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Comportement Et Simulation Des Materiaux Cimentaires En Environnement Agressifs
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Book Synopsis Performance of Cement-Based Materials in Aggressive Aqueous Environments by : Mark Alexander
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.
Book Synopsis Comportement et simulation des matériaux cimentaires en environnement agressifs by : Siham Kamali
Download or read book Comportement et simulation des matériaux cimentaires en environnement agressifs written by Siham Kamali and published by . This book was released on 2003 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Autogenous Shrinkage of Concrete by : Ei-ichi Tazawa
Download or read book Autogenous Shrinkage of Concrete written by Ei-ichi Tazawa and published by CRC Press. This book was released on 1999-01-28 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms the proceedings of a workshop held in Hiroshima in June 1998 and derive from the work of a Technical Committee of the Japan Concrete Institute. Topics include test and prediction methods, the science of autogenous shrinkage, strain and stress, and consequent design concerns.
Book Synopsis Practical Residual Stress Measurement Methods by : Gary S. Schajer
Download or read book Practical Residual Stress Measurement Methods written by Gary S. Schajer and published by John Wiley & Sons. This book was released on 2013-09-23 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introductory and intermediate level handbook written in pragmatic style to explain residual stresses and to provide straightforward guidance about practical measurement methods. Residual stresses play major roles in engineering structures, with highly beneficial effects when designed well, and catastrophic effects when ignored. With ever-increasing concern for product performance and reliability, there is an urgent need for a renewed assessment of traditional and modern measurement techniques. Success critically depends on being able to make the most practical and effective choice of measurement method for a given application. Practical Residual Stress Measurement Methods provides the reader with the information needed to understand key residual stress concepts and to make informed technical decisions about optimal choice of measurement technique. Each chapter, written by invited specialists, follows a focused and pragmatic format, with subsections describing the measurement principle, residual stress evaluation, practical measurement procedures, example applications, references and further reading. The chapter authors represent both international academia and industry. Each of them brings to their writing substantial hands-on experience and expertise in their chosen field. Fully illustrated throughout, the book provides a much-needed practical approach to residual stress measurements. The material presented is essential reading for industrial practitioners, academic researchers and interested students. Key features: • Presents an overview of the principal residual stress measurement methods, both destructive and non-destructive, with coverage of new techniques and modern enhancements of established techniques • Includes stand-alone chapters, each with its own figures, tables and list of references, and written by an invited team of international specialists
Book Synopsis Pore Structure of Cement-Based Materials by : Kalliopi K. Aligizaki
Download or read book Pore Structure of Cement-Based Materials written by Kalliopi K. Aligizaki and published by CRC Press. This book was released on 2005-09-22 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pore Structure of Cement-Based Materials provides a thorough treatment of the experimental techniques used to characterize the pore structure of materials. The text presents the principles and practical applications of the techniques used, organized in an easy-to-follow and uncomplicated manner, providing the theoretical background, the way to analyze experimental data, and the factors affecting the results. The book is the single comprehensive source of the techniques most commonly used for pore structure analysis, covering simple techniques like mercury intrusion porosimetry and water absorption, to the more sophisticated small-angle scattering and nuclear magnetic resonance. The book is an essential reference text for researchers, users, and students in materials science, applied physics, and civil engineering, who seek a deep understanding of the principles and limitations of the techniques used for pore structure analysis of cement-based materials.
Book Synopsis Microporomechanics by : Luc Dormieux
Download or read book Microporomechanics written by Luc Dormieux and published by John Wiley & Sons. This book was released on 2006-08-14 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as a first introduction to the micromechanics of porous media, this book entitled “Microporomechanics” deals with the mechanics and physics of multiphase porous materials at nano and micro scales. It is composed of a logical and didactic build up from fundamental concepts to state-of-the-art theories. It features four parts: following a brief introduction to the mathematical rules for upscaling operations, the first part deals with the homogenization of transport properties of porous media within the context of asymptotic expansion techniques. The second part deals with linear microporomechanics, and introduces linear mean-field theories based on the concept of a representative elementary volume for the homogenization of poroelastic properties of porous materials. The third part is devoted to Eshelby’s problem of ellipsoidal inclusions, on which much of the micromechanics techniques are based, and illustrates its application to linear diffusion and microporoelasticity. Finally, the fourth part extends the analysis to microporo-in-elasticity, that is the nonlinear homogenization of a large range of frequently encountered porous material behaviors, namely, strength homogenization, nonsaturated microporomechanics, microporoplasticity and microporofracture and microporodamage theory.
Book Synopsis Products and Systems for the Protection and Repair of Concrete Structures. Test Methods. Determination of Carbonation Depth in Hardened Concrete by the Phenolphthalein Method by : British Standards Institute Staff
Download or read book Products and Systems for the Protection and Repair of Concrete Structures. Test Methods. Determination of Carbonation Depth in Hardened Concrete by the Phenolphthalein Method written by British Standards Institute Staff and published by . This book was released on 2006-11-30 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concretes, Structures, Concrete structures, Reinforced concrete, Repair, Corrosion protection, Carbonation, Depth measurement, Chemical analysis and testing, pH measurement, Alkalinity, Acid-alkali indicators, Phenolphthalein, Specimen preparation
Book Synopsis Évaluation du comportement en durabilité de nouvelles matrices cimentaires pour l'obtention de bétons respectueux de l'environnement by : Charles Lafrenière
Download or read book Évaluation du comportement en durabilité de nouvelles matrices cimentaires pour l'obtention de bétons respectueux de l'environnement written by Charles Lafrenière and published by . This book was released on 2017 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le béton figure parmi les matériaux de construction les plus polluants compte tenu du grand volume utilisé chaque année. La production du ciment portland, l'ingrédient clé du béton, est très énergivore et le procédé de décarbonatation génère de grandes quantités de CO2. L'industrie du ciment est responsable d'environ 5 à 7% des émissions mondiales de gaz à effet de serre. Dans ce contexte, la recherche de nouveaux liants pour la fabrication de bétons verts et durables est un domaine en constante expansion. L'objectif est de développer et proposer des alternatives à l'industrie. Les ciments composés (ciment + ajouts cimentaires alternatifs) et les liants de nouvelle génération appelés "géopolymères" représentent deux alternatives intéressantes. Toutefois, il est important d'évaluer leur comportement en durabilité pour que ces matériaux soient acceptés. Ce projet de recherche s'intéresse donc à l'évaluation du comportement en durabilité de ces deux alternatives. La performance en durabilité de la poudre de verre mixte (PV) et d'une cendre volante de biomasse (CVK) contre l'alcali-réaction (RAG) a ainsi été évaluée par l'entremise d'essais d'expansion sur mortier (CSA A23.2-25A) et sur béton (CSA A23.2-14A) pour des niveaux de remplacement du ciment portland de 20% et 30%. Les résultats obtenus à ce jour montrent qu'à 20% et 30% de remplacement du ciment, ces deux ajouts cimentaires alternatifs ne rencontrent pas les exigences normatives à ce qui a trait à leur utilisation comme mesure préventive appropriée contre la RAG. La performance des géopolymères a également été évaluée dans le but de se familiariser avec les différents paramètres de synthèse, mais aussi afin de déterminer la viabilité de ces systèmes en durabilité, plus précisément contre la RAG. Les résultats sur mortier et sur béton démontrent que la nature du matériau "source", la température et la durée de cure, le temps de malaxage, la nature et la concentration de la solution d'activation, ainsi que la présence d'humidité sont les paramètres qui ont le plus d'influence sur le développement des résistances mécaniques des géopolymères. Les résultats d'essai d'expansion face à l'alcali-réaction sont très variables et aucune tendance n'a été observée sur mortier, tandis que les résultats sur béton montrent une expansion excessive à long terme.
