CONTRIBUTION A L'ETUDE DE LA CONSISTANCE ET DE L'EPAISSEUR DU FILM DES CIMENTS AU PHOSPHATE DE ZINC PDF Download
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Author: MOUNIR.. DOUMIT
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Languages : fr
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Author: MOUNIR.. DOUMIT
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Languages : fr
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Author: FRANCIS.. BAUR
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Languages : fr
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Author: Jean Robillard
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Category :
Languages : fr
Pages : 430
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Author: PATRICK.. VINCENT
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Category :
Languages : fr
Pages : 210
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Author: LOIC.. VECHE
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Category :
Languages : fr
Pages : 342
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Author: Ginette Arliguié
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Languages : fr
Pages : 382
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Author: ANNE-SOPHIE.. DEQUIEDT
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Languages : fr
Pages : 193
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L'ANALYSE MORPHOLOGIQUE DES MATERIAUX EST A L'HEURE ACTUELLE UN PASSAGE OBLIGE POUR BIEN COMPRENDRE LEUR COMPORTEMENT ET EN AMELIORER LES PERFORMANCES, GRACE A UN CONTROLE DE LEUR MICROSTRUCTURE. DANS LE CAS DES MATERIAUX DE GENIE CIVIL, CETTE ETUDE EST D'AUTANT PLUS COMPLEXE QUE CES MATERIAUX PRESENTENT UN CARACTERE MULTI-ECHELLE ET MULTIPHASE. CE TRAVAIL A POUR BUT DE MONTRER LA FAISABILITE DE L'UTILISATION DE L'OUTIL ANALYSE D'IMAGES POUR CARACTERISER CES MATERIAUX. DEUX POINTS SONT CONSIDERES : L'HYDRATATION DU CIMENT PORTLAND ET LA MORPHOLOGIE D'UN BETON. CE MEMOIRE S'ARTICULE EN TROIS PARTIES. LA PREMIERE EST CONSACREE A LA PRESENTATION DU MATERIAU ET DES TECHNIQUES D'ANALYSE D'IMAGES ; LA SECONDE CONCERNE L'ETUDE DE L'HYDRATATION DU CIMENT PORTLAND ; LA DERNIERE PARTIE DE CE TRAVAIL PORTE SUR L'ETUDE DE LA MORPHOLOGIE D'UN BETON, ET PLUS PARTICULIEREMENT SUR LA REPARTITION DES VIDES. DE L'ETUDE DE L'HYDRATATION, ON RETIENDRA QUE L'ANALYSE D'IMAGES PERMET D'OBTENIR DES INFORMATIONS SUPPLEMENTAIRES PAR RAPPORT AUX TECHNIQUES PHYSIQUES, NOTAMMENT SUR LA MORPHOLOGIE DES PHASES ET LEUR AGENCEMENT. LES RESULTATS OBTENUS SUR L'ETUDE DE LA MORPHOLOGIE D'UN BETON MONTRENT LA RICHESSE DES INFORMATIONS APPORTEES PAR LES TECHNIQUES D'ANALYSE D'IMAGES (ETUDE MORPHOLOGIQUE ET GRANULOMETRIQUE, ETUDE DE LA DISPERSION ET DE L'HOMOGENEITE), MAIS AUSSI LA CONCORDANCE DES DIFFERENTES METHODES POUR ABOUTIR AUX MEMES RESULTATS. EN CE QUI CONCERNE PLUS PRECISEMENT LA REPARTITION DES VIDES, QUATRE ALGORITHMES AUTOMATIQUES DE MESURE DE DISTANCE INTER-VIDES ONT ETE MIS AU POINT. UNE CORRELATION A PARTIR DE L'UNE DES METHODES DEVELOPPEES A PU ETRE FAITE AVEC LES METHODES MANUELLES COURAMMENT UTILISEES. POUR FINIR, CETTE ETUDE OUVRE DES VOIES VERS UNE MODELISATION DE LA MICROSTRUCTURE COMPLEXE DE CES MATERIAUX DE GENIE CIVIL. UNE VOIE D'INVESTIGATION EST PROPOSEE POUR LA MODELISATION D'UN BETON. LES PREMIERS RESULTATS OBTENUS APPARAISSENT PROMETTEURS.
Author: Jean-Paul Kurtz
Publisher: Springer Science & Business Media
ISBN: 0306483173
Category : Technology & Engineering
Languages : en
Pages : 1520
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I am pleased to present a work which marks a milestone in the history of public works and, more precisely, in that of permanent structures—a comprehensive dictionary of Civil Engineering terms. Since the beginning of time, Man has always tried to find a means to clear the obstacles which nature erected to displace him. With the first tree trunk thrown across a river, man sought to improve the crossing structure. After the invention of the wheel, and to satisfy his thirst for conquest (Roman ways), and comfort (aqueducts), man built bridges that became a preremptory necessity to move quickly. Thus, Man started to build wooden and masonry works. With the passing centuries, the builders became masters in the art of building masonry works. Then came the Industrial Revolution and the advent of the steel (1864), which was closely followed by the invention of the reinforced concrete (1855). The need for railways and improving the road network inspired great works of crossing such as viaducts and tunnels. The boom of the railway network and the development of the car required the construction of an increasing number of new structures. This phenomenon continues today with hundreds of structures built each year throughout the world.
Author: Jacqueline Ki-Zerbo
Publisher: Univ of California Press
ISBN: 9780520066960
Category : History
Languages : en
Pages : 372
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"This volume covers the period from the end of the Neolithic era to the beginning of the seventh century of our era. This lengthy period includes the civilization of Ancient Egypt, the history of Nubia, Ethiopia, North Africa and the Sahara, as well as of the other regions of the continent and its islands."--Publisher's description
Author: Linda Strande
Publisher: IWA Publishing
ISBN: 1780404735
Category : Technology & Engineering
Languages : en
Pages : 428
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Book Description
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.
