Resumo do II Encontro Nacional da Rede Brasileira de Serviços de Preservação ...Carla Ferreira
Resumo do II Encontro Nacional da Rede Brasileira de Serviços de Preservação Digital - Cariniana, realizado pelo IBICT, em novembro de 2013, nas dependências do IBICT, em Brasília, DF, Brasil.
O evento contou com a participação de todas as instituições parceiras da Rede Cariniana e demais interessados.
Internet es una red mundial formada por dispositivos conectados que permiten el intercambio de información a través de un protocolo común. Para acceder a Internet se necesita un ordenador, módem o router, línea telefónica y navegador. El World Wide Web ha permitido que Internet sea accesible al gran público a través de páginas web creadas en lenguaje HTML y visualizadas mediante navegadores como Internet Explorer o Firefox.
Este documento resume as formas quadráticas e autovalores/autovetores. Discute curvas e superfícies quadráticas como parábolas, elipses, hipérboles e suas representações matriciais. Também aborda sistemas lineares quadráticos, aplicações lineares, polinômios característicos e espaços próprios.
Este documento fornece 3 referências bibliográficas sobre aprendizagem e desenvolvimento da linguagem. A primeira refere-se a uma dissertação sobre a importância da leitura no processo de alfabetização. A segunda é uma revisão da literatura sobre intervenções na linguagem escrita para reduzir problemas de aprendizagem. A terceira é uma revisão sobre a influência da família e escola na aquisição e desenvolvimento da linguagem.
Este documento presenta información sobre las principales biomoléculas: carbohidratos, lípidos, aminoácidos y proteínas. Explica que los carbohidratos son la principal fuente de energía y clasifica los carbohidratos en monosacáridos, disacáridos y polisacáridos. Describe los lípidos y los clasifica en simples y complejos. Define los aminoácidos como los componentes de las proteínas y clasifica los aminoácidos. Finalmente, presenta una breve definición de las proteínas.
Este documento apresenta um livro sobre serviço social com os seguintes tópicos: 1) Apresenta os autores e informações sobre a publicação. 2) Discute a missão e valores da instituição Anhanguera Educacional. 3) Introduz a primeira aula sobre a base do pensamento econômico.
Este documento presenta una tabla de clasificación para evaluar actividades relacionadas con gráficas de movimiento parabólico en Excel y PowerPoint. La tabla contiene cuatro categorías que evalúan la presencia o ausencia de operaciones, presentaciones y guías con fórmulas y gráficas en Excel, PowerPoint y Word.
Resumo do II Encontro Nacional da Rede Brasileira de Serviços de Preservação ...Carla Ferreira
Resumo do II Encontro Nacional da Rede Brasileira de Serviços de Preservação Digital - Cariniana, realizado pelo IBICT, em novembro de 2013, nas dependências do IBICT, em Brasília, DF, Brasil.
O evento contou com a participação de todas as instituições parceiras da Rede Cariniana e demais interessados.
Internet es una red mundial formada por dispositivos conectados que permiten el intercambio de información a través de un protocolo común. Para acceder a Internet se necesita un ordenador, módem o router, línea telefónica y navegador. El World Wide Web ha permitido que Internet sea accesible al gran público a través de páginas web creadas en lenguaje HTML y visualizadas mediante navegadores como Internet Explorer o Firefox.
Este documento resume as formas quadráticas e autovalores/autovetores. Discute curvas e superfícies quadráticas como parábolas, elipses, hipérboles e suas representações matriciais. Também aborda sistemas lineares quadráticos, aplicações lineares, polinômios característicos e espaços próprios.
Este documento fornece 3 referências bibliográficas sobre aprendizagem e desenvolvimento da linguagem. A primeira refere-se a uma dissertação sobre a importância da leitura no processo de alfabetização. A segunda é uma revisão da literatura sobre intervenções na linguagem escrita para reduzir problemas de aprendizagem. A terceira é uma revisão sobre a influência da família e escola na aquisição e desenvolvimento da linguagem.
Este documento presenta información sobre las principales biomoléculas: carbohidratos, lípidos, aminoácidos y proteínas. Explica que los carbohidratos son la principal fuente de energía y clasifica los carbohidratos en monosacáridos, disacáridos y polisacáridos. Describe los lípidos y los clasifica en simples y complejos. Define los aminoácidos como los componentes de las proteínas y clasifica los aminoácidos. Finalmente, presenta una breve definición de las proteínas.
Este documento apresenta um livro sobre serviço social com os seguintes tópicos: 1) Apresenta os autores e informações sobre a publicação. 2) Discute a missão e valores da instituição Anhanguera Educacional. 3) Introduz a primeira aula sobre a base do pensamento econômico.
Este documento presenta una tabla de clasificación para evaluar actividades relacionadas con gráficas de movimiento parabólico en Excel y PowerPoint. La tabla contiene cuatro categorías que evalúan la presencia o ausencia de operaciones, presentaciones y guías con fórmulas y gráficas en Excel, PowerPoint y Word.
O documento descreve o Encontro Nacional dos Estudantes de Design (NDesign) que ocorreu em Goiânia, reunindo cerca de 1.200 estudantes de todo o Brasil. O evento contou com palestras, apresentações de trabalhos e oficinas durante uma semana no Câmpus Samambaia da UFG. Profissionais experientes compartilharam suas experiências com os estudantes.
Este documento describe el proyecto Linked Map, el cual tiene como objetivo resolver problemas de interoperabilidad entre datos geoespaciales oficiales y voluntarios mediante el uso de Linked Data. El proyecto convierte estos datos a RDF usando estándares como R2RML, GeoSPARQL y WKT, y documenta su procedencia usando PROV. Adicionalmente, desarrolla un servicio WMS que ofrece los datos en formato Linked Data.
El documento proporciona información sobre el 20° Concurso de Iniciativas Estudiantiles DAE 2016, incluyendo fechas límite para postulaciones el 18 de abril y resultados el 29 de abril, con áreas de postulación en educación, responsabilidad social, vida saludable, género y diversidad, y medio ambiente y sustentabilidad, y la capacidad de postular hasta $600.000.
El documento describe las ventajas del software libre sobre el software privativo, incluyendo mayor calidad, seguridad y estabilidad, así como una superioridad ética, social y política. El software libre promueve la libertad de autocontrol, cooperación y expresión a través de redes que colaboran voluntariamente. Anima a aprender, promover la lectura y la escritura a un menor coste.
Este documento fornece orientações sobre como referenciar diferentes tipos de documentos de acordo com o estilo de Vancouver, incluindo livros, artigos de periódicos, teses, patentes, normas técnicas e outros materiais em formato impresso e eletrônico. As referências devem conter informações como autores, título, local e data de publicação. Fornece também exemplos de referenciação para cada tipo de documento.
Este documento presenta los semilleros de investigación del Programa de Medicina Veterinaria y Zootecnia de la Facultad de Medicina Veterinaria y Zootecnia entre 2005-2010. Describe 9 semilleros activos que cubren áreas como fauna silvestre, nutrición animal, reproducción animal, fisiología, producción bovina, parasitología, medicina de grandes animales y ecología. Los semilleros realizan actividades como campos de trabajo, seminarios, jornadas y participan en eventos regionales, nacionales e internacionales.
Este plan estratégico tiene como objetivo incorporar las TIC a la educación en la Universidad de los Llanos entre 2010 y 2014. Se propone innovar las prácticas pedagógicas mediante el uso de TIC, capacitar a la comunidad universitaria en su uso, dotar de infraestructura tecnológica a la universidad y ofrecer programas virtuales. Para lograrlo, se implementarán planes de acción académico, administrativo, de infraestructura y capacitación con actividades, recursos, responsables e indicadores específicos
This document provides information for non-national students in Colombia, including requirements to obtain necessary documents such as a student visa and identification card within a certain time period of arrival. It also lists contact information for diplomatic representations of various countries in Bogota, including their addresses and contact hours.
O documento fornece um sumário detalhado de nove módulos e unidades didáticas sobre o processo de trabalho em serviço social. O documento aborda tópicos como diagnóstico, projetos sociais, trabalho e relações sociais, divisão social do trabalho, produção social e valor, entre outros.
La agrupación Franja Morada, con más de 40 años de historia defendiendo los derechos de los estudiantes, busca brindar conceptos de la vida universitaria a través de varios encuentros sobre la carrera, la universidad y tutorías. La UNRC forma profesionales y técnicos con conciencia argentina a través de 5 facultades. Ofrece servicios como comedor, becas, biblioteca, salud y deportes para mejorar la calidad de vida de la comunidad universitaria.
INBio is a biodiversity institute in Costa Rica that collects and catalogs species. It has gathered information on over 28,000 species of plants, animals and fungi. Specimens are preserved, collected, labeled and digitized. Data is made accessible online and includes georeferenced location data and barcodes. Goals include identifying 4,000 arthropod and 500 fungal species. Challenges include implementing a new information system and increasing financial resources. The website averages over 700,000 monthly visits, with the majority viewing species records.
Este documento presenta el primer boletín de la Dirección de Docencia de una universidad. Consta de cuatro secciones: una sección de bienvenida, una sección sobre temas de ciencias de la educación, una sección para recibir sugerencias de la comunidad educativa, y una sección de recomendaciones sobre cine y literatura relacionadas con la formación pedagógica. La segunda sección de este número se enfoca en el aprendizaje situado y la cognición distribuida, explicando cómo el conocimiento se construye socialmente a través de la interacción y
Moodle es una plataforma educativa de código abierto que permite a los profesores crear cursos virtuales con diferentes módulos y herramientas como tareas, foros, cuestionarios y wikis. Ofrece una interfaz sencilla y es compatible con los principales sistemas gestores de bases de datos. Proporciona ventajas como la interacción grupal, evaluaciones en línea y aprendizaje colaborativo, aunque también tiene desventajas como la dependencia de Internet y posibles problemas de seguridad o rendimiento.
La bioquímica estudia la composición química de los seres vivos y las reacciones químicas que ocurren en las células. Es una disciplina que se basa en conceptos como que los seres vivos contienen carbono y estudia las moléculas biológicas. La Universidad Maza en Mendoza ofrece una carrera de grado de 5 años en bioquímica que incluye materias como química, biología, fisiología y optativas.
Este documento apresenta um livro sobre serviço social com capítulos sobre comunicação, direito e movimento social. O livro foi escrito por quatro professoras e publicado pela Anhanguera Publicações em 2009.
Como Ingresar A Www.Miscursos.Uat.Edu.MxEleeClases
La página web www.miscursos.uat.edu.mx pertenece a la Universidad Autónoma de Tamaulipas y contiene información y recursos educativos para sus estudiantes.
How To Be Outstanding In Your Field (Work)GeoBlogs
The document discusses fieldwork opportunities for the new A-Level geography specifications in the UK. It provides examples of potential fieldwork activities that could be conducted to investigate different topics, such as river landforms, coastal landforms, landforms in cold and hot desert environments. It also discusses how technology like Google Earth, questionnaires, and risk assessments could be incorporated into fieldwork investigations. The document emphasizes that fieldwork allows students to directly observe geographic features and processes in context, helping them more fully understand required course content.
This document provides a methodology for assessing risk to protected wreck sites in England. It describes a recording system involving 34 data fields to assess location, type, condition, management and vulnerability of wrecks. Risk is measured by condition, material loss, and likelihood of future loss. Five categories of vulnerability are identified: inshore fisheries, natural processes, socio-economic activity, other damage causes, and no known threat. The methodology aims to consistently evaluate risk to better manage threats to the underwater cultural heritage.
O documento descreve o Encontro Nacional dos Estudantes de Design (NDesign) que ocorreu em Goiânia, reunindo cerca de 1.200 estudantes de todo o Brasil. O evento contou com palestras, apresentações de trabalhos e oficinas durante uma semana no Câmpus Samambaia da UFG. Profissionais experientes compartilharam suas experiências com os estudantes.
Este documento describe el proyecto Linked Map, el cual tiene como objetivo resolver problemas de interoperabilidad entre datos geoespaciales oficiales y voluntarios mediante el uso de Linked Data. El proyecto convierte estos datos a RDF usando estándares como R2RML, GeoSPARQL y WKT, y documenta su procedencia usando PROV. Adicionalmente, desarrolla un servicio WMS que ofrece los datos en formato Linked Data.
El documento proporciona información sobre el 20° Concurso de Iniciativas Estudiantiles DAE 2016, incluyendo fechas límite para postulaciones el 18 de abril y resultados el 29 de abril, con áreas de postulación en educación, responsabilidad social, vida saludable, género y diversidad, y medio ambiente y sustentabilidad, y la capacidad de postular hasta $600.000.
El documento describe las ventajas del software libre sobre el software privativo, incluyendo mayor calidad, seguridad y estabilidad, así como una superioridad ética, social y política. El software libre promueve la libertad de autocontrol, cooperación y expresión a través de redes que colaboran voluntariamente. Anima a aprender, promover la lectura y la escritura a un menor coste.
Este documento fornece orientações sobre como referenciar diferentes tipos de documentos de acordo com o estilo de Vancouver, incluindo livros, artigos de periódicos, teses, patentes, normas técnicas e outros materiais em formato impresso e eletrônico. As referências devem conter informações como autores, título, local e data de publicação. Fornece também exemplos de referenciação para cada tipo de documento.
Este documento presenta los semilleros de investigación del Programa de Medicina Veterinaria y Zootecnia de la Facultad de Medicina Veterinaria y Zootecnia entre 2005-2010. Describe 9 semilleros activos que cubren áreas como fauna silvestre, nutrición animal, reproducción animal, fisiología, producción bovina, parasitología, medicina de grandes animales y ecología. Los semilleros realizan actividades como campos de trabajo, seminarios, jornadas y participan en eventos regionales, nacionales e internacionales.
Este plan estratégico tiene como objetivo incorporar las TIC a la educación en la Universidad de los Llanos entre 2010 y 2014. Se propone innovar las prácticas pedagógicas mediante el uso de TIC, capacitar a la comunidad universitaria en su uso, dotar de infraestructura tecnológica a la universidad y ofrecer programas virtuales. Para lograrlo, se implementarán planes de acción académico, administrativo, de infraestructura y capacitación con actividades, recursos, responsables e indicadores específicos
This document provides information for non-national students in Colombia, including requirements to obtain necessary documents such as a student visa and identification card within a certain time period of arrival. It also lists contact information for diplomatic representations of various countries in Bogota, including their addresses and contact hours.
O documento fornece um sumário detalhado de nove módulos e unidades didáticas sobre o processo de trabalho em serviço social. O documento aborda tópicos como diagnóstico, projetos sociais, trabalho e relações sociais, divisão social do trabalho, produção social e valor, entre outros.
La agrupación Franja Morada, con más de 40 años de historia defendiendo los derechos de los estudiantes, busca brindar conceptos de la vida universitaria a través de varios encuentros sobre la carrera, la universidad y tutorías. La UNRC forma profesionales y técnicos con conciencia argentina a través de 5 facultades. Ofrece servicios como comedor, becas, biblioteca, salud y deportes para mejorar la calidad de vida de la comunidad universitaria.
INBio is a biodiversity institute in Costa Rica that collects and catalogs species. It has gathered information on over 28,000 species of plants, animals and fungi. Specimens are preserved, collected, labeled and digitized. Data is made accessible online and includes georeferenced location data and barcodes. Goals include identifying 4,000 arthropod and 500 fungal species. Challenges include implementing a new information system and increasing financial resources. The website averages over 700,000 monthly visits, with the majority viewing species records.
Este documento presenta el primer boletín de la Dirección de Docencia de una universidad. Consta de cuatro secciones: una sección de bienvenida, una sección sobre temas de ciencias de la educación, una sección para recibir sugerencias de la comunidad educativa, y una sección de recomendaciones sobre cine y literatura relacionadas con la formación pedagógica. La segunda sección de este número se enfoca en el aprendizaje situado y la cognición distribuida, explicando cómo el conocimiento se construye socialmente a través de la interacción y
Moodle es una plataforma educativa de código abierto que permite a los profesores crear cursos virtuales con diferentes módulos y herramientas como tareas, foros, cuestionarios y wikis. Ofrece una interfaz sencilla y es compatible con los principales sistemas gestores de bases de datos. Proporciona ventajas como la interacción grupal, evaluaciones en línea y aprendizaje colaborativo, aunque también tiene desventajas como la dependencia de Internet y posibles problemas de seguridad o rendimiento.
La bioquímica estudia la composición química de los seres vivos y las reacciones químicas que ocurren en las células. Es una disciplina que se basa en conceptos como que los seres vivos contienen carbono y estudia las moléculas biológicas. La Universidad Maza en Mendoza ofrece una carrera de grado de 5 años en bioquímica que incluye materias como química, biología, fisiología y optativas.
Este documento apresenta um livro sobre serviço social com capítulos sobre comunicação, direito e movimento social. O livro foi escrito por quatro professoras e publicado pela Anhanguera Publicações em 2009.
Como Ingresar A Www.Miscursos.Uat.Edu.MxEleeClases
La página web www.miscursos.uat.edu.mx pertenece a la Universidad Autónoma de Tamaulipas y contiene información y recursos educativos para sus estudiantes.
How To Be Outstanding In Your Field (Work)GeoBlogs
The document discusses fieldwork opportunities for the new A-Level geography specifications in the UK. It provides examples of potential fieldwork activities that could be conducted to investigate different topics, such as river landforms, coastal landforms, landforms in cold and hot desert environments. It also discusses how technology like Google Earth, questionnaires, and risk assessments could be incorporated into fieldwork investigations. The document emphasizes that fieldwork allows students to directly observe geographic features and processes in context, helping them more fully understand required course content.
This document provides a methodology for assessing risk to protected wreck sites in England. It describes a recording system involving 34 data fields to assess location, type, condition, management and vulnerability of wrecks. Risk is measured by condition, material loss, and likelihood of future loss. Five categories of vulnerability are identified: inshore fisheries, natural processes, socio-economic activity, other damage causes, and no known threat. The methodology aims to consistently evaluate risk to better manage threats to the underwater cultural heritage.
This thesis develops a methodology to analyze technical, economic, and risk factors for vertical, horizontal, and multilateral well completions. The analysis uses well performance modeling, decline curve analysis, cash flow modeling, and decision tree analysis. It aims to help engineers systematically evaluate alternatives to maximize hydrocarbon recovery based on reservoir-specific conditions and uncertainties. The methodology is demonstrated through examples of oil and gas wells.
Surveying Heritage with Affordable Yet Accurate Methods. A Study Case from Ag...IEREK Press
One of the key aspects to keep adequate management and preservation of the built heritage is to maintain an adequate registry of the monuments. In many cases, state-of-the-art technologies are being used to develop accurate and rapid surveys, which utilize sophisticated high-cost equipment. However, in developing countries that possess a rich heritage, many of these technologies are beyond the reach of their possibilities, having to rely on manual, inefficient and inaccurate systems that are still used. This research shows several alternatives of relatively low-cost techniques that allow a reliable data collection of built heritage, without losing the richness of the details of the historical architecture. To do this, a comparison is made between different methods of manual, semi-automatic and automatic data collection, analyzing their costs and benefits. Subsequently, a comparative survey is carried out using the most efficient and affordable methods, proposing a methodology that leads to the improvement of surveys in historical buildings without this entailing a significant increase in costs.
The document provides instructions for a group project to research and summarize the important tourist attractions of Cuenca, Ecuador. Students will work in groups to research the architectural, cultural, and natural attractions of the city. They will gather information on landmarks, museums, and parks. The groups will organize their findings, create a presentation with photos and maps, and write a summary highlighting what makes Cuenca a culturally significant tourist destination.
The document provides instructions for a group project to research and summarize the major tourist attractions of Cuenca, Ecuador. Students will work in groups to research the architectural, cultural, and natural attractions of the city. They will gather information on landmarks, museums, and parks. The groups will organize their findings, create a presentation with photos and maps, and write a summary highlighting what makes Cuenca a culturally significant tourist destination.
This thesis examines the impact of river normalisation on trash flow and flood infrastructure in Jakarta, Indonesia. An experiment was conducted to test how river normalisation, the process of artificially modifying river channels for flood mitigation, affects trash velocity and accumulation. The results suggest that trash is less likely to accumulate within a normalised river section, but more likely to deposit downstream. This can shift flood risks to new locations and increase vulnerability for the city. The movement of trash from natural deposition sites via normalisation indicates risks to downstream infrastructure and communities from such widespread projects in Jakarta.
This document is a curriculum vitae for José María Medina Villaverde, a Spanish civil engineer. It outlines his education history including an MSc in Civil Engineering from the Polytechnic University of Madrid and a PhD in Marine Sciences from the Polytechnic University of Catalonia. It also details his professional experience working in marine engineering, coastal engineering, ports engineering and mathematical modeling. Finally, it lists his technical skills, language abilities and computing proficiencies.
This document provides an overview of geological classification of rocks. It discusses the three main categories of rocks: igneous, sedimentary, and metamorphic rocks. Igneous rocks form from cooling magma and are classified based on mineral composition and texture. Sedimentary rocks form through mechanical, chemical, or organic processes of deposition and include sandstones, limestones, and shales. Metamorphic rocks form through heat and pressure altering existing igneous and sedimentary rocks and recrystallizing their minerals. Understanding the geological origin and properties of different rock types is important for planning excavation projects.
The Ministry of Culture data bases: “Carta del Rischio” e “Vincoli in Rete” -...UNESCO Venice Office
FIGHTING AGAINST THE ILLICIT TRAFFICKING OF CULTURAL PROPERTY
Cross-border training workshop for authorities from the Republic of Moldova and Romania
Rome, Italy, 12-16 November 2018
Wednesday, 14 November
This document provides a summary of the accuracy and status of Mercator Ocean's global and regional ocean monitoring and forecasting systems for the period of October-November-December 2012. It finds that while systems generally provide an accurate description of ocean temperatures and currents compared to observations, there are some biases and inaccuracies. For example, sea ice concentrations are overestimated in polar regions and surface currents are underestimated compared to drifter measurements. Overall the monitoring systems closely match altimetry observations, but subsurface currents at the equator are unrealistic. The forecasts show skill compared to observations, but the signal is noisy. The high resolution regional models perform well on average despite not assimilating data.
The document discusses new approaches to planning and design for resilience. It begins with short biographies of the speakers and discusses how architecture must accept itself as part of broader systems and multiplicities in the 21st century. It then outlines three needs: to link small-scale projects to big-picture visions; to rethink aesthetic control so others can engage; and to visually incorporate systems and processes into projects. Specific projects are presented that aim to operationalize these principles at various scales. The discussion emphasizes collaborative and adaptive approaches.
This document is a bibliography containing references for books, articles, websites and other resources on topics related to sustainable architecture, green building design, and environmental design. The references cover subjects such as biomimicry, ecological design principles, green technologies, sustainable urban planning and more. A variety of international authors and publications from 1994 to 2009 are represented. The bibliography contains over 50 individual references.
The document summarizes a project between the Queen's Recycling Group (QRG) and the 80 Daly community in Kingston, Ontario to implement a recycling program. Key aspects of the project include engaging community members to understand their needs, organizing a recycling fair and swap meet, and developing an educational presentation for a local school. The goal is to reduce waste going to landfills and earn money for a community playground. Challenges addressed are illegal dumping and maintaining community participation over time.
The document discusses the history and uses of guadua, a type of bamboo found in Colombia. It describes how guadua has traditionally been used by local communities for housing and tools. It also outlines recent efforts to standardize guadua harvesting and production techniques through the creation of technical committees. The document highlights current applications of guadua in construction and the development of guadua processing machines. It proposes guadua as an alternative resource for economic development.
The city of Jakarta, Indonesia is prone to severe annual flooding that causes significant damage. The urban poor are often not included in flood damage assessments, so their situation does not improve. This study estimates the direct and indirect yearly flood damages experienced by the urban poor in Jakarta. Results show the urban poor experience $16.5 million in direct damages annually and $14.5 million in total damages when considering production losses, health impacts, and recovery costs. Incorporating the urban poor into future flood assessments is recommended to help address their vulnerability and improve resilience.
E-waste refers to discarded electrical and electronic equipment. There is no universally agreed upon definition of e-waste, but it generally includes outdated or broken electronic devices such as computers, televisions, cell phones, and other appliances. E-waste is considered a global issue due to the large and growing volumes being produced, the presence of toxic substances in many devices, and poor recycling and disposal practices internationally, especially in developing countries.
Engineering the future means tackling the problems today…
This report is part of the 4th semester Architectural Technology and Construction Management education. The summer of 2011 was the starting point for my interest regarding floating constructions. It started with a book, named FLOAT (by Koen Olthuis and David Keuning). I was very interested about this technology, and the book proved to be a good starting point to find out more about it. During 3rd semester I had the opportunity to make a report about this theme and so I combined my learning goals with personal interests and decided to find out more.
Now, studying in the 4th semester I have decided to continue writing about floating constructions, and the main subject for this report is a floating city. Many say it is impossible, or even pointless. Advances in material science, nautical design and maritime constructions could not only make the floating city possible but it may also be an essential asset in the near future. Can we build it? YES, WE CAN! It is not a question of whether we can do it…but how we do it.
I would like to thank the people who supported me in doing this report. Many thanks to my guiding teacher Mihoko Goto Brethvad who accepted the problem statement of a floating city and many thanks as well to architect journalist David Keuning for the interview, and last but not least, many thanks to Koen Olthuis for sharing his ideas regarding building on water worldwide.
Evaluating urban planning strategies using a Cellular Automata based dynamic ...Joaquim Mocito Agostinho
The document summarizes a thesis that uses a cellular automata model to simulate land use dynamics in Dublin, Ireland. The model is used to evaluate different urban planning strategies at metropolitan and regional scales. At the metropolitan scale, scenarios include "business as usual" development as well as scenarios that impose constraints like zoning restrictions, urban growth boundaries, and greenbelts. Analysis of the scenarios uses metrics like fractal dimensions and spatial patterns to evaluate the effects of the different planning strategies. The model is intended to serve as a tool for integrated spatial planning.
E-scooter operators are coming to our cities. There is a clear business interest for them. But cities have a clear interest as well : reducing car traffic, air pollution and reclaiming public space and pushing the number of cyclists in the city. Cities should invest in high-quality cycling services in order to prepare to the Mobility as a Service era.
Micro-mobility & free floating bike sharing are disrupting the classical mobility model in European cities. The Brussels region has adopted a balanced legal framework empowering disruptive innovation on the one hand and meeting public interests (such as saving public space) on the other hand
Urban cycling is not about travelling from A to B, but about city life. #brusselsforpeople - the Brussels public space renewal program of Pascal Smet - tends to make public space more than a mobility space for cars or public transport, but a space where people want to stay, play and meet. #bikeforbrussels is more than a communication campaign or an investment program on separated bike lanes, it is a brand that brings people together and seeks true engagement.
This slides were presented at the UCI Mass Participation & Advocacy commission (5/3/'19)
In 2018 werden parallel aan de werken voor de aanleg van fietspaden, tussentijdse fietsinrichtingen uitgevoerd op de Kleine Ring tussen Quetelet en Troon
The document proposes creating 50 km of cycling express lanes near railway lines in Brussels to encourage more commuting by bicycle. It notes that currently only 1.9% of commuters in Brussels bike compared to 37% in Copenhagen. The cycling express lanes would be flat paths on approach roads and run parallel to railway lines. The document estimates the cost at €50 million, which is affordable and five times the annual cycling budget for Brussels Region. It provides examples of specific proposed paths and estimated costs. The goal is to make cycling safer, more direct, and reduce barriers to increase bicycling as a means of transportation.
Brussel staat stil. Trams en bussen rijden zich vast in de autofiles. Het openbaar vervoer is nog onvoldoende een alternatief voor de auto. Jef Van Damme: “We moeten een fundamentele keuze maken voor sneller openbaar vervoer. We kunnen niet nog eens 10 jaar wachten op een metrolijn. Brussel heeft genoeg plannen en projecten op lange termijn. Kies voor betaalbare ingrepen die meteen een verbetering opleveren, te beginnen bij de historische steenwegen. Daar willen we het autoverkeer in 1 richting zetten.” Het alternatief van sp.a omvat ook een tiental voetgangerszones en een netwerk aan overstappunten. Het kan binnen de 3 jaar gerealiseerd worden en dit voor een beperkt budget.
Vandaag zijn we fulltime bezig met de crisis: begrotingsdiscipline, banken hervormen, gesloten fabrieken verwerken. Maar wat na de crisis? Wat als de rust en de rede is teruggekeerd? We kijken meewarig terug naar de excessen van op hol geslagen banken en de paniekreacties van de betrokken staten. We hebben geleerd uit de fouten van het verleden. Tot dat verleden behoren onherroepelijk: de verzuiling, het geloof in een bureaucratische overheid, het meelopen met het zelfregulerende kapitalisme. Het besef is gegroeid dat overheid, kapitalisme en ideologieën feilbaar zijn. Wim Vermeersch beschreef naar aanleiding van 100 jaar Vooruit een hernieuwd geloof in lokale initiatieven en burgerinitiatief. Samen met nieuwe technologieën, de informatierevolutie en de groeiende steden voeren ze ons razendsnel naar een nieuwe maatschappij: de netwerksamenleving.
De strijd tegen leegstand werd de voorbije 20 jaar te vaak gevoerd door nieuwe bestraffende instrumenten te creëren. De bal lag steeds in het kamp van de overheid die leegstand moet opsporen en kunnen aantonen. Vandaag krijgen speculanten meer dan ooit vrij spel en worden de instrumenten amper toegepast.
Het is tijd om het roer om te gooien door de burger zelf in te zetten. Laat eigenaars zelf hun leegstand melden bij de overheid (meldingsplicht). Overheid en eigenaar kunnen samen een contract naar hergebruik opstellen door:
- Het gebouw tijdelijk te laten gebruiken door verenigingen;
- Woningen door te verkopen tegen verlaagde prijs aan jonge gezinnen die ze opknappen (DIY-woning);
- kantoren om te vormen tot woningen.
Wie niet meedoet, wordt bestraft met een leegstand- en/of meldingsboete.
The document discusses plans to develop Brussels' canal area as the new city center. It notes that the city center is moving towards the canal, but there is no master plan for development and the canal acts as a barrier between neighborhoods. It identifies challenges in working, living, meeting, and mobility along the canal. It then proposes five urban projects and ten waterfront principles to help concrete a vision, including creating affordable housing, connecting districts with green spaces, and prioritizing public transport and pedestrians over cars.
The document discusses plans to develop Brussels' canal area into a new city center. It notes that currently there is no master plan for the canal and it acts as a barrier between neighborhoods. The vision is to create an interconnected public waterfront through five urban projects that address challenges of work, living, meeting and mobility. This would include redeveloping industrial areas, improving housing, creating public spaces, and enhancing multi-modal transportation along the canal. The goal is to connect communities and establish the canal as the green heart of the city.
Brussels parlementslid Jef Van Damme (sp.a) onthult waarom de mobiliteit in Brussel niet verbetert.
20 miljoen kilometer, Cyclovia, Lyon als voorbeeld, elk jaar meer fietsers… Er wordt heel vaak gecommuniceerd over mobiliteit in Brussel, maar de bereikbaarheid op het terrein verbetert er niet op. Volgens de Barometer van de Belgische Attractiviteit daalt de aantrekkelijkheid van Brussel als zakenstad door het ontzettend grote mobiliteitsprobleem en in 2011 was Brussel opnieuw de filehoofdstad van Europa. Ondertussen overschrijdt Brussel elk jaar de Europese normen voor fijn stof. Nochtans heeft de Brusselse regering op initiatief van Pascal Smet een aantal belangrijke stappen gezet om de mobiliteit in Brussel te verbeteren. Dit beslist beleid – in de vorm van vijf ordonnanties – blijkt in de helft van de legislatuur nog altijd niet uitgevoerd. Jef Van Damme : “De gevolgen van het niet uitvoeren van deze maatregelen ondervinden de pendelaars en Brusselaars elke dag.”
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
inQuba Webinar Mastering Customer Journey Management with Dr Graham HillLizaNolte
HERE IS YOUR WEBINAR CONTENT! 'Mastering Customer Journey Management with Dr. Graham Hill'. We hope you find the webinar recording both insightful and enjoyable.
In this webinar, we explored essential aspects of Customer Journey Management and personalization. Here’s a summary of the key insights and topics discussed:
Key Takeaways:
Understanding the Customer Journey: Dr. Hill emphasized the importance of mapping and understanding the complete customer journey to identify touchpoints and opportunities for improvement.
Personalization Strategies: We discussed how to leverage data and insights to create personalized experiences that resonate with customers.
Technology Integration: Insights were shared on how inQuba’s advanced technology can streamline customer interactions and drive operational efficiency.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
"Choosing proper type of scaling", Olena SyrotaFwdays
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
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Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
"Frontline Battles with DDoS: Best practices and Lessons Learned", Igor IvaniukFwdays
At this talk we will discuss DDoS protection tools and best practices, discuss network architectures and what AWS has to offer. Also, we will look into one of the largest DDoS attacks on Ukrainian infrastructure that happened in February 2022. We'll see, what techniques helped to keep the web resources available for Ukrainians and how AWS improved DDoS protection for all customers based on Ukraine experience
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
4.
Contents
1. Introduction ..................................................................................................................................... 1
2. How to use the Atlas in 3 steps ....................................................................................................... 2
3. Cuenca’s cultural awareness, environment and climate ................................................................ 3
4. Material and its value, damaging cause and damage pattern ........................................................ 4
I. Classification ........................................................................................................................................ 5
1. Classification through material type [Which material is affected?] ................................................ 5
2. Classification through damaging mechanism [What is the cause?] ................................................ 7
3. Classification through damaging pattern [What do you see?] ........................................................ 9
4. Classification through building state [What is the actual state?] ................................................. 12
5. Classification through severity [How bad or threatening is the damage?] .................................. 12
.
II. Case Studies ...................................................................................................................................... 14
.
1. Aesthetical and surface problems ................................................................................................. 14
2. Disintergration (surface to structural problems) .......................................................................... 28
3. Surface cracks ................................................................................................................................ 50
4. Structural cracks ............................................................................................................................ 52
5. Other structural problems ............................................................................................................ 64
.
5.
6. Damage atlas of historical Cuenca, Ecuador (earthen materials)
1. Introduction
This Damage Atlas wants to be a helpful tool in defining damages and their causes in historical building
materials. Research methods and solutions for occurring problems are integrated as well. More specific,
the center of this book are the materials and buildings in the Unesco World Heritage city of Cuenca
(Ecuador).
A manual will lead the reader through this atlas which should be used preferably in situ and in an active
way. The first questions always should be quot;What do we see?quot; and quot;What are we talking about?quot; since a
proper investigation and correct description are necessary. In a second stage, quot;What are the (physical)
damaging causes?quot; and quot;What is a sustainable precaution or solution?quot; are critical in evaluating the
seriousness and developing right decisions for damages.
SaMat is the Systematical Analysis of these Materials and Their damages through centralizing and
validating data on an engineering level. SaMat comprises the methodology, the database, called SaMat
Doccenter1, and this damage atlas as resulting product. This master piece should lead to our thesis2 in
partial fulfillment of the requirements for the degree Master of Applied Sciences and Engineering (Civil
Engineering). The thesis fits within the VLIR IUOS project quot;World Heritage City Preservation and
Managementquot;3.
We have to thank all the people who were involved and extremely helpful for this project. Special
thanks go to prof. Koenraad Van Balen, prof. Fausto Cardoso, arq. Veronica Heras and our families.
Sam De Jongh and Matthias Van Wijnendaele
Cover (left to right, top to bottom): Casa de Los Arcos, Casa de Las Posadas, Iglesia Santo Domingo and Casa de las Palomas, carrying adobes, adobe wall
There are some copylefts to the authors on photos in this book
1
SaMat Doccenter is available online https://ernie.urania.be/oberon/mvwn/Thesis/doccenterV6/ or on the
included CD and is only usable with Internet Explorer (all versions)
2
2009, “Earthquakes and other damaging mechanisms to earth structures (case study Cuenca, Ecuador)”
3
Information on the project can be found on http://vlir iuc.ucuenca.edu.ec/proyectos_detalle.php?proyecto=20
1
7. Damage atlas of historical Cuenca, Ecuador (earthen materials)
2. How to use the Atlas in 3 steps
This book is intended for students and professionals (architects, engineers…) involved in (problems
with) historical buildings in Cuenca. This book is a guide in determining damaging causes and proper
solutions but can’t replace the expert.
Part I of the book comprises definitions, explanations and classifications, while part II (in color) includes
the different case studies.
Step 1 ‐ First, the observed damage has to be classified with the help of the figures in the
cases (part II of the Atlas). The respective definition of the damage type with the probable
causes of the damage can be found in part I.
Step 2 ‐ Afterwards, the user’s own hypothesis and further analysis can be compared with
the first idea which can be adjusted if needed. Through facts‐analysis and visual inspection, first
assumptions can be made and should be verified or rejected by further laboratory and
literature research.
Step 3 ‐ In a third stage the opinion and help of an expert or the experience and knowledge
of local people can be important since a wrong analysis and treatment can cause further harm
to the building.
Special care should be taken at all times in separating damage and cause clearly from each other.
All data gathered during our expedition to Cuenca can be found in the Doccenter database on the CD
attached to this Atlas. This database comprises photographs from us and other people, all investigated
buildings and damages. Also papers and presentations and references can be found here. This Atlas
refers to Doccenter with following symbols
Referring to buildingID (building identity number)
Referring to photoID (photo identity number)
Referring to damageID (damage identity number)
2
8. Damage atlas of historical Cuenca, Ecuador (earthen materials)
3. Cuenca’s cultural awareness, environment and climate
The historical importance of the city center of Cuenca is big and UNESCO approved this in 1999 by
declaring it as a cultural World Heritage site. The awareness of the local people and governments is
rising but still on a low level. Academic staff, historians and architects are playing a leading role in the
conservation of the historical city. The existing VLIR‐IUOS project is an example of this concern.
Cuenca is lying in a dale of 4 rivers in the high mountains of the Andes at 2500 m above sea level. The
environment is healthy, but due to heavy traffic combined with unrefined oil, local air pollution is a
great threat for the city.
At this height, the climate is not comparable with the tropical weather of the rainforest and coastal
region (e.g. Guayaquil). In contrary, Cuenca has a year‐round mild climate with an average daily
temperature of 16°C. The temperature is not varying much during the year with maxima and minima of
around 20°C and 10°C respectively (see Figure 1Error! Reference source not found.). It is comparable to
the spring season in Belgium. There are no temperatures lower than 0° measured in this period. The
rainy season with periodic afternoon showers, generally lasts from mid‐October until early May. A
maximum of 110 mm monthly rain fall is found in April and May, proving the local saying “Avril, aguas
mil”4. The relative humidity is less than 80 % (comparable to spring and summer in Belgium). Data from
ISMCS v4.0, NOAA National Data Centers (US Department of Commerce) for Cuenca and from Royal
Meteorological Institute (KMI) for Belgium were used.
Since the earth is moving around the sun in a quasi‐circle with a 23°27’ inclination, seasons exist. In
Ecuador however, there is no actual north (where the sun never comes) or no south as we know it. Only
between 23rd of September and 21st of March, the sun is standing in the South. This should be taken
into account for damages caused by the sun (e.g. algae growth). The sun rises and sets in the East and
West, but its path has only a little variation to the South or North during the year. This explains the
stable climate through the year.
120 100
25
Monthly Temperature (° C)
Relative Humidity (%)
100 90
20
Precipitation (mm)
80 80
15
60 70
10
40 60
5
20 50
0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (Cuenca, 10‐year Average)
Highest Temperature (Cuenca, 7‐year Average)
Precipitation (Belgium)
Highest Temperature (Belgium)
Lowest Temperature (Cuenca, 7‐year Average) Relative humidity (Cuenca, 10‐year Average)
Lowest Temperature (Belgium) Relative Humidity (Belgium)
Figure 1: Climate data for Cuenca (source: ISMCS v 4.0, NOAA National Data Centers) and Belgium (source: KMI)
4
“Avril, aguas mil”, dixit José‐David Heras Barros meaning “A thousand rain showers in April”
3
9. Damage atlas of historical Cuenca, Ecuador (earthen materials)
4. Material and its value, damaging cause and damage pattern
What is damage or deterioration? It’s the reduction of ability to perform up to an anticipated defined
standard due to an unwanted change of any property other than considered normal. This process of
change causes a damage pattern which is determined by the severity of the damaging agent and the
resistance of the material to the damaging mechanism. When this mechanism is more severe than the
material’s resistance and the damage reaction is higher than accepted, one speaks from damage
(Franke & Schumann, 1998).
On the other side, not all changes are unwanted (e.g. renovation) and some changes can be considered
as normal (e.g. renewing outdoor paint). In this last case, weathering or erosion has found place due to
the action of weather and environment which is completely predictable.
Also some damage can be considered faster as damage when the building (or object) is more valuable.
As engineering students, we are not participating in the estimation of the (historical) value of buildings.
However, we are influenced by the enthusiasm of the Cuencanian historians and architects, learning
the importance of colonial earthen dwellings.
The key issue on studying damages is to distinguish damaging patterns from their (primary or
secondary) causes. For example, powdering of bricks is the damaging pattern due to a chemical process
introduced by urine (secondary cause). The primary cause is the biological deposit of human urine (see
Figure 2).
Damaging Damage pattern
Material [3]
mechanism [5] [6]
Figure 2: Building materials are affected by damaging mechanisms resulting in a damage pattern
4
10. Damage atlas of historical Cuenca, Ecuador (earthen materials)
I. Classification
1. Classification through material type [Which material is affected?]
Different types of material are used in the historical buildings of Cuenca. Next to cloth (for ceilings),
paint and glass, this section gives a summation of the most important ones.
Stone (piedra) and marble (mármol) – During the colonial period Pumapungo was declared a public
quarry providing stone for the foundations of colonial churches and houses. Also the 4 rivers were a
reference for round stones (piedra del rio). On the other hand the historical buildings in Cuenca are a
reference for honey‐coloured and pink travertine marble from the Sayausì mines (e.g. actual city hall or
Alcaldìa, 13). In Ingapirca ( 211) diorite stone (intrusive volcanic stone) was found. This stone is
characterized by its visible crystals (> 1mm). But also the finer variant andesite stone (extrusive volcanic
stone) is present in and around Cuenca with crystals invisible for the eye. Other volcanic stones are
from the pyroclastic, tuff or ashstone type containing bigger fragments ( 217).
Wood (madera) – Eucalyptus wood is used as such in roofs, floors or as supporting element in
composite walls (see bahareque). The type, known as Eucalyptus globules, was introduced from
Australia in the 1860s and dominates the landscape of the inter‐Andean valleys (Neill, 2008). It is a
hardwood that earns high marks for strength, durability and excellent weathering characteristics similar
to those of teak wood. Hardwoods have pores or vessel elements that occur among fiber and
parenchyma cells. Cellulose content ranges from 40 to 50% with 15‐25% lignin (less than softwood) and
15‐25% hemicelluloses (more than softwood). The remaining components consist of various
extracellular compounds (Blanchette, 2000).
Reed (carrizo) – The reed in Cuenca is found to be sugar cane (Saccharum officinarum) and is locally
called carrizo or sometimes caña (de azucar). They also can make rope or strings with cut and dried
leaves. In Ecuador also the flatter caña guadua and used in construction in the coastal part and the
Oriente. Do not confuse carrizo with the giant cane or bamboo reed Arundo donax (in Ecuador called
carrizo grande or caña brava from which the popular caña drink is made.
Earth (barro) – Earth can be found on the construction site or at local extraction sites. Generally very
little is known about the characteristics of the mud. The properties for different locations near Cuenca
are investigated (De Jongh & Van Wijnendaele, 2009). Earth is used in adobe, tapial and bahareque, as
well as in finishing layers and in mortars for cementation of tiles, stones and (adobe) bricks.
(Polychrome) metal sheets (placas de latón policromado) – Multicoloured sheets of zinc are found a
lot in interior (mainly ceilings) as well as in exterior decoration (Casa de los Arcos, 214). The history
of this from Europe imported sheets is found in the nationwide boom in exports around 1860 (Torres
Hidalgo, 2007).
Wrought iron (hierro forjado) – This iron has a very low carbon content and due to slag inclusions it is
fibrous. It is ductile (not brittle) and easily welded. The material was introduced during the 1860 boom
(Torres Hidalgo, 2007).
5
11. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Fired bricks (ladrillo) – A ceramic material obtained by preparation, moulding (or extrusion) of raw
material (clay) and subsequent drying and firing at an appropriate temperature (Franke & Schumann,
1998). It is widely used as building material in new constructions in the new district of Cuenca (El Ejido).
Roof tiles (teja) – This ceramic material consists mainly of clay but it is not known with the usual glaze
finish. There shape is semi‐cylindrical (called mission or barrel, 207) or flat ( 59).
Trash of tiles (cisco) – Cisco is found and used as protecting layer on bahareque and adobe masonry (
267). Broken tiles are applied in the earthen surface layer (revoque).
Reinforced concrete (hormigón / concreto armado) – A construction material composed of cement,
gravel, sand and water which hardens after a chemical process called hydration. It is mostly reinforced
with steel to increase the tensile strength. It is a modern building material used in Cuenca (Universidad
de Cuenca, 260). A decorative concrete floor, called terrazzo was found in iglesia Santo Domingo (
59 and 379) as well.
Adobe masonry (mamposteria de adobe) – Adobe walls should not be mistaken for tapial or
bahareque even if they are called so in literature (e.g. Guía de arquitectura). Adobe bricks are made of
earth (containing sand and high amounts of clay), water, straw and sometimes animal excrements.
They are made in wooden moulds with dimensions of 25‐60cm by 14‐20cm by 10‐17cm. They can be
reinforced with steel in combination with cement mortar, but in Cuenca only unreinforced adobe is
found (see Figure 3a). Additives such as asphalt, ethyl silicate and other chemical additives are also not
used. Its composition (clay content, type of clay, particle size distribution, soluble salt content…) is
determinant for the adobe properties (colour, compressive strength, durability…) and is investigated by
the authors in their thesis. Finally, the properties of an adobe brick cannot be plainly extrapolated to
the masonry, a combination of earthen joints, wooden reinforcement and adobe bricks.
Rammed earth (tapial) – Although it is not much found in Cuenca, rammed earth is a traditional way
for construction of walls (see Figure 2b). Moist earth is poured into a formwork (encofrado, two
connected parallel plates) in layers of to 15 cm thick, and then compacted by ramming. Since it is
monolithic, a longer life is granted in comparison with adobe (Minke 2006).
Figure 3: (a) An unfinished adobe wall in Cuenca (SaMat Doccenter 206); (b) Shrinkage cracks and production joints of tapial
in Ecuador (Minke 2006) (c) A rural house made of bahareque (SaMat Doccenter 322)
Wattle‐and‐daub (bahareque) – In the wide surroundings of Cuenca, bahareque is made of wood, reed
and earth and is known as bahareque de tierra (see Figure 3c). The primary (diagonal V‐structure or
crossed) and secondary (vertical parallels heart‐to‐heart 40 cm) structures are always made of wood.
Regularity in this framework is rare since windows and doors are introduced in the structure. The reed
is braided on both sides of this structure. Since the cavity between the reed is not filled we are dealing
6
12. Damage atlas of historical Cuenca, Ecuador (earthen materials)
with hollow bahareque (tierra hueco). Afterwards a thick earthen layer (revoque) with straw and a thin
earth‐chalk layer (empaneite) are applied (Ortiz Crespo, 2005).
Lime plaster (empaneite, yeso) – Although earthen surface finishes are found as well, a lot of (adobe
and brick) buildings are finished with lime plasters. Lime plasters are a mixture of calcium hydroxide
and sand.
Cement plaster (cemento) – Cement is regularly used as surface layer and is a mixture of (plaster,)
sand, Portland cement and water. The choice is (often incorrectly) based on its high strength and water
resistant properties.
For an overview of how and where these materials are used in the historical buildings of Cuenca, the
authors are referring to their thesis. Patios and balconies (decorated with wrought iron) with a wooden
structure, ceilings of wood or zinc are typical. A traditional colonial dwelling may consist of river stones
at the basement, adobe masonry on the ground floor (paved with floor tiles or small river stones) and
bahareque for the upper floors (with wooden floors). Tiles on the roof and cisco at the side walls makes
it complete. But also brick masonry is frequently found. Sometimes they are left naked, but often they
are finished with travertine marble or – more common – decorative plasters.
2. Classification through damaging mechanism [What is the cause?]
We can also classify the damages by its cause or damaging mechanism (see Table 1). This gives a
structural overview of the probable risks for the historical buildings in Cuenca. The damages are always
listed per cause from structural (e.g. collapse) to aesthetical (e.g. staining). We should mention that
some damages only can be caused in one time (an impact) and other by a continuous action (erosion).
It is also important to understand the place of a damage pattern in the buildings life cycle starting from
the design (e.g. general error/risk) to the end (e.g. no intervention).
7
13. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Table 1: Classification by damaging mechanisms (or causes)
CAUSE SPECIFIC CAUSE DAMAGE PATTERN
Mechanical (Over)loading Deformation, crack, spalling
Settlement Leaning, deformation, crack
Wind Leaning, erosion, pitting
Use Crack, corrasion, polishing
Impact Chipping, crack, cut
Traffic Crack
Seismic Collapse, crack, loss of material
Design Renovation (/reparation) Destruction (+ new), loss of material, change of impression
Design General error/risk, structural instability, crack, choices
Construction Applied material, technique or system
Maintenance Incorrect use, incorrect / no intervention
Physical Water Bending, erosion, (network) crack, powdering, sanding,
bulging, loss of bond, peeling, blistering, fading, staining,
soiling, rotting, softening
Salt (network) crack, powdering, crumbling, encrustation,
scaling, spalling, delamination, exfoliation,
(crypto)efflorescence, patina, blistering, patina
(Differential) expansion Crack
Chemical Metal corrosion Conversion, crack, loss of bond, staining
Sun (UV) Fading
Fire Destruction, crack, spalling, blackening
Air (pollution) Soiling
Water, gases, acid Crack, conversion, staining
Graffiti Staining
Soot Soiling
Biological People and animals Conversion, deposit
Beetles Structural instability, loss of material, change of impression
Moulds Conversion, visible
Algae Peeling, visible
Lichens, liverwort, Visible
Fern Visible
Higher plants Structural instability, crack, loss of bond, visible
Moss Sanding, visible
8
14. Damage atlas of historical Cuenca, Ecuador (earthen materials)
3. Classification through damaging pattern [What do you see?]
A brief list of damage jargon with description is given here since it is not always easy to describe what
you are seeing in situ in one word. This is the starting point for users of this Damage Atlas since the
causes can be determined out of the observation of the damaging pattern.
Change of impression
Caused by new design due to renovation/reparation 32 and attack of beetles 94
Discoloration
Fading5 : paint ‐ Loss of colour intensity or brightness of colour
Caused by water 49 and ultraviolet radiation (sun) 74
Staining5: a spot of distinct colour
Caused by water 50, polluted water 82, corrosion 73 and graffiti 83
Blackening: caused by fire 78
5
Deposit : material accumulated on the surface; exogenic (dust, dirt) / endogenic (efflorescence)
Caused by people and animals 91
Soiling5: is the exogenic deposit of uncrystalline and unconsolidated material (e.g. dirt, soot…)
Caused by water 51, air pollution 79 and root 85
Encrustation: is the crust‐like deposit with good adherence of whitish and dense mortar constituents
Caused by salts (leading to crust formation) 58
Efflorescence: is the endogenic formation of soluble (white) salts deposited on surface by capillarity
Called crypto‐efflorescence if beneath the surface
Caused by salts 63
Visible biological growth (can be mistaken for a deposit)
Higher plants: building material is used as substratum; determine their type by comparing images
Caused by growth of trees, plants and grasses 109, mosses 110 and fern 105
Lower plants: sometimes mistaken for mosses; determine their type by comparing images
Algae5: lower plants consisting of single cells or groups of cells
Caused by algae growth 102 and lichens (a combination of algae and mould) 103
Mould5: eucariotical micro‐ and macro‐organisms which subsist on dead organic matter
Caused by mould growth 98
Transformation5 involves a chemical conversion of the surface material
Patina5: change of very thin surface layer protecting the underlying material from degradation
5
(Franke & Schumann, 1998)
9
15. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Caused by oxidation 86
Conversion: chemical alteration of the material (in combination with other damaging patterns)
Caused by moulds 99, water/air pollution 81, people/animals 90 and corrosion 70
Rotting: wood – (hemi‐) cellulose and lignin undergoes chemical alteration by microbes
Caused by water 52
Disintegration, loss of material or loss of cohesion
Caused by beetles on wood 93, caused by design renovation/reparation 31
Pitting: small pits formed by wind erosion 9
Crumbling5: adobe/bad brick ‐ Falling apart into small shapeless lumps
Caused by water (adobe) 67 and salt (brick) 56
Powdering5: brick – Loss of coherence starting from the surface resulting in fine powder
Caused by water 43 and salt 54
5
Sanding : mortar – Lack of cohesion due to granular disintegration
Caused by water 44, salt 55 and growth of mosses 111
Erosion5: abrasive wearing away of material creating a relief at the building material’s surface
Caused by wind 8 and water 41
Corrasion5: also called mechanical erosion, erosion by mechanical forces (use or impact)
Caused by an impact 16, mechanical forces during use 13 and polishing 15
Cut5: scratch (superficial loss of material), cut (line of division) or puncture (penetration)
Caused by mechanical impact 18
Layering subdivided into delamination and exfoliation
Delamination5: separation of an originally laminated material into one or more layers
Caused by salts 61
Exfoliation5: separation of an originally homogeneous material into one or more layers
Caused by salts 62
Spalling 5: Detachment of a relatively thick part of surface
Caused by overloading 3, earthquakes 22, salts 60 and fire 77
Scaling5: Scale‐like detachment of a relatively thin part of the surface
Caused by salts 59
Loss of cohesion concerns a type of deterioration where the material is no longer bond
Softening: The transformation of clay minerals changes adobe’s macrostructure by swelling
Caused by (excess of) water 68
10
16. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Loss of adhesion concerns the detachment of one material from another
Peeling5: Detachment due to loss of adherence between surface and paint film or plaster finish
Caused by water 47
Blistering5: Dome‐like detachment of part of surface by local swelling/expansion (paint on plaster)
Caused by water (transport) 48 and salt 66
Loss of bond5: Detachment of mortar or rendering from masonry… (relatively thick layer)
Caused by water 46, corrosion 72 and higher plant growth (roots) 108
Cracks5: Lines of division which will go completely through the material (> 0,15 mm)
Caused by overloading 2, settlement 6, use 12, impact 17, traffic 19, earthquake 21,
design error 35, water 57, diff. expansion 69, corrosion 71, fire 76 and plant growth 107
Crazing5: network cracking, a network of hair cracks < 0,15 mm
Caused by water 42 and salt 53
Deformation
Bulging5: Caused by water 45
Bending5: Caused by overloading 1, settlement 5, water 40
Leaning 5: Caused by settlement 4 and wind 7
Destruction: collapse or by purpose destruction of a (part of a) building
Caused by earthquake 20, design (combined with new construction) 30, fire 75
Risk
Error/risk Caused by error in the design process 33
Instability Caused by error in design 34, by beetles on wood 92 and higher plant growth 106
Wrong choice of material, technique or system in the design process can cause problems in the future
Caused by error in design 36
Incorrect use is introducing risks for the future
38
Intervention during reparation or the lack of intervention is a risk for future damages
39
11
17. Damage atlas of historical Cuenca, Ecuador (earthen materials)
4. Classification through building state [What is the actual state?]
For the conservator, historian, architect or engineer the actual state of the building is important for her
or his inspection. Some buildings are just renovated and every damage pattern is or structurally solved
or camouflaged by cosmetic repairs. There is of course a difference between extremely altered
dwellings and carefully restored houses ( 50).
Most of the buildings are in a phase of degeneration or consolidation, no interventions are planned.
Some major problems are clearly visible ( 74).
The most interesting observations are made in buildings under renovation. After removal of the surface
layers and ceilings, the structure is visible and it is possible to follow the repairs day by day and to talk
with the handicraftsmen ( 43).
5. Classification through severity [How bad or threatening is the damage?]
Most problems such as graffiti are luckily aesthetical or superficial. But these damage patterns can
evolve to more structural problems and indicate delicate places.
In a lot of other cases, the functionality of the material is lost by disintegration or a general loss of
bond. In the first case, the material is converted by chemical or biological attack often combined with
the presence of water. Material is also lost by different kinds of loss of adhesion (between 2 different
materials) or cohesion (in 1 material). It is an ‐ often slow – irreversible process and should be
prevented.
Cracks are commonly known as a structural and dangerous problem. Cracks often indicate structural
instability, high vulnerability for earthquakes and a future collapse. But also superficial cracks (e.g.
network cracking) can occur.
Structural problems such as deformation of structural construction elements, effects of fire and the
intentional destruction of historical buildings are the most unwanted damages.
The order of the case studies is using this classification, through increasing severity of the damaging
patterns and risks.
12
19. Damage atlas of historical Cuenca, Ecuador (earthen materials)
II. Case Studies
1. Aesthetical and surface problems
Damage: staining (discoloration)
83
Cause: chemical ‐ graffiti
Building: Iglesia San Blas ( 1), Pasaje Hortensia Mata ( 27)
Graffiti is typically an (intentional) human intervention, which causes (almost always) aesthetical
unwanted staining. Older graffiti can attract other new ones. The location of the affected building is an
important parameter; degraded neighbourhoods ( 49) or places of manifestation ( 118) are more
suffering.
Solution and Prevention: For plasters, paints and earthen layers, the best solution is to paint over the
graffiti ( 279). For other materials such as brick and natural stone ( 252), there are 3 different
preventive treatments possible (van de Weert, 2004). Epoxy or polyurethane pore filling resins are
permanent, long lasting and resistant but their high diffusion coefficient causes problems in materials
with high water content (such as adobe and bahareque). In contrary, an acrylic emulsion functions as
sacrificing and temporary layer which can be washed off together with the graffiti. It is very useful since
it is not hydrophobic and not preventing diffusion. A combination (semi permanent) is the optimal
solution, but is predicted as more expensive.
Damage: soiling
85
Cause: chemical – soot
Building: Hotel Victoria ( 95) and Catedral de la Inmaculada ( 25)
Although soot can cause unwanted blackening (especially on white painted chimeys, 262), no other
solution is given than washing or repainting. We should mention that candles, where the soot is a
witness ( 452), are a serious threat for the fire safety.
Damage: blackening (discoloration)
78
Cause: chemical ‐ fire
Building: Catedral de la Inmaculada ( 25), Edificio San Agustin ( 24)
This kitchen ( 1469) is blackened during use. During the June 2008 fire the building was partly
destroyed and this wall suffered from blackening ( 1040).
Solution and Prevention: Fire should be prevented as much as possible, but blackening is not a
threatening damage and will not evolve further.
14
21. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: deposit
Cause: biological – people and animals 91
Building: Casa de las Palomas ( 74)
Peoples and animals deposit such as faeces and bird nests ( 1105 and 1301) causes just aesthetical
damaging patterns in most cases. Prevention can diminish the future maintenance costs.
Damage: change of impression
94
Cause: biological – beetle / moth
Building: Iglesia de Santo Domingo ( 59)
Beetles can cause structural and disintegration problems, but in a lot of cases, just aesthetical problems
are found ( 340, 377).
Damage: visible lichens
103
Cause: biological – lichens (chlorophyllous)
Building: Casa de las Palomas ( 74)
Lichens exist in unpolluted environments, such as Ingapirca. They are not considered to cause damage.
Since they are grey, they are probably “Diploicia canescens”6 ( 315)
Damage: visible fern
105
Cause: biological – fern (chlorophyllous)
Building: Catedral de la Inmaculada ( 74)
Fern is a protected species and should not be removed therefore. It is not considered to cause damage
( 562).
6
http://www.lichenology.info/
16
23. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: visible algae
102
Cause: biological – algae (chlorophyllous)
Building: casa Arizaga Guzman ( 39)
These algae are greenish and grow in a shaded place (stairs between two high buildings). No direct sun
radiation and exposition to rainwater are contributing to the growth of algae here ( 246).
In this wet climate, there is a big risk for biological damage. The water source here is waterfall ( 167,
171, 172) and algae grow giving a black shine.
Further research: To be sure, it is recommended to look after the formation of gypsum crust on cement.
The black shine is than caused by air pollution.
Damage: visible higher plant (general)
109
Cause: biological – higher plants (chlorophyllous)
Building: El Chagra’s restaurant ( 207)
This small restaurant is a typical remnant of traditional houses with only a ground floor in the historical
city ( 218). Growth of higher plants is not harmful as such, but can be a witness of general lack of
maintenance of the whole building.
Damage: visible moss (higher plants)
110
Cause: biological – moss (chlorophyllous)
Most occurrences of mosses are not very dangerous ( 227), but they can secrete acids which are
harmful for mortars (see next case).
Damage: sanding of mortar
111
Cause: biological – moss (chlorophyllous)
Building: Catedral de la Inmaculada ( 25)
Mosses do not have genuine roots, but rhizoids that secrete acids which dissolve the mortar binder (
510). In very wet circumstances a relatively weak mortar can be turned into loose sand within one year
(Franke and Schumann, 1998).
Further research: Measuring the pH of the affected mortar can exclude other possible damaging
causes. A low pH in combination with visible mosses, proves the growth of rhizoids. Some mortar tests
were carried out in this building ( 25) (see page 34).
Damage: loss of bond
108
Cause: biological – higher plants (chlorophyllous)
Building: Iglesia de Santo Domingo ( 59)
Higher plants and its roots can cause serious damage growing between tiles and bricks ( 1315).
Maintenance is recommended to prevent higher reparation costs.
18
25. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: efflorescence and blistering/peeling
63, 66
Cause: physical – salts
Building: Catedral de la Inmaculada ( 25)
In the tomb of the main cathedral salts were found in the first half meter above the ground. Rising
damp is the damaging cause since the brick masonry is in contact with the ground. Next to (beautiful)
salt efflorescence ( 449), blistering and peeling of the paint were found as well ( 456 and 694).
Damage: efflorescence
63
Cause: physical – salts
Building: Hotel Victoria ( 95), Catedral de la Inmaculada ( 25)
Although initially designed to be finished with a layer of plaster and paint, naked masonry facades are
characterizing calle Larga. Due to inadequate eaves, rain water is washing the bricks regularly
introducing salt efflorescence after drying ( 257). Furthermore, after cleaning with water under high
pressure, salts crystallized on the domes of the main cathedral immediately ( 516, 2078, see page
34).
It is interesting to mention that salts were only found on bricks and not on earthen materials. However,
it is very probable that high salt contents are present and causing damages to adobe and bahareque.
Damage: peeling (loss of adhesion)
47
Cause: physical – water
Building: Casa de las Palomas ( 74)
Wood exposed to rain or a high content of moisture, will be damaged on its paint. It is known as an
aging process when no maintenance is carried out. Peeling ( 604) and blistering is found.
Solution and Prevention: In the case of wood, we can refer to a publication of Iowa University (1994).
Damage: blistering (loss of adhesion)
48
Cause: physical – water
Building: Iglesia de Deleg ( 228)
Blisters mostly occur on paints with low vapour diffusivity attached on earthen materials such as adobe
( 694). Water (coming from condensation or drying processes, rain infiltration…) is prevented from
evaporation by this paint and small spaces (bubbles) filled with vapour are growing. Paint is detached
from the substrate and if the spots burst (already visible here), more water is introduced behind the
paint. This is how the damaging pattern will evolve from innocent blisters to paint peeling and adobe
softening.
Prevention: Prevention is easy by using paint that allows vapour transport and by protection against
water contact (rain and other sources).
20
27. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: fading (discoloration)
49
Cause: physical ‐ water
Building: Casa de las Palomas ( 74)
The ceilings of the first floor of casa de las Palomas are made of zinc. Water infiltration from above
introduces discoloration of the paint on this metal sheets ( 600).
Damage: staining (discoloration)
50
Cause: physical ‐ water
Building: Iglesia de Santo Domingo ( 59), casa de las Posadas ( 50),
la Bella de Paris ( 221) and la casa del coco ( 41)
Red paint is washed out and deposited on the white paint on the wall ( 343).
685 of casa de las Posadas is made outside the project area. The road is in poor condition and on very
rainy days with heavy traffic water is splashed onto the façade (up to 2m high). The plaster on this
recently restored colonial house (adobe) is in good condition which is accredited to the choice of good
paint (allowing vapour diffusion).
Rain water infiltration in patios is also a known problem though in this case watering the plants can also
be an explanation ( 177).
The restoration of la Bella de Paris is in many ways very successful. However, dealing with rising ground
water is essential in the design. Inside walls are showing sever moisture stains immediately after
construction ( 410). Furthermore, rising damp is not solved by applying cement mortar on the lower
part of the wall ( 414). The ground water will rise above this plaster resulting in staining, loss of
bond… A cement layer can only serve as protecting layer against splashing.
Solution and Prevention: An impermeable membrane (or chiva) on the bottom is needed to stop the
water transport.
Damage: staining (discoloration)
73
Cause: chemical – metal corrosion
Building: Catedral de la Inmaculada ( 25)
The statue of Holy Santa Anna on the main cathedral is made of bronze and placed on brick masonry.
The green staining is caused by corrosion of this statue ( 479). The powdering of the bricks is not
correlated with the corrosion process (see page 32).
22
29. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: polishing
15
Cause: mechanical – use
Building: Casa de las Palomas ( 74)
Stairs or steps are the most popular place to find polishing. The frequent and abrasive use of natural
stone ( 592) has led to this shiny and slippery erosion. It is not considered as damage, but as a
predictable weathering process. Therefore, solutions and prevention are not an issue here.
Damage: change of impression
32
Cause: design – renovation/reparation
Building: Hotel Crespo ( 108), Casa de las Palomas ( 74)
The structural stability isn’t affected while introducing a new entrance in this hotel on calle Larga, but
other effects are not less important ( 238). The total concept and harmony are changed forever while
the functionality will probably increase. This operation gives a full view of the brick masonry that is
hidden behind plaster and natural stone in normal conditions.
Though lime plaster is frequently used without problems, the application of lime plaster is sometimes a
debatable intervention ( 2028). We refer to the thesis for a more detailed discussion.
Damage: loss of original materials
31
Cause: design – renovation
Building: Catedral de la Inmaculada ( 25)
It is thought that the light blue tiled domes – a symbol of Cuenca – of the main cathedral were
completely covered. A closer look is showing cracks in the tiles (see II.3) and absence of tiles in the
corners ( 504). Instead, we found cement mortar which, in first place, is only an aesthetical issue.
Damage: change of impression
32
Cause: design – renovation / reparation
Building: casa municipal de Gualaceo ( 245)
New constructions in historical valuable dwellings need to be designed very carefully. This colonial
building with typical patio and walkway is mutilated by a new concrete stair case which combines the
wrong choice of location, material and geometry. The stair case is removed again after structural
bearing problems ( 1638).
The renovation of the old municipality of Gualaceo included new materials and techniques instead of
the old ones, a doubtful new concrete stair case, the broadening of the entrance and the removal of
bearing walls. All these interventions caused cracks and instability and therefore we refer to the case on
page (see page 56).
24
31. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: change of impression
32
Cause: design – renovation / reparation
Building: Corte Superior de Justicia ( 19), casa del Coco ( 41) and
casa Sempertegui ( 119)
Patios are typical for the colonial style and are used in nearly every dwelling in the historical city. The
last decades, patios were covered by modern steel or wood constructions containing glass. The result
doesn’t have to be an architectural disaster. One can judge for its one whether the dome on the Court
was a good choice or not ( 21, 24, 22, 208). Mind the rebars to take the thrust and tensile forces in
the corners ( 24). Also casa del Coco has a covered patio of metal and glass ( 180).
Houses such as casa Sempertegui ( 838) and casa de las Palomas still have their original patio.
Research: Some research was done by prof. arch. Pacurucu (thesis about patios in Cuenca). The aerial
views by local promoter prof. arch. Cardoso make it possible to discover changes in time of patios… that
are invisible from the street.
26
33. Damage atlas of historical Cuenca, Ecuador (earthen materials)
2. Disintergration (surface to structural problems)
Damage: patina, spalling
65, 3
Cause: mechanical – overloading
Building: Incan ruins of Ingapirca, Cañar ( 211)
Different magmatic stone (igneous rock) types occur in this highly volcanic region. This volcanic rock
(magma didn’t reach the surface) is the intrusive diorite stone because the crystals are visible ( 320).
The green colour is a patina which indicates the presence and oxidation of copper. Due to stress
concentrations caused by tourists walking on the remnants of the ruin in combination with very small
or no joints, the stone was overloaded and developed cracks. A thick surface layer is pushed off finally (
320).
Further research: Biological growth is also a possible cause, but in that case the color is deposited onto
instead of into the surface. Organic materials can be identified by heating it with fire.
Damage: erosion, pitting
8, 9
Cause: mechanical – wind
Building: Iglesia de la Virgen del Rosario de Biblian ( 217)
This volcanic andesite stone developed small pits at the most vulnerable spots ( 333). The church is
situated on a steep hill where an intensive wind blows. This wind is the main cause of the erosion.
Damage: corrasion (= mechanical erosion)
13
Cause: mechanical – use
Building: Convento del Buen Pastor ( 3)
The corner of this adobe building is situated at calle Simon Bolivar and plazoleta de San Blas ( 73). The
corner is protected by the use of hard natural stone whereby only the painted cement plaster is
affected. At the corner of the Mariscal Sucre and General Torres street, it is more visible how natural
stones are used for corrasion protection ( 814).
Damage: mechanical
16
Cause: mechanical – impact
Building: casa Herederos Bravo Narea ( 32)
Making holes with a drill (impact) has led to the loss of cement plaster attached to brick masonry. This
example also illustrates that nearly every building in calle Simon Bolivar is made of brick ( 150).
28
35. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: staining, bulging, loss of bond
50, 45, 46
Cause: physical – water
Building: iglesia de Santo Domingo ( 59)
Water infiltration caused pull off of the paint ( 338). Moisture staining and bulging initiated this
damage to the surface layer. At first, this damage doesn’t seem to cause further harm. But other beams
suffered from structural instability after rotting of the end of the beam. At all time, contact of structural
wooden elements with water should be prevented. Above this beam, a tiled roof in bad condition is
found.
Damage: visible mould
98
Cause: biological ‐ mould (non‐chlorophyllous)
Building: iglesia Santo Domingo ( 59), iglesia San Francisco ( 114)
The fruitbody of a mould is visible on this painted wooden ceiling ( 344 and 756). The type of mould is
not known and further research is possible, but it is most probably the dangerous Serpula Lacrimans. It
is not easy to treat this wood‐attacking mould, careful removal is recommended.
Damage: rotting and bending
52, 40
Cause: physical ‐ water
Building: iglesia de Santo Domingo ( 59), casa Manosalvos ( 242)
The wooden floor of this church is constantly wet. The source is definitely the ground in direct contact
with the floor. The problem also exists where a cavity between the floor and the ground is made. This is
due to the absence of natural ventilation. Stress concentration by swelling of the wood7 introduced
deformation and bending of the elements ( 1318).
The wood seems to be in a constant wet condition, there is no cyclical drying and wetting. In
combination with the applied wax, there is no contact with the air which declares that there is – at first
surprisingly – no gradual rotting process is found. Other damages will certainly be introduced when
interventions to dry the floor are made.
In casa Manosalvos water penetration has severely deteriorated the wooden bearing structure (
1160). This picture is made at the basement beneath an overloaded and demolished balcony (see page
54).
Damage: disintegration of material
93
Cause: biological ‐ beetle
Building: casa municipal de Gualaceo ( 245)
Beetles were allowed to damage this wooden door as far as you can see through it now ( 615). The
structural stability was investigated in a wooden column ( 2101) by removing the affected parts and
estimating the remaining section. The pops and eggs became visible.
7
Water and high humidity result in frequent wetting and drying cycles, which promote swelling and cracking of
wood (Hughes et al, 2000)
30
37. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: sanding and erosion of mortar
44, 41
Cause: physical – water
Building: catedral de la Inmaculada ( 25), iglesia de San Blas ( 1)
The composition of the mortar in the main cathedral ( 1483) is investigated, as well as the
deterioration by mosses (by measuring the pH, see page 34). Where the rain can penetrate, the mortar
is leached or washed away ( 547, reservoir is flooded, see page 38). Water and soiling exist together.
The upper 4 layers are disjointed from the base structure; collapse is possible in the near future (
512). At some places whitish material, most likely precipitated calcite from dissolution of the mortar, is
deposited as well ( 46, mind also the drainage pipe).
Further research: Pointing hardness can be measured with the Schmidt Pointing Hardness tester (PM,
PROCEQ SA, Swiss) providing a measuring head having a cylinder‐like shape (8 mm) and rounded at the
measuring end (MDDS Compass, 2008).
The characterization of mortar can be done by determination of the dry density and porosity (RILEM
CPC 11.3 method) and by microscopical and petrographical analysis (covering optical microscopy, X‐ray
diffraction analysis, SEM‐EDAX…) to determine the type and volume fractions of aggregate, binder and
additions (Compass, 2008).
Damage: softening and erosion of adobe
68, 41
Cause: physical – water
Building: 200 and casa municipal de Gualaceo ( 245)
Adobe has to be protected against excess of water. The main reasons for water infiltration are rain,
splashing, rising damp or high relative humidity. This adobe wall ( 205) is protected against rain water
by brick layers at the top. Splashing and ground or street water rise is not prevented. The deterioration
starts from the foot by softening and erosion of the adobe. In most cases, the foot is protected by
stones, bricks, tiles or a combination ( 673).
Another threat for adobe are the built in drainage pipes. The risks are high and the damage is always
big and the reparations are expensive. In this house, the problem was discovered after softening and
erosion of the adobe wall ( 1483).
32
39. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: conversion
90
Cause: biological – people and animals
Building: catedral de San Blas ( 1), monasterio de Nuestra Señora de
la Concepción ( 99)
People in Cuenca have the bad habit to pee where (small corners are preferred and churches are not
skipped) and when they want. This man was caught on picture in action ( 44). Afterwards, the
powdered brick and eroded mortar is clear together with the remnants of a cross. Also the pavement is
renewed, but affected again. Only the river stone is inert to this attack ( 48).
Prevention: The problem can be solved by installing public toilets or – more effective – by constructing
crosses on high‐risk places ( 270).
Damage: powdering of brick, erosion of mortar
43, 41
Cause: physical – water
Building: catedral de la Inmaculada ( 25)
Regularly rain water is standing in the reservoir, bricks and mortar are severely attacked ( 513, 514).
The whitish deposit can be efflorescence of salts, but also precipitated calcite from the dissolved
mortar.
Powdering of brick will happen faster when the firing has found place at low temperature. This means
that there was only little vitrification and the material was not completely converted into the necessary
glass‐like amorphous solid. The clay particles are only loosely bonded and contact with water will
dissolve them and wash them away.
Damage1: powdering of brick, erosion of mortar
43, 41
Cause1: physical – water
Damage2: efflorescence
63
Cause2: physical – salt
Damage3: erosion
8
Cause3: mechanical – wind
Building: catedral de la Inmaculada ( 25)
This wall (back of the pedestal of Saint Anna’s statue on the main cathedral) is affected clearly by rain
and wind erosion ( 554). Salt efflorescence is also visible and joining the deterioration process. Don’t
mind the green stain at the right; they are caused by corrosion of the statue. The remark on brick
powdering and vitrification in the previous case is also valid in this case.
Damage: scaling (exfoliation), crumbling, efflorescence
59, 56, 63
Cause: physical – salt
Building: iglesia de Santo Domingo ( 59)
The bottom of these tiles is affected by penetration of rain water. Small surface layers are scaled, the
tile is crumbling and efflorescence of the deteriorating salts is visible on the tiles and on the mortar (
1227).
34
41. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: Erosion (mortar), powdering (brick), soiling
41, 43, 51, 79
Cause: Combination of air pollution, rain and wind
Building: Catedral de la Inmaculada ( 25)
Some roofs are made of brick masonry comprising brick and mortar (e.g. 59 and 25). The roof of la
catedral de la Inmaculada is entirely exposed to rain since it is unprotected. Mark the difference in
exposure and therefore also brick vulnerability between vertical walls and, in our case, horizontal roofs.
On the other hand, air pollution is a major problem due to the burning of fossil fuels of traffic.
Compared to other South‐American cities (Quito, Sao Paulo, Santiago…) the problem is less severe in
this smaller and relatively isolated city. Also the high altitude which allows lower octane fuels and thus
lower aromatic components is an advantage. But the problem is bigger than in Europe or other
developed countries. Use of leaded oil, more limited refinery capabilities and not adopted cars are
leading to dangerous exhaust and bad air quality. SO2 and NOx are the primary and most harmful
components (Sollars & Gee, 1997).
First the mortar is leached out; afterwards the bricks can start powdering but generally remain in good
condition ( 482). The influence of orientation of wind and rain is clear ( 1484 where the left side is
exposed and severely attacked unlike the right side). Typical black soiling is occurring at both the bricks
and joints ( 482).
Research: The pH of the soiling deposit is measured ( 1729, resulting in pH 6). A simple pull‐off test is
carried out to determine the state of the bricks by the cohesion and tensile strength ( 2079). Both
tests are carried out by arch. Wilson Pacurucu (Universidad de Azuay). It is also recommended to
investigate the damaging mechanisms more in deep. The concentration of different contaminants in
the air and rain as well as the engine exhausts can be a future thesis topic.
Solution and Prevention: Although soiling is not a structural damage, it is unwanted on one of the
symbols of the city. Cleaning with water under high pressure seems to be the only possibility but not
without danger ( 478, see next case study). Soiling can be prevented on different levels. On national
level legislations for better oil refinement and cars is needed, on local level the city center can be made
car free. Since these long term options are not likely to get implemented soon, prevention with surface
treatments should be considered.
Damage: Incorrect intervention
39
Cause: Maintenance
Building: Catedral de la Inmaculada ( 25)
Since the black soiling is unwanted, high‐pressure water treatment is used to successfully remove it (
478). It is likely that the soiling served as protecting layer for the bricks against weathering processes
which is now lost. Furthermore the porous bricks are extremely wet and due to the wet climate, it is
impossible to dry profoundly (especially for the second and slow drying period of a brick). Efflorescence
( 2087 and 63) is proving this problem. The planned application of hydro repellent will have a
disastrous effect. The water will evaporate at the interior side of the dome, causing moisture spots and
spalling of the plaster since no effective outside repellent can have a higher diffusion coefficient than
the plaster. The solution is a (temporary) shelter and (natural) ventilation to allow drying.
36
43. Damage atlas of historical Cuenca, Ecuador (earthen materials)
Damage: loss of bond
46
Cause: physical – water
Building: convento de Buen Pastor ( 3), casa de las Palomas ( 74)
Problems with drainage and eaves are very common. The main reasons are broken tiles or drainage
pipes. Traditionally the eaves are built up from wood and finished with reed (carrizo) and (cement or
lime) plaster (see page 42). When (rain) water infiltrates, these materials cannot cope with this; the
reed starts rotting (presence of water and oxygen) and the plaster softens and falls of under its own
load. The examples are plentiful and diverse ( 72, 632).
Damage 1: loss of bond
46
Cause 1: physical – water
Damage 2: bending (deformation)
1
Cause 2: mechanical – overloading
Building: casa de las Palomas ( 74)
Also inside the dwellings, water infiltration causes harm to traditional ceilings from wood, reed and
plaster ( 2140). The plaster comes off and, when badly repaired with cement, suffers from
overloading ( 2160).
Damage 1: loss of bond
46
Cause 1: physical – water
Damage 2: no intervention
39
Cause 2: design – maintenance
Building: casa Eljuri ( 16) and Vieja hospital de Gualaceo ( 247)
Brick ( 102 and other examples 152 and 301).
It is not sure if there was ever an earthen layer (revoque) applied on this bahareque side wall ( 204).
Anyway this protection should have been applied, especially when such small eaves (corrugated steel
plates) are found. Water washes away the earthen layer when exposed to rain. In this case, the primary
and secondary structure of bahareque is visible.
It seems that this bahareque wall was filled. The protecting earthen layer is lost due to a lack of
maintenance. Rain water washed the exposed earthen layer away ( 1956).
38
45. Damage atlas of historic
cal Cuenca, E
Ecuador (ear
rthen materials)
Damage 1: Choice off material and technnique
36
Cause 1: Design
Damage 2: Staining, loss of bond 50, 46
Cause 2: Physical –
– water
Building: Catedral dde la Inmaaculada ( 25)
The rain fro om the dome es is first collected in triangle reserv voirs ( 17447 and diago onal arrows o on plan),
but these a getting o
are obstructed r regularly resulting in undesired water flowing ( 550). Aft terwards
canals of ro tiles, bricks and cem
oof ment mortar ( 551 and vertical ar
r rrows on pla lead to drainage
an) d
pipes at the e border. Als
so extra rain water from the bows ru uns through tthese underdimensioned d canals.
With both t reservoirs ( 493) and the canals ( 531 and 536) sta
the aining and s
spalling of th inside
he
plaster is occcurring after floods and due to bad c choice of ma aterial.
Figuur 1: R
Roof plan of cat
tedral de la Inm
maculada with indications of ra
ain water flow (
(adapted from Cardenas & Cordero)
40