Cement carbonation: can it help or hinter CO2 storage? - presentation given by Chris Rochelle at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Cement carbonation: can it help or hinter CO2 storage? - presentation given by Chris Rochelle in the Borehole and Near Well Processes session at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
torm water normally refers to any precipitation that occurs during a rainstorm. At times, the term is used to specifically identify snowmelt or any other type of water that is not readily absorbed into the ground. In cities, this type of water is sometimes known as runoff water, referring to rain that is routed into sewage systems by way of drains. One of the major concerns with storm water today is the potential for polluting bodies of water as the runoff makes its ways to rivers, streams, and lakes.
Basic equations related to the selection of protective paints according to el...Chris Rodopoulos
Paint systems or coatings are considered as the ultimate protection system against concrete carbonation and
against the subsequent probability of reinforcement corrosion. In this article the author is trying to explain the
use of protective paint systems and the equations describing the resulted degree of protection, making reference
to fundamental parameters controlling the carbonation process and speed. The article is written in such way as
to assist engineers involved with the protection of concrete structures either during the design or rehabilitation
phase. Examples referring to the particular environment of Greece are also included to enhance assistance to
the reader.
torm water normally refers to any precipitation that occurs during a rainstorm. At times, the term is used to specifically identify snowmelt or any other type of water that is not readily absorbed into the ground. In cities, this type of water is sometimes known as runoff water, referring to rain that is routed into sewage systems by way of drains. One of the major concerns with storm water today is the potential for polluting bodies of water as the runoff makes its ways to rivers, streams, and lakes.
Basic equations related to the selection of protective paints according to el...Chris Rodopoulos
Paint systems or coatings are considered as the ultimate protection system against concrete carbonation and
against the subsequent probability of reinforcement corrosion. In this article the author is trying to explain the
use of protective paint systems and the equations describing the resulted degree of protection, making reference
to fundamental parameters controlling the carbonation process and speed. The article is written in such way as
to assist engineers involved with the protection of concrete structures either during the design or rehabilitation
phase. Examples referring to the particular environment of Greece are also included to enhance assistance to
the reader.
Mechanism of different chemical attacks in a concrete like chloride attack, sulfate attack , which causes corrosion and spalling. Other reactions are alkali aggregate reaction , alkali silica reaction in concrete etc.
Alok Singh and Divya Prakash Tiwari. “Effect of Carbon Leaching in a Building Structure” United International Journal for Research & Technology (UIJRT) 1.1 (2019): 34-38.
Mechanism of different chemical attacks in a concrete like chloride attack, sulfate attack , which causes corrosion and spalling. Other reactions are alkali aggregate reaction , alkali silica reaction in concrete etc.
Alok Singh and Divya Prakash Tiwari. “Effect of Carbon Leaching in a Building Structure” United International Journal for Research & Technology (UIJRT) 1.1 (2019): 34-38.
IRJET-Study of Strength Parameter of Concrete by Replacing Cement by Flyash ...IRJET Journal
J.Karthik, P.Jagannathan "study of strength parameter of concrete by replacing cement by flyash enriched with microbial agents", International Research Journal of Engineering and Technology (IRJET), Volume2,issue-01 March 2015.e-ISSN:2395-0056, p-ISSN:2395-0072. www.irjet.net,published by Fast Track Publications
Abstract
In construction industry, Concrete is a most widely used construction material and cement is the only manufactured material and other ingredients like coarse aggregate, fine aggregate and water are natural resources. In manufacturing of cement 800 to 900 kg of CO2 is emitted per ton ordinary Portland cement production and it amounts to 5% of the annual anthropogenic global CO2 production, which results in global warming. To reduce the harmful effects of CO2 and to save the power, in this project it is decided to use bacteria in concrete and to enhance its properties of hardened concrete. For this purpose Bacillus sphaericus bacteria is chosen based on previous works done. The design mix is made to produce M40 grade concrete. The ingredients for concrete are tested. The bacterial culture is made and growth curve is prepared. Calcium carbonate precipitation is identified by scanning electron microscopy results and elements present in the bacterial culture is analyzed by energy dispersive X-ray spectroscopy results. It is proposed to partial replacement of cement by fly ash enriched by bacteria and to test the strength of concrete at different ages.
Course on Regulation and Sustainable Energy in Developing Countries - Session 10Leonardo ENERGY
Session 10 will focus on how actual energy efficiency improvements can be achieved in organisations of different sizes. The presentation will start with a discussion of the status of energy efficiency in major developing countries. A variety of tools for working towards higher energy efficiency will be discussed, including benchmarking, energy audits, process analysis, and energy management schemes.
Kornelis Blok (1956) studied experimental physics at Utrecht University and received a Ph.D. degree in 1991 on a thesis ‘On the Reduction of Carbon Dioxide Emissions’. In 1984 he was one of the founders of Ecofys, where he is now Director of Science. Dr. Blok has extensive research and consultancy experience in the field of energy efficiency improvement and clean energy production. He played an important role in the development of European energy policies and international climate policies and has worked in many countries around the globe. He is also with Utrecht University, where he holds a professorship in Sustainable Energy. He is supervising the master programme Energy Science. He authored and co-authored 90 articles in peer-reviewed scientific journals, several books and over 200 research reports, conference contributions and other scientific publications. He was a lead author for the Third and Fourth Assessment Reports of the Intergovernmental Panel on Climate Change, the institution that was award the Nobel Peace Prize in 2007. With his company he won the Erasmus award for the most innovative company of the Netherlands in 2008.
Flexural Behavior of Fibrous Reinforced Cement Concrete Blended With Fly Ash ...Ijripublishers Ijri
Research for high strength and better performance characteristics of concrete are leading the researchers for developing
better structural concrete and new structural application techniques.New types of concrete have come in application
in construction by using supplementary cementitious materials like fly ash, silica fume metakaoline, nanosilica and
other materials using various reinforcing materials like different type of fibers for achieving better performance for the
composite compared to the normal concrete.In the present experimental investigation, a mix design for high strength
concrete of M80 is tried using triple blending technique with ternary blend of metakaoline and fly ash as partial replacement
by weight of cement at various blended percentages ranging between 10%-40% with steel fibers having aspect ratio
of 50. The various percentages of steel fibers to be tried are 0%, 0.5% and 1% by volume of concrete. The workability is
measured for its consistency using compaction factor method.The project aims at finding the optimum replacement of
cement by fly ash and metakaoline from which maximum benefit in various strengths and workability of the mix can be
obtained. The results of fiber reinforced specimens with various percentages of ternary blend are compared with control
specimens to study the behaviour of FRC properties with various percentages of the blends as partial replacement by
weight of cement. Sufficient number of cubes and beams will be cast. The case specimens will be tested for the change
in compressive and flexural strengths at 7 & 28 days for M80 concrete.It is expected that the results of present investigation
would help to arrive at the optimum percentages of the admixtures and fibre reinforcement to achieve optimum
strength properties of the composite.
The green benefits of cement and concrete are hidden due to the vast quantities consumed around the globe. Therefore, despite the low carbon footprint, cement and concrete are often given low marks for sustainability. The presentation attempts to set the record straight.
Chanderpur Group has the more over 50 years of experience to supplies cement plant manufacture technology included with ball mill, EPC cement plant, renewal power plant, bulk blending fertilizer.
Similar to Cement carbonation: can it help or hinter CO2 storage? - presentation given by Chris Rochelle at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014
Challenges for Concrete. Presenterat av professor Karen Scrivener, vinnare av Swedish Concrete Award 2015, på Träffpunkt Betong 15 den 7 oktober i Stockholm.
11 mechanisms of corrosion of structural concrete and how to stop themMichael Aldred
There are ONLY 11 mechanisms of corrosion of reinforced structural concrete. There is only ONE common denominator of the cause of all 11 mechanisms. This presentation demonstrates these facts. This presentation demonstrates the ONLY time proven way to STOP all 11 mechanisms, for the life of the concrete
Presentation given by Paul Fennell of Imperial College London on "The Integration of Power Generation, Cement Manufacture, Biomass Utilisation and Calcium Looping." at the Alternative CCS Pathways Workshop, Oxford Martin School, 27 June 2014
This presentation was delivered as part of a two day Lime Kiln repairs and “Hot” lime mix Workshop on the 1st & 2nd May 2013, at Russborough House, near Blessington, Co. Wicklow.
Feedback and comment from the discussions and experiences shared during the two day workshop have been added to the presentation.
In line with the aims and objectives of The Building Limes Forum, the purpose of the training day and this presentation was to share understanding and encourage expertise in the use of building limes.
Infomatica, as it stands today, is a manifestation of our values, toil, and dedication towards imparting knowledge to the pupils of the society. Visit us: http://www.infomaticaacademy.com/
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CCUS Roadmap for Mexico - presentation by M. Vita Peralta Martínez (IIE - Electric Research Institute, Mexico) for the UKCCSRC, Edinburgh, 13 November 2015
Advances in Rock Physics Modelling and Improved Estimation of CO2 Saturation, Giorgos Papageorgiou - Geophysical Modelling for CO2 Storage, Leeds, 3 November 2015
Numerical Modelling of Fracture Growth and Caprock Integrity During CO2 Injection, Adriana Paluszny - Geophysical Modelling for CO2 Storage, Leeds, 3 November 2015
Assessing Uncertainty of Time Lapse Seismic Response Due to Geomechanical Deformation, Doug Angus - Geophysical Modelling for CO2 Storage, Leeds, 3 November 2015
Modelling Fault Reactivation, Induced Seismicity, and Leakage During Underground CO2 Injection, Jonny Rutquvist - Geophysical Modelling for CO2 Storage, Leeds, 3 November 2015
Pore scale dynamics and the interpretation of flow processes - Martin Blunt, Imperial College London, at UKCCSRC specialist meeting Flow and Transport for CO2 Storage, 29-30 October 2015
Passive seismic monitoring for CO2 storage sites - Anna Stork, University of Bristol at UKCCSRC specialist meeting Geophysical modelling for CO2 storage, monitoring and appraisal, 3 November 2015
Multiphase flow modelling of calcite dissolution patterns from core scale to reservoir scale - Jeroen Snippe, Shell, at UKCCSRC specialist meeting Flow and Transport for CO2 Storage, 29-30 October 2015
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Research Coordination Network on Carbon Capture, Utilization and Storage Funded by National Science Foundation in USA - A.-H. Alissa Park, Columbia University - UKCCSRC Strathclyde Biannual 8-9 September 2015
Computational Modelling and Optimisation of Carbon Capture Reactors, Daniel Sebastiá Sáez, Cranfield University - UKCCSRC Strathclyde Biannual 8-9 September 2015
Effective Adsorbents for Establishing Solids Looping as a Next Generation NG PCC Technology, Hao Liu, University of Nottingham - UKCCSRC Strathclyde Biannual 8-9 September 2015
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Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
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This document will discuss each of the underlying technologies to create and implement an e- commerce website.
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The Benefits and Techniques of Trenchless Pipe Repair.pdf
Cement carbonation: can it help or hinter CO2 storage? - presentation given by Chris Rochelle at the UKCCSRC Cardiff Biannual Meeting, 10-11 September 2014