Author: FRANCIS.. BAUR
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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Author: MOUNIR.. DOUMIT
Publisher:
ISBN:
Category :
Languages : fr
Pages :

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Author: Jean Robillard
Publisher:
ISBN:
Category :
Languages : fr
Pages : 430

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Author: PATRICK.. VINCENT
Publisher:
ISBN:
Category :
Languages : fr
Pages : 210

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Author: Marie-Thérèse Averbuch
Publisher:
ISBN:
Category : Cadmium
Languages : fr
Pages : 177

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Author: Florica Lazar
Publisher:
ISBN:
Category :
Languages : fr
Pages : 202

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Dans le génie civil, la durabilité des infrastructures en béton armé est principalement liée à la corrosion des armatures avant ou après leur enrobage de béton. La protection de ces armatures constitue donc un enjeu économique, environnementale et sécuritaire. Dans ce but, cette étude a porté d’une part, sur l’élaboration et la caractérisation de revêtements protecteurs de phosphates de zinc par deux méthodes : conversion chimique (CC) et traitement électrochimique cathodique (TEC) et d’autre part, sur l’étude de leurs comportements à la corrosion dans divers milieux : neutre, alcalin et cimentaire chloruré ou carbonaté. Nos investigations ont permis de : - mettre au point la formulation d’un bain de phosphatation et de réaliser des revêtements ni toxique ni onéreux constitués d’hopeite, de phosphophylite et de zinc. - préciser, en faisant appel aux techniques électrochimiques stationnaires et transitoires, le comportement à la corrosion de l’acier revêtu et l’effet protecteur du revêtement en milieu neutre chloruré ou carbonaté, alcalin (pH =12,6) et très alcalin (pH=13,2) contaminé ou non par des chlorures. - caractériser la réactivité de ces revêtements ainsi que leurs interactions avec le milieu cimentaire vis-à-vis des espèces actives (Cl-) présentes en solution, responsables de l’amorçage et de la propagation de la corrosion des armatures. - montrer que l’application des revêtements de phosphate de zinc est l’un des moyens de protection contre la corrosion du béton armé

Author: Mark Shand
Publisher: Newnes
ISBN: 0123919312
Category : Technology & Engineering
Languages : en
Pages : 336

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There is an urgent need for innovative, cost-effective, and sustainable approaches to reduce the tremendous environmental impact of conventional cement and cement-based technologies. Consuming a significantly lower quantity of natural resources than conventional cements, with the added ability to effectively sequestering carbon, magnesia cements offer great potential in this area. Magnesia Cements: From Formulation to Application explores the latest developments in this exciting area, reviewing the unique properties offered by these cements, including superior strength, fire resistance, and exceptional ability to bond to a wide range of aggregates, and highlighting their potential role in making cement production and usage more sustainable. Providing detailed analysis of the chemistry, properties, manufacture, and both traditional and novel applications, Magnesia Cements: From Formulation to Application is ideally suited for materials scientists, cement chemists, ceramicists, and engineers involved with the design, development, application and impact assessment of magnesia cements across both academia and industry. - Provides formulary information research into more environmentally friendly cement systems - Discusses chemical phase analysis and the impact of formulation - Applies analysis and history of global uses to provide support for future environmentally stable industrial, building, and non-building applications

Author: H F W Taylor
Publisher: Thomas Telford
ISBN: 9780727725929
Category : Science
Languages : en
Pages : 488

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Book Description
A revised and updated text on cement chemistry. This edition forms a comprehensive and in-depth reference work that explains in detail all aspects of cement chemistry.

Author: Wieslaw Kurdowski
Publisher: Springer Science & Business
ISBN: 9400779453
Category : Science
Languages : en
Pages : 705

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Book Description
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: Tadashi Kokubo
Publisher: Elsevier
ISBN: 1845694228
Category : Science
Languages : en
Pages : 785

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Book Description
Bioceramics have been used very successfully within the human body for many years. They are commonly used in orthopaedic surgery and dentistry but they are potentially suitable for a wide range of important applications within the medical device industry. This important book reviews the range of bioceramics, their properties and range of clinical uses.Chapters in the first section of the book discusses issues of significance to a range of bioceramics such as their structure, mechanical properties and biological interactions. The second part reviews the fabrication, microstructure and properties of specific bioceramics and glasses, concentrating on the most promising materials. These include alumina and zirconia ceramics, bioactive glasses and bioactive glass-ceramics, calcium sulphate, tricalcium phosphate-based ceramics, hydroxyapatite, tricalcium phosphate/hydroxyapatite biphasic ceramics, si-substrated hydroxyapatite, calcium phosphate cement, calcium phosphate coating, titania-based materials, ceramic-polymer composites, dental ceramics and dental glass-ceramics. The final group of chapters reviews the clinical applications of bioceramics in joint replacement, bone grafts, tissue engineering and dentistry.Bioceramics and their clinical applications is written by leading academics from around the world and it provides an authoritative review of this highly active area of research. This book is a useful resource for biomaterials scientists and engineers, as well as for clinicians and the academic community. - Provides an authoritative review of this highly active area of research - Discusses issues of significance of a range of bioceramics such as their structure, mechanical properties and biological interactions - Reviews the clinical applications of bioceramics in joint replacement, bone grafts, tissue engineering and dentistry