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Optimisation Et Performance Des Betons Incorporant De La Poudre De Verre Comme Un Remplacement Partiel Du Ciment Portland
Download Optimisation Et Performance Des Betons Incorporant De La Poudre De Verre Comme Un Remplacement Partiel Du Ciment Portland full books in PDF, epub, and Kindle. Read online Optimisation Et Performance Des Betons Incorporant De La Poudre De Verre Comme Un Remplacement Partiel Du Ciment Portland ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Faecal Sludge Management by : Linda Strande
Download or read book Faecal Sludge Management written by Linda Strande and published by IWA Publishing. This book was released on 2014-08-15 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is estimated that literally billions of residents in urban and peri-urban areas of Africa, Asia, and Latin America are served by onsite sanitation systems (e.g. various types of latrines and septic tanks). Until recently, the management of faecal sludge from these onsite systems has been grossly neglected, partially as a result of them being considered temporary solutions until sewer-based systems could be implemented. However, the perception of onsite or decentralized sanitation technologies for urban areas is gradually changing, and is increasingly being considered as long-term, sustainable options in urban areas, especially in low- and middle-income countries that lack sewer infrastructures. This is the first book dedicated to faecal sludge management. It compiles the current state of knowledge of the rapidly evolving field of faecal sludge management, and presents an integrated approach that includes technology, management, and planning based on Sandecs 20 years of experience in the field. Faecal Sludge Management: Systems Approach for Implementation and Operation addresses the organization of the entire faecal sludge management service chain, from the collection and transport of sludge, and the current state of knowledge of treatment options, to the final end use or disposal of treated sludge. The book also presents important factors to consider when evaluating and upscaling new treatment technology options. The book is designed for undergraduate and graduate students, and engineers and practitioners in the field who have some basic knowledge of environmental and/or wastewater engineering.
Book Synopsis How to Design Wastewater Systems for Local Conditions in Developing Countries by : David M. Robbins
Download or read book How to Design Wastewater Systems for Local Conditions in Developing Countries written by David M. Robbins and published by IWA Publishing. This book was released on 2014-03-15 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a practical handbook providing a step-by-step approach to the techniques used for characterizing wastewater sources and investigating sites where collection, treatment and reuse/disposal technologies will be installed. It is intended to help enable local implementation of on-site and decentralized wastewater management system (DWMS)for wide scale use in development settings. How to Design Wastewater Systems for Local Conditions in Developing Countries helps local service providers and regulatory officials make informed decisions through the use of tools, checklists and case studies. It includes a link to a web based community of on-site and decentralized wastewater professionals, which contains related tools and case studies. This handbook serves as a reference for training classes, certification programs, and higher education programs in civil and sanitary engineering. There is an increasing interest on the part of local government officials and private sector service providers to implement wastewater treatment systems to solve sanitation problems. The model presented in this handbook promotes activities that first generate data related to source and site conditions that represent critical inputs, and then applies this information to the technology selection process. Matching the most appropriate technologies to the specific needs of the wastewater project is the key that leads to long term sustainability. How to Design Wastewater Systems for Local Conditions in Developing Countries is an invaluable resource for public sector decision makers and private sector service providers in developing countries. It is also a useful text for students at engineering colleges in developing countries interested in taking a class that teaches the methods of decentralized wastewater management system (DWMS) development.
Book Synopsis Compendium of Sanitation Systems and Technologies by : Elizabeth Tilley
Download or read book Compendium of Sanitation Systems and Technologies written by Elizabeth Tilley and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Book Synopsis Ecostructures en béton by : Pierre-Claude Aïtcin
Download or read book Ecostructures en béton written by Pierre-Claude Aïtcin and published by Editions Eyrolles. This book was released on 2013-08-23 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quand on sait que - du fait notamment de la transformation du calcaire en chaux - la production de ciment Portland est responsable de 7% des émissions de gaz à effet de serre, on comprend pourquoi il importe désormais de trouver comment minimiser l'empreinte carbone des constructions en béton. On verra comment on peut aujourd'hui réduire de manière significative l'impact environnemental de ces édifices et respecter les impératifs du développement durable sans pour autant - et bien au contraire - mettre en péril l'économie du projet de construction. Il s'agit d'une mutation qui passera toutefois par un changement d'attitude des partenaires : le ciment Portland sera de plus en plus souvent remplacé par des liants binaires, ternaires ou même quaternaires contenant d'autres matériaux cimentaires ; un rapport eau/liant plus faible améliorera la résistance mécanique des bétons en même temps qu'il augmentera leur durée de vie et diminuera leur empreinte carbone. Enfin, l'usage renforcé du mûrissement interne (cure) favorisera l'hydratation des matériaux cimentaires, en particulier dans les bétons à haute performance. On trouvera également dans ce livre une présentation des dernières avancées de la science du béton : comment sait-on maintenant améliorer et la rentabilité et la durée de vie de ce matériau en même temps qu'on réduit son impact environnemental. Fruit d'une technologie simple mais aussi d'une science complexe, le béton entre ainsi dans une ère nouvelle.
Book Synopsis Computer Software Program for On-line Process Control of Production of Portland-cement Concrete by : Steven A. Ragan
Download or read book Computer Software Program for On-line Process Control of Production of Portland-cement Concrete written by Steven A. Ragan and published by . This book was released on 1997 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of a research program to develop a computer software program, SmartPlant, which could reduce the cost of concrete mixtures and increase construction productivity by minimizing the adverse effects of materials and mixture variations upon construction operations. SmartPlant is comprised of five component programs. Most attention was given to seeMIX, the mixture proportioning program. A laboratory evaluation of this program was conducted in which simulated paving, structural, and mass concrete mixtures were proportioned using current American Concrete Institute (ACI) proportioning practices and seeMIX technology. Two field evaluations of seeMIX were also conducted. SeeMAT-A, the aggregate database program, was also evaluated under field conditions on two occasions. SeeMAT-C, the cement database program, and seeMAT-P, the pozzolan database program, were evaluated in the laboratory. SeeSTAT, the statistical database program was not evaluated. The results indicated that seeMIX mixture proportioning technology can proportion concrete mixtures having fresh and hardened properties equal to, and in some instances superior to, current ACI proportioning practices when richer mixtures, such as those used in paving or structural applications, are being proportioned. SeeMIX was less effective in proportioning lean mass concrete mixtures. SeeMAT-A, seeMAT-C, and seeMAT-P performed well and were judged to be useful tools, both as components of SmartPlant and as stand-alone tools. While the individual components of SmartPlant were evaluated, numerous logistical and technical problems prevented the evaluation of a fully automated SmartPlant system either in the laboratory or the field.
Book Synopsis Ciments et bétons by : Michel Vénuat
Download or read book Ciments et bétons written by Michel Vénuat and published by FeniXX. This book was released on 1978-01-01T00:00:00+01:00 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.
