Durabilite Des Matrices Ciment Portland Laitier De Haut Fourneau Activees Par Des Chlorures

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Durabilité des matrices ciment Portland - laitier de haut-fourneau activées par des chlorures

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Author : Bernard Salesses
Publisher :
ISBN 13 :
Total Pages : 283 pages
Book Rating : 4.:/5 (123 download)

Book Synopsis Durabilité des matrices ciment Portland - laitier de haut-fourneau activées par des chlorures by : Bernard Salesses

Download or read book Durabilité des matrices ciment Portland - laitier de haut-fourneau activées par des chlorures written by Bernard Salesses and published by . This book was released on 2019 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les laitiers de haut-fourneaux (LHF) sont utilisés dans les ciments notamment en raison de l'amélioration globale de la durabilité qu'ils confèrent aux matériaux de construction. Cependant, les liants à forte teneur en laitiers présentent une hydratation plus lente et donc un développement de résistances mécaniques moins rapide que les ciments portland (CP). Des solutions existent pour accélérer le durcissement des liants à base de LHF, notamment l'emploi d'activants chimiques à base de chlorures. Les effets de l'activation des systèmes CP/LHF sur les développements de résistances mécaniques sont abordés dans la littérature, mais leur durabilité est assez peu étudiée. Cette thèse a donc pour but d'évaluer les conséquences de l'utilisation d'activants chlorés sur la durabilité des liants contenant 50% de LHF. D'abord, une analyse des indicateurs de durabilité permet de voir comment l'activant modifie les propriétés de transfert du matériau durci ainsi que sur la structuration du réseau poreux. Cela permet de vérifier que l'activation à jeune âge n'hypothèque pas la durabilité des bétons avec laitier à long terme. Ensuite, une étude de l'état de corrosion des aciers dans ces mélanges est entreprise afin d'évaluer l'impact des activants chlorés, reconnus pour créer de la corrosion dans le béton armé. Des essais électrochimiques couplés à de l'observation directe ainsi qu'une étude microstructurale sur le devenir des chlorures au sein de la matrice cimentaire est effectuée. La faculté des mélanges à base de laitier à fixer les chlorures dans les hydrates est notamment étudiée. Enfin, le comportement des chlorures fixés est analysé, dans le cas où la carbonatation viendrait déstabiliser les hydrates. L'impact d'un relargage éventuel de chlorures est évalué à l'aide d'un modèle couplé carbonatation/diffusion des chlorures.

Etude de l'accélération des ciments à haute teneur en laitier de haut-fourneaux par du chlorure de calcium

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Author : Laurent Steger
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (126 download)

Book Synopsis Etude de l'accélération des ciments à haute teneur en laitier de haut-fourneaux par du chlorure de calcium by : Laurent Steger

Download or read book Etude de l'accélération des ciments à haute teneur en laitier de haut-fourneaux par du chlorure de calcium written by Laurent Steger and published by . This book was released on 2019 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les laitiers de hauts fourneaux sont un coproduit de l'industrie métallurgique, utilisés dans les ciments composés (CEM II & III) en substitution partielle du clinker portland et reconnus notamment pour leurs avantages en termes d'abaissement de chaleur d'hydratation, d'augmentation des performances de durabilité et de réduction du bilan carbone des bétons. Bien qu'atteignant des performances mécaniques ultimes comparables voire supérieures au ciment portland (CEM I), les liants proposant de forts taux de laitier voient le développement de leur résistance mécanique fortement ralenti. Ce phénomène s'explique par une réactivité plus faible du laitier qui nécessite des conditions "d'activation" pour réagir correctement. Il existe divers additifs ayant pour effet d'accélérer le durcissement des ciments, parmi lesquels le chlorure de calcium montre les meilleures performances. Les effets du chlorure de calcium sont particulièrement importants durant les premiers jours de l'hydratation. Cependant, leur usage est fortement règlementé en raison de l'effet corrosif du chlore sur les aciers du béton armé. Les objectifs de la thèse visent à étudier les mécanismes d'action du chlorure de calcium sur les matrices ciment-laitier durant les premiers jours d'hydratation. Un panel de techniques expérimentales a été utilisé pour identifier spécifiquement l'action des chlorures sur le laitier et le ciment. Des couplages DRX-Analyse d'Images MEB et RMN montrent que le chlorure de calcium entraîne une précipitation accélérée de portlandite et d'ettringite, issus de l'augmentation du taux de réaction du clinker. Le démarrage de la réaction du laitier s'opère après environ 12 heures, et n'est pas impacté par le chlorure de calcium. En revanche, le taux de réaction du laitier augmente en présence de l'accélérateur. On observe la formation rapide, importante et exclusive de Sels de Friedel en présence de chlorure, en remplacement des AFm sulfatés et/ou carbonatés. L'augmentation du taux de réaction des phases anhydres entraîne la précipitation de C-S-H supplémentaire. Cette formation de Sels de Friedel et de C-S-H provoquent un remplissage plus rapide de la porosité et l'augmentation des performances mécaniques.

Optimisation et durabilité des éco-bétons alcali-activés incorporant des laitiers de haut-fourneau et des cendres volantes

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Author : Alexandre Rodrigue
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (12 download)

Book Synopsis Optimisation et durabilité des éco-bétons alcali-activés incorporant des laitiers de haut-fourneau et des cendres volantes by : Alexandre Rodrigue

Download or read book Optimisation et durabilité des éco-bétons alcali-activés incorporant des laitiers de haut-fourneau et des cendres volantes written by Alexandre Rodrigue and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Résumé en anglais

A Practical Guide to Microstructural Analysis of Cementitious Materials

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Author : Karen Scrivener
Publisher : CRC Press
ISBN 13 : 1498738672
Total Pages : 540 pages
Book Rating : 4.4/5 (987 download)

Book Synopsis A Practical Guide to Microstructural Analysis of Cementitious Materials by : Karen Scrivener

Download or read book A Practical Guide to Microstructural Analysis of Cementitious Materials written by Karen Scrivener and published by CRC Press. This book was released on 2018-10-09 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Practical Guide from Top-Level Industry Scientists As advanced teaching and training in the development of cementitious materials increase, the need has emerged for an up-to-date practical guide to the field suitable for graduate students and junior and general practitioners. Get the Best Use of Different Techniques and Interpretations of the Results This edited volume provides the cement science community with a state-of-the-art overview of analytical techniques used in cement chemistry to study the hydration and microstructure of cements. Each chapter focuses on a specific technique, not only describing the basic principles behind the technique, but also providing essential, practical details on its application to the study of cement hydration. Each chapter sets out present best practice, and draws attention to the limitations and potential experimental pitfalls of the technique. Databases that supply examples and that support the analysis and interpretation of the experimental results strengthen a very valuable ready reference. Utilizing the day-to-day experience of practical experts in the field, this book: Covers sample preparation issues Discusses commonly used techniques for identifying and quantifying the phases making up cementitious materials (X-ray diffraction and thermogravimetric analysis) Presents good practice oncalorimetry and chemical shrinkage methods for studying cement hydration kinetics Examines two different applications of nuclear magnetic resonance (solid state NMR and proton relaxometry) Takes a look at electron microscopy, the preeminent microstructural characterization technique for cementitious materials Explains how to use and interpret mercury intrusion porosimetry Details techniques for powder characterization of cementitious materials Outlines the practical application of phase diagrams for hydrated cements Avoid common pitfalls by using A Practical Guide to Microstructural Analysis of Cementitious Materials. A one-of-a-kind reference providing the do’s and don’ts of cement chemistry, the book presents the latest research and development of characterisation techniques for cementitious materials, and serves as an invaluable resource for practicing professionals specializing in cement and concrete materials and other areas of cement and concrete technology.

Properties of Fresh and Hardened Concrete Containing Supplementary Cementitious Materials

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Author : Nele De Belie
Publisher : Springer
ISBN 13 : 3319706063
Total Pages : 336 pages
Book Rating : 4.3/5 (197 download)

Book Synopsis Properties of Fresh and Hardened Concrete Containing Supplementary Cementitious Materials by : Nele De Belie

Download or read book Properties of Fresh and Hardened Concrete Containing Supplementary Cementitious Materials written by Nele De Belie and published by Springer. This book was released on 2017-12-09 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents the current knowledge on the effect of SCMs (slag, fly ash, silica fume, limestone powder, metakaolin, natural pozzolans, rice husk ash, special SCMs, ternary blends) on the properties of fresh and hardened concrete (e.g. early strength development, workability, shrinkage) and curing requirements. Other topics treated in the book are postblending vs preblending, implications of SCM variability, interaction between SCM and commonly used admixtures (e.g. superplasticizers, air entrainers).

Cementitious Materials

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Author : Herbert Pöllmann
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 3110473720
Total Pages : 518 pages
Book Rating : 4.1/5 (14 download)

Book Synopsis Cementitious Materials by : Herbert Pöllmann

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

Pozzolanic and Cementitious Materials

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Author : V.M. Malhotra
Publisher : CRC Press
ISBN 13 : 1482296764
Total Pages : 204 pages
Book Rating : 4.4/5 (822 download)

Book Synopsis Pozzolanic and Cementitious Materials by : V.M. Malhotra

Download or read book Pozzolanic and Cementitious Materials written by V.M. Malhotra and published by CRC Press. This book was released on 2004-11-11 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an overview of the mineral admixtures used in concrete, including silica fume, slag, rice-husk ash, fly ash and natural pozzolans. It also includes the mineral/chemical composition of the admixtures, their chemical reactions with cement and as a method of recycling.

Philostratus

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Author : Philostratus (the Athenian)
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (31 download)

Book Synopsis Philostratus by : Philostratus (the Athenian)

Download or read book Philostratus written by Philostratus (the Athenian) and published by . This book was released on 1912 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Workability and Quality Control of Concrete

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Author : G H Tattersall
Publisher : CRC Press
ISBN 13 : 0203473140
Total Pages : 268 pages
Book Rating : 4.2/5 (34 download)

Book Synopsis Workability and Quality Control of Concrete by : G H Tattersall

Download or read book Workability and Quality Control of Concrete written by G H Tattersall and published by CRC Press. This book was released on 2003-09-02 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fresh concrete must be produced with the properties required for its intended applications, for example, it must be workable enough to flow into formwork, and to be compacted. This book deals with the measurement of the flow properties of fresh concrete and the factors which affect its workability. Aspects of concrete mixes and control of manufacture to produce optimum properties which relate to workability are covered.

The Setting of Cements and Plasters

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Author :
Publisher :
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.3/5 (117 download)

Book Synopsis The Setting of Cements and Plasters by :

Download or read book The Setting of Cements and Plasters written by and published by . This book was released on 1919 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Environmentally-Friendly and Sustainable Materials

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Author : Alisson Mendes Rodrigues
Publisher : Mdpi AG
ISBN 13 : 9783036531168
Total Pages : 106 pages
Book Rating : 4.5/5 (311 download)

Book Synopsis New Environmentally-Friendly and Sustainable Materials by : Alisson Mendes Rodrigues

Download or read book New Environmentally-Friendly and Sustainable Materials written by Alisson Mendes Rodrigues and published by Mdpi AG. This book was released on 2022-02-07 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the great challenges of contemporary society is establishing a sustainable way of life in harmony with the environment without compromising economic growth and technological development. On the other hand, the increase in the world population has driven per capita consumption, and consequently, the generation of waste. Because of this, new materials are being developed from different types of waste. This Special Issue aims to highlight and share recent scientific findings in the area of "New Environmentally Friendly and Sustainable Materials" manufactured from different material types (polymers, ceramics, metallics, and composites) and urban, industrial, mining and agricultural wastes. Moreover, scientific topics such as improving performance and durability, materials characterization, hybrid materials, foams and porous materials, trends and advances, and mechanical, electrical, magnetic, optical, and thermal properties will also be accepted.

Supplementary Cementing Materials for Concrete

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Author : V. M. Malhotra
Publisher : Canada Centre for Mineral and Energy Technology
ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.3/5 (91 download)

Book Synopsis Supplementary Cementing Materials for Concrete by : V. M. Malhotra

Download or read book Supplementary Cementing Materials for Concrete written by V. M. Malhotra and published by Canada Centre for Mineral and Energy Technology. This book was released on 1987 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compilation of 7 comprehensive state-of-the-art papers on supplementary cementing materials for use in concrete by international experts from Canada, Norway, and the United States. Coverage includes: natural pozzolans; flyash, a pozzolanic by-product of the combustion of pulverized coal in thermalpower stations; worldwide review of condensed silica fume; and ferrous andnon-ferrous slags.

Analecta: Or, Materials For a History of Remarkable Providences; Mostly Relating to Scotch Ministers and Christians

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Author : Robert Wodrow
Publisher : BoD – Books on Demand
ISBN 13 : 3385129664
Total Pages : 410 pages
Book Rating : 4.3/5 (851 download)

Book Synopsis Analecta: Or, Materials For a History of Remarkable Providences; Mostly Relating to Scotch Ministers and Christians by : Robert Wodrow

Download or read book Analecta: Or, Materials For a History of Remarkable Providences; Mostly Relating to Scotch Ministers and Christians written by Robert Wodrow and published by BoD – Books on Demand. This book was released on 2024-05-25 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprint of the original, first published in 1842.

Advanced Micro- & Mesoporous Materials

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Author : K. Hadjiivanov
Publisher : Heron Press
ISBN 13 : 9789545802393
Total Pages : 391 pages
Book Rating : 4.8/5 (23 download)

Book Synopsis Advanced Micro- & Mesoporous Materials by : K. Hadjiivanov

Download or read book Advanced Micro- & Mesoporous Materials written by K. Hadjiivanov and published by Heron Press. This book was released on 2008-10-31 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nanotechnology for Smart Concrete

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Author : Ghasan Fahim Huseien
Publisher : CRC Press
ISBN 13 : 1000538710
Total Pages : 238 pages
Book Rating : 4.0/5 (5 download)

Book Synopsis Nanotechnology for Smart Concrete by : Ghasan Fahim Huseien

Download or read book Nanotechnology for Smart Concrete written by Ghasan Fahim Huseien and published by CRC Press. This book was released on 2022-02-11 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials can markedly improve the mechanical properties of concrete, as well as reduce the porosity and enhance the durability of concrete. The application of nanotechnology in concrete is still in its infancy. However, an ever-growing demand for ultra-high-performance concrete and recurring environmental pollution caused by ordinary Portland cement has encouraged engineers to exploit nanotechnology in the construction industry. Nanotechnology for Smart Concrete discusses the advantages and applications of nanomaterials in the concrete industry, including high-strength performance, microstructural improvement, self-healing, energy storage, and coatings. The book Analyses the linkage of concrete materials with nanomaterials and nanostructures Discusses the applications of nanomaterials in the concrete industry, including energy storage in green buildings, anti-corrosive coatings, and inhibiting pathogens and viruses Covers self-healing concrete Explores safety considerations, sustainability, and environmental impact of nanoconcrete Includes an appendix of solved questions This comprehensive and innovative text serves as a useful reference for upper-level undergraduate students, graduate students, and professionals in the fields of Civil and Construction Engineering, Materials Science and Engineering, and Nanomaterials. Dr. Ghasan Fahim Huseien is a research fellow at the Department of Building, School of Design and Environment, National University of Singapore, Singapore. He received his PhD degree from the University of Technology Malaysia in 2017. Dr. Huseien has over 5 years of Applied R&D and 10 years of experience in manufacturing smart materials for sustainable building and smart cities. He has expertise in Advanced Sustainable Construction Materials covering Civil Engineering, Environmental Sciences and Engineering. He has authored and co-authored 50+ publications and technical reports, 3 books, and 15 book chapters, and participated in 25 national and international conferences/workshops. He is a peer reviewer for several international journals as well as Master’s and PhD students. He is a member of the Concrete Society of Malaysia and the American Concrete Institute. Dr. Nur Hafizah Abd Khalid is a Senior Lecturer at the School of Civil Engineering, Universiti Teknologi, Malaysia (UTM), and is a research member of the Construction Material Research Group (CMRG). She is currently a Council Member of the Concrete Society Malaysia (CSM). She earned her Master’s degree on structure and materials in 2011 from the Universiti Teknologi Malaysia. She received a Young Women Scientist Award (representing Malaysia) in 2014 in South Korea by KWSE/APNN. She is currently appointed as an Inviting Researcher at Hunan University, China, funded under the Talented Young Scientist Program (TYSP). Her research interests focus on concrete structural systems, advanced concrete technology (green concrete technology and fibre reinforced concrete), civil engineering materials, polymer composites, and bio-composites. Professor Dr. Jahangir Mirza has over 35 years of Applied Research and Development (R&D) as well as teaching experience. He has expertise in Advanced Sustainable Construction Materials covering Civil Engineering, Environmental Sciences and Engineering, Chemistry, Earth Sciences, Geology, and Architecture departments. He has been a Senior Scientist at the Research Institute of Hydro-Quebec (IREQ), Montreal, Canada since 1985. He has been a Visiting Research Professor for the Environmental Engineering program at the University of Guelph in Ontario, Canada since 2018.

The Ladybird Illustrated

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Author : D H Lawrence
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.5/5 (61 download)

Book Synopsis The Ladybird Illustrated by : D H Lawrence

Download or read book The Ladybird Illustrated written by D H Lawrence and published by . This book was released on 2020-11-09 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Ladybird is a long tale or novella by D. H. Lawrence. It was first drafted in 1915 as a short story entitled The Thimble. Lawrence rewrote and extended it under a new title in December 1921 and sent the final version to his English agent on 9 January 1922. It was collected with two other tales, The Captain's Doll and The Fox, and the three novellas were then published in London by Martin Secker in March 1923 under the title The Ladybird and in New York by Thomas Seltzer as The Captain's Doll in April 1923."

Notes on the Minor Prophets

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Author : Henry Allan Ironside
Publisher :
ISBN 13 :
Total Pages : 464 pages
Book Rating : 4.:/5 (54 download)

Book Synopsis Notes on the Minor Prophets by : Henry Allan Ironside

Download or read book Notes on the Minor Prophets written by Henry Allan Ironside and published by . This book was released on 1955 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: