The document consists of multiple repetitive copyright notices by the BSI (British Standards Institution) dated Fri Sep 21 10:05:56 2001 through Fri Sep 21 10:06:07 2001, with each notice indicating an "Uncontrolled Copy".
This document discusses techniques for underwater concrete construction. It covers topics such as concrete specifications, laying techniques using methods like tremie, bucket placing, and pump placement. Tremie placement is described as the standard method, involving pumping concrete through a watertight pipe. Concrete mixes for tremie placement require workability additives and a maximum aggregate size of 20mm. Repair works are also discussed, involving defining the repair area, cleaning, haulage, inspection, and environmental considerations.
Introduction to Accelerated Carbonation - Robert Williams (Carbon8 Systems Ltd)ecoconnect
This document discusses using carbon dioxide (CO2) gas as a resource to treat industrial wastes and contaminated soils through a process called accelerated carbonation (ACT). ACT uses the natural reactivity of materials like calcium and magnesium to CO2 to solidify wastes and produce construction materials like aggregates. The document outlines the history of using CO2 to treat cement and lime, drivers like landfill reduction, and Carbon8's development of ACT to produce aggregates and building materials at an industrial scale while reducing CO2 emissions.
Seeking assignments in Production,process engineering in high pressure die casting of aluminium and zinc alloys,having 23 years of experience in the same field.
This document discusses the history and properties of concrete. It begins with an introduction to concrete as a strong, moldable construction material made of cement, sand, aggregate, and water. It then provides a brief history of concrete, including early uses in ancient Israel and Serbia, as well as the Romans' widespread use of concrete in structures like the Colosseum and Pantheon. Finally, it discusses advantages of concrete like durability and fire resistance, as well as future trends including geopolymer concrete and cement replacements.
This document discusses ready mix concrete. It defines ready mix concrete as concrete whose components are proportioned off-site and delivered by truck in a ready-to-use condition. It provides a brief history of ready mix concrete, noting it was first used in the US in 1913 and established in Bangladesh in the 1990s. It also lists some of the major ready mix concrete companies operating in Bangladesh and discusses the manufacturing process and transportation considerations for ready mix concrete.
The document discusses cement/fly ash/metakaolin ternary blends and their effects on compressive strength and economics of mortars. It describes an experiment that tested different blend ratios and measured compressive strength and costs. The experiment found that fly ash lowers water demand in blends and metakaolin alone provides higher strength than in blends. Using 5% metakaolin reduces the cost of mortar by 5.35% per psi of compressive strength.
This British standard document provides guidance on the normal curing of concrete test specimens at 20 degrees Celsius, outlining the required apparatus, procedures, age of specimens, and reporting requirements. It specifies that specimens be cured in a water tank or moist air environment at 20 +/- 2 degrees Celsius and details information that must and can be included in test reports. The document also references other British standards related to sampling, making, and testing concrete.
This document discusses techniques for underwater concrete construction. It covers topics such as concrete specifications, laying techniques using methods like tremie, bucket placing, and pump placement. Tremie placement is described as the standard method, involving pumping concrete through a watertight pipe. Concrete mixes for tremie placement require workability additives and a maximum aggregate size of 20mm. Repair works are also discussed, involving defining the repair area, cleaning, haulage, inspection, and environmental considerations.
Introduction to Accelerated Carbonation - Robert Williams (Carbon8 Systems Ltd)ecoconnect
This document discusses using carbon dioxide (CO2) gas as a resource to treat industrial wastes and contaminated soils through a process called accelerated carbonation (ACT). ACT uses the natural reactivity of materials like calcium and magnesium to CO2 to solidify wastes and produce construction materials like aggregates. The document outlines the history of using CO2 to treat cement and lime, drivers like landfill reduction, and Carbon8's development of ACT to produce aggregates and building materials at an industrial scale while reducing CO2 emissions.
Seeking assignments in Production,process engineering in high pressure die casting of aluminium and zinc alloys,having 23 years of experience in the same field.
This document discusses the history and properties of concrete. It begins with an introduction to concrete as a strong, moldable construction material made of cement, sand, aggregate, and water. It then provides a brief history of concrete, including early uses in ancient Israel and Serbia, as well as the Romans' widespread use of concrete in structures like the Colosseum and Pantheon. Finally, it discusses advantages of concrete like durability and fire resistance, as well as future trends including geopolymer concrete and cement replacements.
This document discusses ready mix concrete. It defines ready mix concrete as concrete whose components are proportioned off-site and delivered by truck in a ready-to-use condition. It provides a brief history of ready mix concrete, noting it was first used in the US in 1913 and established in Bangladesh in the 1990s. It also lists some of the major ready mix concrete companies operating in Bangladesh and discusses the manufacturing process and transportation considerations for ready mix concrete.
The document discusses cement/fly ash/metakaolin ternary blends and their effects on compressive strength and economics of mortars. It describes an experiment that tested different blend ratios and measured compressive strength and costs. The experiment found that fly ash lowers water demand in blends and metakaolin alone provides higher strength than in blends. Using 5% metakaolin reduces the cost of mortar by 5.35% per psi of compressive strength.
This British standard document provides guidance on the normal curing of concrete test specimens at 20 degrees Celsius, outlining the required apparatus, procedures, age of specimens, and reporting requirements. It specifies that specimens be cured in a water tank or moist air environment at 20 +/- 2 degrees Celsius and details information that must and can be included in test reports. The document also references other British standards related to sampling, making, and testing concrete.
The document contains a shop drawing with details of a building structure including dimensions of different structural elements like beams and columns. It provides layout drawings showing the locations of these structural elements. It also includes schedules listing the types, sizes and lengths of reinforcing steel bars and meshes used.
This document provides an overview of concrete technology. It discusses the composition of concrete including cement, water, and aggregates. It also describes the process of making concrete including batching, mixing, transporting, placing, compacting, curing, and finishing. Batching can be done by volume or weight, with weight batching being more precise. Concrete is mixed either by hand or using stationary mixers and is transported using various methods before being placed, compacted to remove air, and cured to allow further hydration. Finishing operations are the last steps to achieve the required surface.
1. Concrete repair refers to modifying damaged concrete structures to restore their load-bearing capacity and durability.
2. Common repair techniques include removing damaged concrete and replacing it with new concrete.
3. Shotcreting is a repair method that projects a concrete mixture at high velocity to repair large areas or strengthen structures. It produces a dense, homogeneous material without formwork.
This document provides an introduction to concrete, discussing its history, composition, properties, and manufacturing process. Concrete has been used widely in construction for millennia, forming the basis of modern infrastructure like roads, buildings, and dams. It is a composite material consisting of aggregates like sand and stone bound together by a hardened cement matrix. The cement produces a crystalline structure when mixed with water that binds the aggregates and provides strength and durability to the final concrete.
Portland cement is made through a precise manufacturing process involving mining and grinding raw materials like limestone and clay, heating them in a kiln to form clinker, and then finely grinding the clinker. There are two main processes - the dry process mixes dry raw materials before heating while the wet process mixes materials into a slurry. Both processes involve heating materials to high temperatures to form cement compounds, cooling the clinker, and then very finely grinding it along with gypsum. The ground cement is then stored in silos and packaged for distribution.
Thermiculite sheet gaskets are comprised of chemically and thermally exfoliated vermiculite reinforced with a metallic core. Vermiculite demonstrates better chemical resistance and superior high temperature sealing characteristics compared to graphite. Independent testing showed Thermiculite maintains its integrity and sealing properties at temperatures up to 870°C, whereas graphite starts to lose stress retention above 340°C due to oxidation. Thermiculite is not affected by oxidation and can provide an effective seal even at 500°C, making it suitable for demanding high temperature applications.
This document outlines the method statement for concrete work and formwork for the construction of buildings at Cai Mep International Container Terminal. It details the procedures for rebar work, formwork installation, concrete casting, curing, and formwork removal. The scope of work includes construction of a security office, amenity block, container freight station, and container gate using reinforced concrete and steel structures. Diagrams in the appendix illustrate the casting concrete and formwork installation methods. Safety controls and compliance with technical specifications and drawings are also addressed.
expanded polystyrene technology in constructionvutkuri Keerthi
This document provides a technical seminar report on the use of expanded polystyrene technology in construction. It begins with an abstract that discusses how construction techniques have improved over time to use lighter materials and faster construction methods. One such technique is the use of expanded polystyrene (EPS) in construction, which provides benefits like less weight, cost effectiveness, faster construction, insulation, and more sustainable use of resources. The document then provides a table of contents and list of figures before diving into chapters that discuss EPS properties, applications, installation methodology, case studies, and conclusions.
Gutter replacement service and the installation process is the task which should be done accurately for the proper water redirection purpose. the slides here shows the step by step gutter installation process
A Study on Properties of Self-Curing Concrete using Polyethylene Glycol-400IRJET Journal
This document summarizes a study on the properties of self-curing concrete using Polyethylene Glycol-400 (PEG-400). The study investigated the use of PEG-400 as a self-curing agent at dosages of 0%, 0.5%, 1%, and 2% by weight of cement. Tests were conducted on M20, M30, and M40 grade concrete to evaluate compressive strength, workability, and water retention at curing ages of 7, 14, and 28 days. The results showed that PEG-400 improved the water retention capacity and increased compressive strength compared to conventionally cured concrete. A dosage of 1% PEG-400 was found to be optimal for M20
Piling work method statement cm- ms- bw - 002Minh Bui Si
This document provides a method statement for pile driving works for buildings at the Cai Mep International Container Terminal project in Vietnam. It outlines the scope of work, which includes supplying and driving precast concrete piles (PHC piles) and solid concrete piles. The document describes the equipment and labor to be used, including pile hammers, cranes, and a workforce of 33 people. It also provides details on pile fabrication, transportation, storage, driving procedures, quality control checks, safety measures, and appendices with supporting documents.
The document provides details on staircases including:
1) Types of staircases such as straight, dog-legged, and spiral.
2) Requirements for staircase dimensions including tread, rise, and pitch.
3) Detailing principles for steel in staircases including main steel, distribution steel, and anchorage.
4) An example of detailing a dog-legged staircase with given dimensions and reinforcement details.
Quality awareness of concrete cube casting and testing must be done to achieve the desired strength of that particular grade of concrete and for the stability of the structure.
Implementation of magnetized water to improve the properties of concreteIAEME Publication
This document summarizes a study that examined the properties of fresh and hardened concrete made with magnetized water versus tap water. Magnetized water was produced by passing tap water through devices generating magnetic fields of 6000 and 9000 Gauss. Concrete mixtures were tested with different water types, cement contents, and aggregate proportions. Test results showed that in most cases, concrete made with magnetized water exhibited higher slump and strengths compared to tap water concrete, with increases up to 35% higher slump and 20% higher compressive strength. With the same slump and strength requirements, cement content could be reduced by 7.5% using magnetized water.
This document provides design calculations for the seismic and wind loading of an oil storage tank. It calculates the overturning moment due to seismic forces and wind forces acting on the tank. It then calculates the required strength of the tank shell, bottom plate, and anchorage to resist these overturning forces, taking into account the weight and distribution of the tank, contents, roof and supporting structures. Design requirements including allowable stresses and load factors are considered to ensure the structural integrity of the tank under the specified loading conditions.
The document discusses using marble and quarry dust as additives in concrete to produce "green concrete". It describes how these industrial wastes can be used to replace natural resources like sand in concrete, reducing costs and environmental impacts. The document outlines the physical and chemical properties of the wastes and how they were characterized. It also describes mix designs used to replace fine aggregate with the wastes and the results of tests on hardened concrete, which showed improved strength and durability over conventional concrete.
Using fly ash as replacement of cement & aggregatehsaam hsaam
This document presents a thesis study on utilizing fly ash as a partial replacement for cement and fine aggregates in concrete. The study was conducted by Mohamad Rkein under the supervision of Professor Sabaratnam Prathapan and Associate Professor Krishnan Kannoorpatti. The study aims to determine the feasibility and effects on mechanical properties of using fly ash to replace cement and fine aggregates in concrete mixtures. Tests were conducted on workability and compressive strength of concrete with varying replacement levels of fly ash at 7, 28, and 56 days. The results indicate that fly ash can effectively be used as a partial replacement material in concrete and may provide benefits to strength properties and reduce environmental impacts.
Toward green concrete for better sustainable environmenthsaam hsaam
This document discusses efforts to develop green concrete as a more sustainable building material. It begins by noting that cement production currently accounts for 8-10% of global CO2 emissions. The document then discusses various approaches researchers have taken to reduce the environmental impacts of concrete, including substituting fly ash for cement, using recycled materials, and nanoengineering cement mixtures to improve performance. It emphasizes that green concrete must use waste materials, have a sustainable production process, and perform well over its lifetime. The document surveys cleaner cement production technologies and argues green concrete can help all three pillars of sustainability.
The document contains a shop drawing with details of a building structure including dimensions of different structural elements like beams and columns. It provides layout drawings showing the locations of these structural elements. It also includes schedules listing the types, sizes and lengths of reinforcing steel bars and meshes used.
This document provides an overview of concrete technology. It discusses the composition of concrete including cement, water, and aggregates. It also describes the process of making concrete including batching, mixing, transporting, placing, compacting, curing, and finishing. Batching can be done by volume or weight, with weight batching being more precise. Concrete is mixed either by hand or using stationary mixers and is transported using various methods before being placed, compacted to remove air, and cured to allow further hydration. Finishing operations are the last steps to achieve the required surface.
1. Concrete repair refers to modifying damaged concrete structures to restore their load-bearing capacity and durability.
2. Common repair techniques include removing damaged concrete and replacing it with new concrete.
3. Shotcreting is a repair method that projects a concrete mixture at high velocity to repair large areas or strengthen structures. It produces a dense, homogeneous material without formwork.
This document provides an introduction to concrete, discussing its history, composition, properties, and manufacturing process. Concrete has been used widely in construction for millennia, forming the basis of modern infrastructure like roads, buildings, and dams. It is a composite material consisting of aggregates like sand and stone bound together by a hardened cement matrix. The cement produces a crystalline structure when mixed with water that binds the aggregates and provides strength and durability to the final concrete.
Portland cement is made through a precise manufacturing process involving mining and grinding raw materials like limestone and clay, heating them in a kiln to form clinker, and then finely grinding the clinker. There are two main processes - the dry process mixes dry raw materials before heating while the wet process mixes materials into a slurry. Both processes involve heating materials to high temperatures to form cement compounds, cooling the clinker, and then very finely grinding it along with gypsum. The ground cement is then stored in silos and packaged for distribution.
Thermiculite sheet gaskets are comprised of chemically and thermally exfoliated vermiculite reinforced with a metallic core. Vermiculite demonstrates better chemical resistance and superior high temperature sealing characteristics compared to graphite. Independent testing showed Thermiculite maintains its integrity and sealing properties at temperatures up to 870°C, whereas graphite starts to lose stress retention above 340°C due to oxidation. Thermiculite is not affected by oxidation and can provide an effective seal even at 500°C, making it suitable for demanding high temperature applications.
This document outlines the method statement for concrete work and formwork for the construction of buildings at Cai Mep International Container Terminal. It details the procedures for rebar work, formwork installation, concrete casting, curing, and formwork removal. The scope of work includes construction of a security office, amenity block, container freight station, and container gate using reinforced concrete and steel structures. Diagrams in the appendix illustrate the casting concrete and formwork installation methods. Safety controls and compliance with technical specifications and drawings are also addressed.
expanded polystyrene technology in constructionvutkuri Keerthi
This document provides a technical seminar report on the use of expanded polystyrene technology in construction. It begins with an abstract that discusses how construction techniques have improved over time to use lighter materials and faster construction methods. One such technique is the use of expanded polystyrene (EPS) in construction, which provides benefits like less weight, cost effectiveness, faster construction, insulation, and more sustainable use of resources. The document then provides a table of contents and list of figures before diving into chapters that discuss EPS properties, applications, installation methodology, case studies, and conclusions.
Gutter replacement service and the installation process is the task which should be done accurately for the proper water redirection purpose. the slides here shows the step by step gutter installation process
A Study on Properties of Self-Curing Concrete using Polyethylene Glycol-400IRJET Journal
This document summarizes a study on the properties of self-curing concrete using Polyethylene Glycol-400 (PEG-400). The study investigated the use of PEG-400 as a self-curing agent at dosages of 0%, 0.5%, 1%, and 2% by weight of cement. Tests were conducted on M20, M30, and M40 grade concrete to evaluate compressive strength, workability, and water retention at curing ages of 7, 14, and 28 days. The results showed that PEG-400 improved the water retention capacity and increased compressive strength compared to conventionally cured concrete. A dosage of 1% PEG-400 was found to be optimal for M20
Piling work method statement cm- ms- bw - 002Minh Bui Si
This document provides a method statement for pile driving works for buildings at the Cai Mep International Container Terminal project in Vietnam. It outlines the scope of work, which includes supplying and driving precast concrete piles (PHC piles) and solid concrete piles. The document describes the equipment and labor to be used, including pile hammers, cranes, and a workforce of 33 people. It also provides details on pile fabrication, transportation, storage, driving procedures, quality control checks, safety measures, and appendices with supporting documents.
The document provides details on staircases including:
1) Types of staircases such as straight, dog-legged, and spiral.
2) Requirements for staircase dimensions including tread, rise, and pitch.
3) Detailing principles for steel in staircases including main steel, distribution steel, and anchorage.
4) An example of detailing a dog-legged staircase with given dimensions and reinforcement details.
Quality awareness of concrete cube casting and testing must be done to achieve the desired strength of that particular grade of concrete and for the stability of the structure.
Implementation of magnetized water to improve the properties of concreteIAEME Publication
This document summarizes a study that examined the properties of fresh and hardened concrete made with magnetized water versus tap water. Magnetized water was produced by passing tap water through devices generating magnetic fields of 6000 and 9000 Gauss. Concrete mixtures were tested with different water types, cement contents, and aggregate proportions. Test results showed that in most cases, concrete made with magnetized water exhibited higher slump and strengths compared to tap water concrete, with increases up to 35% higher slump and 20% higher compressive strength. With the same slump and strength requirements, cement content could be reduced by 7.5% using magnetized water.
This document provides design calculations for the seismic and wind loading of an oil storage tank. It calculates the overturning moment due to seismic forces and wind forces acting on the tank. It then calculates the required strength of the tank shell, bottom plate, and anchorage to resist these overturning forces, taking into account the weight and distribution of the tank, contents, roof and supporting structures. Design requirements including allowable stresses and load factors are considered to ensure the structural integrity of the tank under the specified loading conditions.
The document discusses using marble and quarry dust as additives in concrete to produce "green concrete". It describes how these industrial wastes can be used to replace natural resources like sand in concrete, reducing costs and environmental impacts. The document outlines the physical and chemical properties of the wastes and how they were characterized. It also describes mix designs used to replace fine aggregate with the wastes and the results of tests on hardened concrete, which showed improved strength and durability over conventional concrete.
Using fly ash as replacement of cement & aggregatehsaam hsaam
This document presents a thesis study on utilizing fly ash as a partial replacement for cement and fine aggregates in concrete. The study was conducted by Mohamad Rkein under the supervision of Professor Sabaratnam Prathapan and Associate Professor Krishnan Kannoorpatti. The study aims to determine the feasibility and effects on mechanical properties of using fly ash to replace cement and fine aggregates in concrete mixtures. Tests were conducted on workability and compressive strength of concrete with varying replacement levels of fly ash at 7, 28, and 56 days. The results indicate that fly ash can effectively be used as a partial replacement material in concrete and may provide benefits to strength properties and reduce environmental impacts.
Toward green concrete for better sustainable environmenthsaam hsaam
This document discusses efforts to develop green concrete as a more sustainable building material. It begins by noting that cement production currently accounts for 8-10% of global CO2 emissions. The document then discusses various approaches researchers have taken to reduce the environmental impacts of concrete, including substituting fly ash for cement, using recycled materials, and nanoengineering cement mixtures to improve performance. It emphasizes that green concrete must use waste materials, have a sustainable production process, and perform well over its lifetime. The document surveys cleaner cement production technologies and argues green concrete can help all three pillars of sustainability.
The document discusses sustainable design. It states that sustainable design uses green building techniques for materials, energy systems, and construction. Sustainably designed buildings are usually passively cooled and heated, requiring less energy usage. They also minimize impacts on land and resources while meeting present and future needs. The goals of sustainable design are to satisfy current needs without compromising future generations financially, environmentally, and socially.
Final report-cesticcreports fly-ash_pervious_concrete-05202016hsaam hsaam
This document is a report on a study that developed and tested a graphene oxide-modified pervious concrete using fly ash as the sole binder. The concrete was tested against control groups to evaluate its density, void ratio, mechanical strength, infiltration rate, freeze-thaw durability, and resistance to degradation. Test results found that the graphene oxide addition increased strength and durability properties while reducing void ratio and infiltration rate compared to fly ash concrete. However, further durability testing is needed on the fly ash concrete at later ages due to its slow hydration. The report provides background on pervious concrete and fly ash properties.
Experimental investigation of rap modified asphalt binder and crushed rap ag...hsaam hsaam
This document presents an experimental investigation of reclaimed asphalt pavement (RAP) modified asphalt binder and crushed RAP aggregates. The study evaluates the physical properties of asphalt binder mixed with RAP at various proportions (10-50%) and tests the effect on properties like penetration, softening point, ductility and specific gravity. Aggregate tests like Los Angeles abrasion, crushing, shape and impact value are also conducted on crushed RAP aggregates. The results of mixing RAP with virgin binder and using crushed aggregates are discussed to analyze the recycling of RAP materials and minimize waste disposal.
The document summarizes the evaluation of different types of green concrete being investigated by the Danish Centre for Green Concrete. The center aims to reduce the environmental impact of concrete by developing new technologies. Four ways to produce green concrete are described, including using conventional and industrial residual products and cement with reduced environmental impact. Preliminary results show the green concrete types can achieve similar mechanical properties and durability as conventional concrete. A life cycle screening of a bridge found that three green concrete column designs reduced CO2 emissions by 30% or more compared to a reference design, fulfilling the center's environmental goals.
Effect of coconut fibre in concrete and to improve thehsaam hsaam
This document discusses the use of coconut fibre in concrete. Coconut fibre is extracted from the outer shell of coconuts and is one of the most ductile and tough natural fibres. It has high tensile strength and is capable of withstanding strains 4-6 times more than other natural fibres. The objective of the study is to enhance the strength properties of concrete by adding coconut fibre. Different tests will be conducted on fresh and hardened concrete with coconut fibre added at various percentages to determine workability and strength properties. The study will also investigate the effect of incorporating a superplasticizer to improve workability of concrete containing coconut fibre.
Design and properties of sustainable concretehsaam hsaam
The document discusses methods for designing and assessing sustainable concrete. It outlines three approaches: (1) optimizing the concrete mix to reduce environmental impact while maintaining performance and lifetime; (2) improving concrete performance at equal environmental impact and lifetime; and (3) optimizing the structure's lifetime at equal environmental impact and performance. The document then summarizes methods for evaluating a concrete's environmental impact using life cycle assessments. It notes that cement has a large influence on impact and that replacing it can reduce impact if replacements are industrial byproducts. The document concludes by presenting mix design principles for "green concretes" with reduced cement content through optimization and additive replacements while maintaining strength and durability.
Gammon Construction has been a leading construction contractor in Asia for over 50 years. It developed Gammon Green Concrete to reduce the carbon footprint of concrete through formulations that lower cement content and optimize particle packing density. This high-performance concrete has 10% lower carbon emissions, improved durability, and reduces lifetime costs of structures. Gammon also uses technologies like GPS tracking and residue concrete recycling to improve efficiency and sustainability of its concrete operations.
This document discusses concrete as a green building material. It notes that while concrete is widely used due to its low cost and versatility, its production has significant environmental impacts due to the large amounts of raw materials, energy, and CO2 emissions required. The document summarizes efforts to make concrete more sustainable through the use of cement substitutes like fly ash and slag, and recycled materials as aggregate substitutes. It argues that identifying valuable properties in waste materials can increase their commercial viability as concrete ingredients. The emerging green building movement is also changing economic factors to favor more sustainable resource use.
This document provides amendments to Eurocode 7: Geotechnical design - Part 1: General rules (EN 1997-1:2004). The amendments include modifications to sections and annexes of the original standard, such as the contents, national annex, definitions, limit state design, soil and groundwater characterization, geotechnical analysis and design situations. The purpose is to clarify provisions and incorporate technical enhancements to Eurocode 7 Part 1.
This document provides an overview of Eurocode 7 (EN 1997), which establishes the design rules for geotechnical structures. It summarizes the contents and sections of Parts 1 and 2 of Eurocode 7. Part 1 covers general geotechnical design rules, while Part 2 focuses on ground investigation and testing. The document also discusses some key aspects of Part 1, including the determination of characteristic and design values of geotechnical parameters, approaches to ultimate limit state design, and the treatment of serviceability limit states. Various workshop presentations are then listed that will provide more detailed explanations of sections of Eurocode 7 on topics like foundations, retaining structures, slope stability and embankments.
This document provides testing methods for self-compacting concrete using the J-ring test. The J-ring test involves placing fresh concrete into a mold surrounded by a metal ring with gaps. The test determines if the concrete can flow through the gaps under its own weight without segregation or blocking. Passing the J-ring test indicates the concrete is self-compacting.
This document provides testing methods for self-compacting concrete using the J-ring test. The J-ring test involves placing fresh concrete into a mold surrounded by a metal ring with gaps. The test determines if the concrete can flow through the gaps under its own weight without segregation or blocking. Passing the J-ring test indicates the concrete is self-compacting.
This document provides testing methods for self-compacting concrete using the J-ring test. The J-ring test involves placing fresh concrete into a mold surrounded by a metal ring with gaps. The test determines if the concrete can flow through the gaps under its own weight without segregation or blocking. Passing the J-ring test indicates the concrete is self-compacting.
This document provides an overview of two national masonry standards:
1) The Building Code Requirements for Masonry Structures (MSJC Code), which provides requirements for designing masonry structures.
2) The Specification for Masonry Structures (MSJC Specification), which establishes requirements for masonry construction.
It discusses the development of these consensus standards and emphasizes revisions made in the 2002 edition, including new provisions for strength design and seismic design of masonry structures. Adoption of the standards provides benefits such as uniform design criteria and quality assurance.
Design and optimization of ion propulsion dronebjmsejournal
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
VARIABLE FREQUENCY DRIVE. VFDs are widely used in industrial applications for...PIMR BHOPAL
Variable frequency drive .A Variable Frequency Drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage of its power supply. VFDs are widely used in industrial applications for motor control, providing significant energy savings and precise motor operation.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Applications of artificial Intelligence in Mechanical Engineering.pdfAtif Razi
Historically, mechanical engineering has relied heavily on human expertise and empirical methods to solve complex problems. With the introduction of computer-aided design (CAD) and finite element analysis (FEA), the field took its first steps towards digitization. These tools allowed engineers to simulate and analyze mechanical systems with greater accuracy and efficiency. However, the sheer volume of data generated by modern engineering systems and the increasing complexity of these systems have necessitated more advanced analytical tools, paving the way for AI.
AI offers the capability to process vast amounts of data, identify patterns, and make predictions with a level of speed and accuracy unattainable by traditional methods. This has profound implications for mechanical engineering, enabling more efficient design processes, predictive maintenance strategies, and optimized manufacturing operations. AI-driven tools can learn from historical data, adapt to new information, and continuously improve their performance, making them invaluable in tackling the multifaceted challenges of modern mechanical engineering.
Supermarket Management System Project Report.pdfKamal Acharya
Supermarket management is a stand-alone J2EE using Eclipse Juno program.
This project contains all the necessary required information about maintaining
the supermarket billing system.
The core idea of this project to minimize the paper work and centralize the
data. Here all the communication is taken in secure manner. That is, in this
application the information will be stored in client itself. For further security the
data base is stored in the back-end oracle and so no intruders can access it.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Software Engineering and Project Management - Software Testing + Agile Method...Prakhyath Rai
Software Testing: A Strategic Approach to Software Testing, Strategic Issues, Test Strategies for Conventional Software, Test Strategies for Object -Oriented Software, Validation Testing, System Testing, The Art of Debugging.
Agile Methodology: Before Agile – Waterfall, Agile Development.
Generative AI Use cases applications solutions and implementation.pdfmahaffeycheryld
Generative AI solutions encompass a range of capabilities from content creation to complex problem-solving across industries. Implementing generative AI involves identifying specific business needs, developing tailored AI models using techniques like GANs and VAEs, and integrating these models into existing workflows. Data quality and continuous model refinement are crucial for effective implementation. Businesses must also consider ethical implications and ensure transparency in AI decision-making. Generative AI's implementation aims to enhance efficiency, creativity, and innovation by leveraging autonomous generation and sophisticated learning algorithms to meet diverse business challenges.
https://www.leewayhertz.com/generative-ai-use-cases-and-applications/
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELijaia
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
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