mineral admixtures in cement and concrete

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Cement And Concrete Mineral Admixtures

Author : Mustafa Tokyay
ISBN : 9781498716550
Genre : Technology & Engineering
File Size : 50. 42 MB
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Supplementary cementing materials and other mineral admixtures are being used in increasing amounts in both cement and concrete. Their main technical benefits are that they enhance the workability of fresh concrete and the durability of hardened concrete. Indeed, they affect almost every property of the concrete. Their economic and ecological benefits may be just as significant, and their use can be expected to increase as concrete remains the most common construction material. Cement and Concrete Mineral Admixtures concentrates mostly on natural pozzolans, fly ashes, ground granulated blast furnace slag, silica fume and limestone powder, namely the most commonly used mineral admixtures. Others such as metakaolin, rice husk ash, expanded clays and shales are also discussed. Their chemical, mineralogical, and physical properties are outlined. The influence of mineral admixtures on the hydration of cementitious systems, and the properties of fresh and hardened concrete in which they are used are emphasized. International standards are reviewed. The basics of concrete mix proportioning with mineral admixtures are outlined. The possibilities of using mineral admixtures as constituents of special concretes such as self-compacting, reactive powder, roller-compacted concretes and special non-portland, low-cost, low-energy and/or low-CO2 cements such as alinite, calcium sulfoaluminate, and belitic cements and alkali-activated binders are also covered. The book is a comprehensive reference for senior undergraduate and graduate students and researchers in the fields of cement and concrete, and for cement and concrete practitioners.

Mineral Admixtures In Cement And Concrete

Author : Jayant D. Bapat
ISBN : 9781439817933
Genre : Technology & Engineering
File Size : 90. 34 MB
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Written to meet the requirements of engineers working in construction and concrete manufacturing, Mineral Admixtures in Cement and Concrete focuses on how to make more workable and durable concrete using mineral admixtures. In particular, it covers pulverized fuel ash (PFA), blast furnace slag (BFS), silica fume (SF), rice husk ash (RHA), and metakaolin (MK), as well as some new admixtures currently under investigation. For each mineral admixture, the book looks at manufacturing and processing, physical characteristics, chemical and mineralogical composition, quality control, and reported experiences. It also examines the provisions of national standards on the admixture’s addition to cement and concrete. References to microstructures and chemistry are kept to a minimum and only discussed to the extent necessary to help readers apply the admixtures in practice. The book also addresses hydration, presenting the relevant chemistry and detailing the impact of adding mineral admixtures to concrete. A chapter on strength and durability explains the mechanisms, models, and standards related to concrete deterioration and how to mitigate carbonation, alkali-aggregate reactions, chloride attack and corrosion of reinforcement, external and internal sulphate attack, decalcification, and freeze-thaw action. This book is a useful reference for practicing engineers and students alike. It brings together, in one volume, information on the materials, hydration, and the strength and durability of cement and concrete with mineral admixtures. Offering a deeper understanding of mineral admixtures, it encourages engineers to more effectively use these and other wastes in cement and concrete to support more sustainable growth of the cement and construction industry.

Mineral Admixtures In Cement And Concrete

Author : S. N. Ghosh
ISBN : 8185522049
Genre : Cement
File Size : 32. 99 MB
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Pozzolanic And Cementitious Materials

Author : V.M. Malhotra
ISBN : 9781482296761
Genre : Architecture
File Size : 52. 7 MB
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This series will present twenty short, sharply-focused tracts, each one covering one of the many aspects of concrete technology: materials, design, construction, testing, and other significant aspects. Volume 1 provides a complete overview of the mineral admixtures used in concrete, including silica fume, slag, rice-husk ash, fly ash, and natural pozzolans. This book will include the mineral and chemical composition of the admixtures, their chemical reactions with cement and as a method of recycling.

Concrete Admixtures Handbook 2nd Ed

Author : V.S. Ramachandran
ISBN : 9780815516545
Genre : Technology & Engineering
File Size : 77. 5 MB
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Since the publication of the first edition ten years ago, significant developments have occurred in the use of admixtures in concrete. Eight new chapters and a full update of the preceding ten chapters bring this book up to date; reflecting the relative advances made in the science and technology of different groups of admixtures. The increased role and development of admixtures in concrete technology is evidenced by a number of conferences, publications, and novel admixtures available in the market place. These developments in the field caused the modification of many chapters in the first edition in order to reflect the advances. Although individual chapters refer to standards and specifications of admixtures, those only interested in the standards or techniques used in investigating admixtures will find the second chapter (Research Technologies, Standards, and Specifications) useful. Admixtures are not as inert as may be presumed. They may chemically interact with the constituents of concrete and affect the properties of the fresh and hardened concrete and its durability. The third chapter deals with these aspects. It was important to devote a chapter to recent attempts in developing new admixtures.

Fly Ash In Concrete

Author : R C Joshi
ISBN : 9056995804
Genre : Technology & Engineering
File Size : 29. 79 MB
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Since it was first recognized as a mineral admixture for concrete in the 1930's, fly ash has been the subject of worldwide study as researchers work to maximize its economical and environmental benefits. In recent years, investigations have focused on the physical, chemical and mineralogical characteristics of fly ash and their specific correlation to the performance of concrete. This book collects the latest results from these various studies and offers a complete review of the advantages of fly ash as an admixture in concrete, including strength development and improved chemical resistance and durability. A review of the current international standards on fly ash usage is provided, in addition to an extensive reference list and a complete survey of various other fly ash products, such as bricks, mineral wool and gypsum wall boards, as well as the use of fly ash in waste management.

Pro 32 International Conference On Advances In Concrete And Structures Icacs 2003 Volume 2

Author : Ying-shu Yuan
ISBN : 2912143403
Genre : Concrete
File Size : 40. 88 MB
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Frost Resistance Of Portland Cement Concrete Prepared With Chemical And Mineral Admixtures At Marginal Air Content

Author : Shamshad Ahmad Khan
ISBN : MSU:31293007935764
Genre : Portland cement
File Size : 42. 11 MB
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Sulfate Attack On Concrete

Author : J. Marchand
ISBN : 0203301625
Genre : Technology & Engineering
File Size : 24. 19 MB
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Sulfate Attack on Concrete provides a comprehensive reference to this important subject. It covers: a short history of concrete deterioration due to sulfate attack, the origin of sulfates in concrete, the importance of appropriate concrete processing, forms and physical-chemical mechanisms of concrete deterioration due to sulfates, preventative measures, standardisation and numerous case histories. This book is an essential reference for industry practitioners involved in concrete science and engineering, and also for academics and researchers of materials science and concrete technology.

Significance Of Tests And Properties Of Concrete And Concrete Making Materials

Author : Paul Klieger
ISBN : 9780803120532
Genre : Technology & Engineering
File Size : 39. 33 MB
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