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Download or read book Ettringite Formation and the Performance of Concrete written by and published by . This book was released on 2001 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernard Erlin
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ettringite written by Bernard Erlin and published by . This book was released on 1999 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. Barnes
Publisher : CRC Press
ISBN 13 : 0203477782
Total Pages : 584 pages
Book Rating : 4.2/5 (34 download)
Download or read book Structure and Performance of Cements, Second Edition written by P. Barnes and published by CRC Press. This book was released on 2002-11-01 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drawing together a multinational team of authors, this second edition of Structure and Performance of Cements highlights the latest global advances in the field of cement technology. Three broad categories are covered: basic materials and methods, cement extenders, and techniques of examination. Within these categories consideration has been given to environmental issues such as the use of waste materials in cement-burning as supplementary fuels and new and improved methods of instrumentation for examining structural aspects and performance of cements. This book also covers cement production, mineralogy and hydration, as well as the mechanical properties of cement, and the corrosion and durability of cementitious systems. Special cements are included, along with calcium aluminate and blended cements together with a consideration of the role of gypsum in cements. Structure and Performance of Cements is an invaluable key reference for academics, researchers and practitioners alike.
Author : Matthew Joel Ferguson
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (16 download)
Download or read book Delayed Ettringite Formation Risk in New Mexico State University Developed Heat Treated Ultra High-performance Concrete written by Matthew Joel Ferguson and published by . This book was released on 2018 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study analyzes New Mexico State University (NMSU) Civil Engineering developed Heat Treated (HT) ultra-high-performance concrete (UHPC). The primary goal of this study is to analyze the risk of delayed ettringite formation (DEF) through the analysis of temperature development in HT (aka heat curing), and risk of internal sulfate attack (ISA) and external sulfate attack (ESA) through the analysis of physical and chemical properties. Physical properties are tested using x-ray diffraction (XRD), scanning electron microscope (SEM), Brunauer-Emmett-Teller (BET) nitrogen adsorption, and mercury intrusion (MI). Chemical properties of the concrete mixture design and individual HT and untreated (UT) samples are done through mixture design analysis and comparison to known values. Results include that the heat of hydration in NMSU HT methods surpass the recommended curing temperature by roughly 15°C. XRD testing reveals that UT has 555 counts of ettringite higher than HT samples, pointing towards the thermal destabilization of ettringite and a raised risk of DEF. SEM hints at the UT sample being more hydrated throughout its paste with fewer pores and voids on the surface than the HT sample. BET testing reveals that the UT sample has a surface area of nearly 12 m2/g compared to 5 m2/g of the HT sample. MI testing reveals that the UT sample has a lower pore area, pore size, bulk and skeletal density, and porosity at the meso-macro pore level than the HT sample. MI and BET shows that micro-meso sized pores became finer while meso-macro sized pores became coarser in UHPC after HT. Chemical analysis of the design mixture shows that the UHPC mixture has a lower sulfate level then the maximum recommended, along with reduced tricalcium alumina, increased sulfate resistance through utilization of Type I/II cement, and the addition of 5% by mixture weight of silica fume and 3% by weight of fly ash, which aids in eliminating Ca(OH)2 reaction products in the hardened cement while increasing permeability and porosity of the concrete. In conclusion, NMSU developed UHPC is at little to no risk of ISA and at low to moderate risk of ETA depending on the planned utilization of the concrete.
Author : Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure
Publisher : National Academies Press
ISBN 13 : 0309562317
Total Pages : 125 pages
Book Rating : 4.3/5 (95 download)
Download or read book Nonconventional Concrete Technologies written by Committee on Nonconventional Concrete Technologies for Renewal of the Highway Infrastructure and published by National Academies Press. This book was released on 1997-04-08 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonconventional Concrete Technologies: Renewal of the Highway Infrastructure identifies research and development opportunities in innovative, nonconventional materials and processes that have the potential to accelerate the construction process, improve the durability of highway pavement and bridges, and enhance the serviceability and longevity of new construction under adverse conditions.
Author : Stefano Della Torre
Publisher : Springer Nature
ISBN 13 : 303033256X
Total Pages : 386 pages
Book Rating : 4.0/5 (33 download)
Download or read book Regeneration of the Built Environment from a Circular Economy Perspective written by Stefano Della Torre and published by Springer Nature. This book was released on 2019-01-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book explores the strategic importance and advantages of adopting multidisciplinary and multiscalar approaches of inquiry and intervention with respect to the built environment, based on principles of sustainability and circular economy strategies. A series of key challenges are considered in depth from a multidisciplinary perspective, spanning engineering, architecture, and regional and urban economics. These challenges include strategies to relaunch socioeconomic development through regenerative processes, the regeneration of urban spaces from the perspective of resilience, the development and deployment of innovative products and processes in the construction sector in order to comply more fully with the principles of sustainability and circularity, and the development of multiscale approaches to enhance the performance of both the existing building stock and new buildings. The book offers a rich selection of conceptual, empirical, methodological, technical, and case study/project-based research. It will be of value for all who have an interest in regeneration of the built environment from a circular economy perspective.
Author : Karen Scrivener
Publisher : RILEM Publications
ISBN 13 : 9782912143440
Total Pages : 330 pages
Book Rating : 4.1/5 (434 download)
Download or read book PRO 35: International RILEM Workshop on International Sulfate Attack and Delayed Ettringite Formation written by Karen Scrivener and published by RILEM Publications. This book was released on 2004 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wieslaw Kurdowski
Publisher : Springer Science & Business
ISBN 13 : 9400779453
Total Pages : 705 pages
Book Rating : 4.4/5 (7 download)
Download or read book Cement and Concrete Chemistry written by Wieslaw Kurdowski and published by Springer Science & Business. This book was released on 2014-04-24 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph describes cement clinker formation. It covers multicomponent systems, clinker phase structures and their reactions with water, hydrate composition and structure, as well as their physical properties. The mineral additions to cement are described as are their influence on cement-paste properties. Special cements are also discussed. The microstructure of concrete is then presented, and special emphasis is given to the role of the interfacial transition zone, and the corrosion processes in the light of cement-phase composition, mineral additions and w/c ratio. The admixtures' role in modern concrete technology is described with an emphasis on superplasticizer chemistry and its cement-paste rheological modification mechanism. Cement with atypical properties, such as calcium aluminate, white, low energy and expansive cements are characterized. The last part of the book is devoted to special types of concrete such as self compacting and to reactive powders.
Author : K.L. Scrivener
Publisher : CRC Press
ISBN 13 : 9780419215707
Total Pages : 474 pages
Book Rating : 4.2/5 (157 download)
Download or read book Mechanisms of Chemical Degradation of Cement-based Systems written by K.L. Scrivener and published by CRC Press. This book was released on 1997-04-17 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deterioration of cement-based materials is a continuing problem, as it results in the substantial shortening of the lives of conventional concrete structures. The main costs result from poor performance and the need for early repair. With more advanced applications, where very long service lives are essential, such as the storage of nuclear waste, an understanding of the degradation processes in order to predict long term performance is very important. this book forms the proceedings of the latest Symposia at the Materials Research Society Autumn meeting in Boston.
Author : Mark Alexander
Publisher : Springer Science & Business Media
ISBN 13 : 9400754132
Total Pages : 471 pages
Book Rating : 4.4/5 (7 download)
Download or read book Performance of Cement-Based Materials in Aggressive Aqueous Environments written by Mark Alexander and published by Springer Science & Business Media. This book was released on 2012-12-18 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete and cement-based materials must operate in increasingly aggressive aqueous environments, which may be either natural or industrial. These materials may suffer degradation in which ion addition and/or ion exchange reactions occur, leading to a breakdown of the matrix microstructure and consequent weakening. Sometimes this degradation can be extremely rapid and serious such as in acidic environments, while in other cases degradation occurs over long periods. Consequences of material failure are usually severe – adversely affecting the health and well-being of human communities and disturbing ecological balances. There are also large direct costs of maintaining and replacing deteriorated infrastructure and indirect costs from loss of production during maintenance work, which place a great burden on society. The focus of this book is on addressing issues concerning performance of cement-based materials in aggressive aqueous environments , by way of this State-of-the-Art Report. The book represents the work of many well-known and respected authors who contributed chapters or parts of chapters. Four main themes were addressed: I. Nature and kinetics of degradation and deterioration mechanisms of cement-based materials in aggressive aqueous environments, II. Modelling of deterioration in such environments, III. Test methods to assess performance of cement-based materials in such environments, and which can be used to characterise and rate relative performance and inform long term predictions, IV. Engineering implications and consequences of deterioration in aggressive aqueous environments, and engineering approaches to the problem.
Author : Stacy Bauer
Publisher :
ISBN 13 :
Total Pages : 61 pages
Book Rating : 4.:/5 (696 download)
Download or read book Alkali-silica Reaction and Delayed Ettringite Formation in Concrete written by Stacy Bauer and published by . This book was released on 2006 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently in Texas, there has been significant damage of field structures resulting from concrete durability problems. Alkali-silica reaction (ASR) and delayed ettringite formation (DEF), or combinations of the two, have been found to be the main causes of these problems. The term Premature Concrete Deterioration (PCD) has been adopted to refer to problems associated with ASR and DEF because it is often difficult to distinguish between them. The Texas Department of Transportation (TxDOT) has designated nine mitigation options that are available to prevent or minimize PCD-related problems. Research is currently underway to document the performance of concrete using these mitigation options in the laboratory and in the field. One of the objectives of this research is to review the state of the art regarding ASR and DEF, with particular attention to mechanisms of damage, appropriate test methods, specifications, and performance-related issues.
Author : Pavel Krivenko
Publisher : BoD – Books on Demand
ISBN 13 : 1789855675
Total Pages : 166 pages
Book Rating : 4.7/5 (898 download)
Download or read book Compressive Strength of Concrete written by Pavel Krivenko and published by BoD – Books on Demand. This book was released on 2020-03-11 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete made using mineral cements, the raw materials which on earth are practically endless, is known as one of the oldest building materials and during the last decades of the twentieth century has become a dominant building material for general use. At the same time, the requirements of the quality of concrete and its performance properties, in particular compressive strength, durability, economical efficiency, and low negative impact of its manufacture on the environment have not yet been completely met. Bearing these requirements in mind, researchers and engineers worldwide are working on how to satisfy these requirements. This book has been written by researchers and experts in the field and provides the state of the art on recent progress achieved on the properties of concrete, including concrete in which industrial by-products are utilized. The book is dedicated to graduate students, researchers, and practicing engineers in related fields.
Author : P. B. Bamforth
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.F/5 ( download)
Download or read book Early-age Thermal Crack Control in Concrete written by P. B. Bamforth and published by . This book was released on 2007 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide provides a method for estimating the magnitude of crack inducing strain and the risk of cracking; and where cracking will occur guidance is provided on the design of reinforcement to control crack widths.
Author : John Newman
Publisher : Elsevier
ISBN 13 : 0080489990
Total Pages : 317 pages
Book Rating : 4.0/5 (84 download)
Download or read book Advanced Concrete Technology 4 written by John Newman and published by Elsevier. This book was released on 2003-08-21 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the Institute of Concrete Technology's Advanced Concrete Technology Course, these four volumes are a comprehensive educational and reference resource for the concrete materials technologist. An expert international team of authors from research, academia and industry has been brought together to produce this unique series. Each volume deals with a different aspect of the subject: constituent materials, properties, processes and testing and quality. With worked examples, case studies and illustrations throughout, the books will be a key reference for the concrete specialist for years to come. Expert international authorship ensures the series is authoritative Case studies and worked examples help the reader apply their knowledge to practice Comprehensive coverage of the subject gives the reader all the necessary reference material
Author : Herbert Pöllmann
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110473720
Total Pages : 518 pages
Book Rating : 4.1/5 (14 download)
Download or read book Cementitious Materials written by Herbert Pöllmann and published by Walter de Gruyter GmbH & Co KG. This book was released on 2017-12-18 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aside from water the materials which are used by mankind in highest quantities arecementitious materials and concrete. This book shows how the quality of the technical product depends on mineral phases and their reactions during the hydration and strengthening process. Additives and admixtures infl uence the course of hydration and the properties. Options of reducing the CO2-production in cementitious materials are presented and numerous examples of unhydrous and hydrous phases and their formation conditions are discussed. This editorial work consists of four parts including cement composition and hydration, Special cement and binder mineral phases, Cementitious and binder materials, and Measurement and properties. Every part contains different contributions and covers a broad range within the area. Contents Part I: Cement composition and hydration Diffraction and crystallography applied to anhydrous cements Diffraction and crystallography applied to hydrating cements Synthesis of highly reactive pure cement phases Thermodynamic modelling of cement hydration: Portland cements – blended cements – calcium sulfoaluminate cements Part II: Special cement and binder mineral phases Role of hydrotalcite-type layered double hydroxides in delayed pozzolanic reactions and their bearing on mortar dating Setting control of CAC by substituted acetic acids and crystal structures of their calcium salts Crystallography and crystal chemistry of AFm phases related to cement chemistry Part III: Cementitious and binder materials Chemistry, design and application of hybrid alkali activated binders Binding materials based on calcium sulphates Magnesia building material (Sorel cement) – from basics to application New CO2-reduced cementitious systems Composition and properties of ternary binders Part IV: Measurement and properties Characterization of microstructural properties of Portland cements by analytical scanning electron microscopy Correlating XRD data with technological properties No cement production without refractories
Author : Norb Delatte
Publisher : Elsevier
ISBN 13 : 1845697030
Total Pages : 352 pages
Book Rating : 4.8/5 (456 download)
Download or read book Failure, Distress and Repair of Concrete Structures written by Norb Delatte and published by Elsevier. This book was released on 2009-10-26 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding and recognising failure mechanisms in concrete is a fundamental pre-requisite to determining the type of repair, or whether a repair is feasible. This title provides a review of concrete deterioration and damage, as well as looking at the problem of defects in concrete. It also discusses condition assessment and repair techniques. Part one discusses failure mechanisms in concrete and covers topics such as causes and mechanisms of deterioration in reinforced concrete, types of damage in concrete structures, types and causes of cracking and condition assessment of concrete structures. Part two reviews the repair of concrete structures with coverage of themes such as standards and guidelines for repairing concrete structures, methods of crack repair, repair materials, bonded concrete overlays, repairing and retrofitting concrete structures with fiber-reinforced polymers, patching deteriorated concrete structures and durability of repaired concrete. With its distinguished editor and international team of contributors, Failure and repair of concrete structures is a standard reference for civil engineers, architects and anyone working in the construction sector, as well as those concerned with ensuring the safety of concrete structures. Provides a review of concrete deterioration and damage Discusses condition assessment and repair techniques, standards and guidelines
Author : Konstantin Kovler
Publisher : Springer Nature
ISBN 13 : 3030433323
Total Pages : 192 pages
Book Rating : 4.0/5 (34 download)
Download or read book Concrete Durability and Service Life Planning written by Konstantin Kovler and published by Springer Nature. This book was released on 2020-04-28 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gathers the proceedings of the 3rd International RILEM Workshop on Concrete Durability and Service Life Planning (ConcreteLife’20), held in Haifa, Israel in January 2020. The papers cover a range of topics in concrete curing, cracking in concrete structures, corrosion of steel in concrete, thermal and hygral effects, concrete in cold climates and under high temperatures, recycling, alkali-silica reactions, chloride and sulfate attacks, marine structures, transport phenomena, durability design, microstructure of concrete and volume changes, and life cycle assessment. The book also explores future trends in research, development, and practical engineering applications related to durable concrete construction, and focuses on the design and construction of concrete structures exposed to various environmental conditions and mechanical loading. Given its scope, it offers a valuable asset for all researchers and graduate students in the areas of cement chemistry, cement production, and concrete design.
