Download or read book Symposium on Effect of Water reducing Admixtures and Set retarding Admixtures on Properties of Concrete written by and published by ASTM International. This book was released on 1960 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Admixtures written by V.H. Dodson and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Admixtures Handbook written by V.S. Ramachandran and published by William Andrew. This book was released on 1996-12-31 with total page 1183 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Significance of Tests and Properties of Concrete and Concrete Making Materials written by and published by ASTM International. This book was released on 1978 with total page 875 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Significance of Tests and Properties of Concrete and Concrete Making Materials written by C. H. Best and published by ASTM International. This book was released on 1985-02 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Admixtures in Concrete written by National Research Council (U.S.). Highway Research Board. Committee on Chemical Additions and Admixtures for Concrete and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: An admixture is any material other than water, aggregates, and hydraulic cement that is used as an ingredient of a concrete or mortar mixture and added to the batch immediately before or during mixing. 4 types of admixtures are discussed: (1) accelerators, the most common of which is calcium chloride; (2) air-entraining, to protect the concrete against the damage it may suffer if the paste becomes saturated with water and then freezes; (3) retarders and water reducers, which extend setting time 30 to 50 percent to compensate for placement temperatures, to avoid cold joints, or to avoid undesirable effects of displacements and deflections; and (4) pozzolans, which react with hydroxides to form compounds with cementitious properties, and usually produce a lower cost concrete.
Download or read book Application of Admixtures in Concrete written by A.M. Paillere and published by CRC Press. This book was released on 2004-03-01 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a thorough review of the properties and use of the principal chemical admixtures for use in concrete. Concise and clearly presented, the book includes extensive references to key sources of information. The presentation of each admixture is in a standard format, which helps the reader to find relevant information easily.
Download or read book Advanced Concrete Technology written by Zongjin Li and published by John Wiley & Sons. This book was released on 2011-01-11 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past two decades concrete has enjoyed a renewed level of research and testing, resulting in the development of many new types of concrete. Through the use of various additives, production techniques and chemical processes, there is now a great degree of control over the properties of specific concretes for a wide range of applications. New theories, models and testing techniques have also been developed to push the envelope of concrete as a building material. There is no current textbook which brings all of these advancements together in a single volume. This book aims to bridge the gap between the traditional concrete technologies and the emerging state-of-the-art technologies which are gaining wider use.
Download or read book Chemical Admixtures for Concrete written by Sandra Senft and published by CRC Press. This book was released on 1999-06-24 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical admixtures are used in concrete mixtures to produce particular engineering properties such as rapid hardening, water-proofing or resistance to cold. Chemical Admixtures for Concrete surveys recent developments in admixture technology, explaining the mechanisms by which admixtures produce their effects, the various types of admixtures avail
Download or read book Special Report written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1971 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Waste Materials Used in Concrete Manufacturing written by Satish Chandra and published by Elsevier. This book was released on 1996-12-31 with total page 673 pages. Available in PDF, EPUB and Kindle. Book excerpt: The environmental aspects involved in the production and use of cement, concrete and other building materials are of growing importance. CO2 emissions are 0.8-1.3 ton/ton of cement production in dry process. SO2 emission is also very high, but is dependent upon the type of fuel used. Energy consumption is also very high at 100-150 KWT/ton of cement produced. It is costly to erect new cement plants. Substitution of waste materials will conserve dwindling resources, and will avoid the environmental and ecological damages caused by quarrying and exploitation of the raw materials for making cement. To some extent, it will help to solve the problem otherwise encountered in disposing of the wastes. Partial replacement of clinker or portland cement by slag, fly ash, silica fume and natural rock minerals illustrates these aspects. Partial replacement by natural materials that require little or no processing, such as pozzolans, calcined clays, etc., saves energy and decreases emission of gases. The output of waste materials suitable as cement replacement (slags, fly ashes, silica fumes, rice husk ash, etc.) is more than double that of cement production.These waste materials can partly be used, or processed, to produce materials suitable as aggregates or fillers in concrete. These can also be used as clinker raw materials, or processed into cementing systems. New grinding and mixing technology will make the use of these secondary materials simpler. Developments in chemical admixtures: superplasticizers, air entraining agents, etc., help in controlling production techniques and, in achieving the desired properties in concrete.Use of waste products is not only a partial solution to environmental and ecological problems; it significantly improves the microstructure, and consequently the durability properties of concrete, which are difficult to achieve by the use of pure portland cement. The aim is not only to make the cements and concrete less expensive, but to provide a blend of tailored properties of waste materials and portland cements suitable for specified purpose. This requires a better understanding of chemistry, and materials science.There is an increasing demand for better understanding of material properties, as well as better control of the microstructure developing in the construction material, to increase durability. The combination of different binders and modifiers to produce cheaper and more durable building materials will solve to some extent the ecological and environmental problems.
Download or read book Science and Technology of Concrete Admixtures written by Pierre-Claude Aïtcin and published by Woodhead Publishing. This book was released on 2015-11-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Technology of Concrete Admixtures presents admixtures from both a theoretical and practical point-of-view. The authors emphasize key concepts that can be used to better understand the working mechanisms of these products by presenting a concise overview on the fundamental behavior of Portland cement and hydraulic binders as well as their chemical admixtures, also discussing recent effects in concrete in terms of rheology, mechanics, durability, and sustainability, but never forgetting the fundamental role played by the water/binder ratio and proper curing in concrete technology. Part One presents basic knowledge on Portland cement and concrete, while Part Two deals with the chemical and physical background needed to better understand what admixtures are chemically, and through which mechanism they modify the properties of the fresh and hardened concrete. Subsequent sections present discussions on admixtures technology and two particular types of concrete, self-consolidating and ultra-high strength concretes, with final remarks on their future. - Combines the knowledge of two leading authors to present both the scientific and technology of admixtures - Explains what admixtures are from a chemical point-of-view and illustrates by which mechanisms they modify the properties of fresh and hardened concrete - Presents a fundamental, practical, and innovative reference book on the topic - Contains three detailed appendices that can be used to learn how to use admixtures more efficiently
Download or read book Significance of Tests and Properties of Concrete and Concrete making Materials written by American Society for Testing and Materials. Committee C-9 on Concrete and Concrete Aggregates and published by . This book was released on 1966 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete in Hot Environments written by I. Soroka and published by CRC Press. This book was released on 1993-09-16 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elevated temperatures are known to affect the properties of both fresh and hardened concrete. This book describes in detail these effects and explains the mechanisms involved with particular reference to their practical aspects.
Download or read book Special Report Highway Research Board written by National Research Council (U.S.). Highway Research Board and published by . This book was released on 1971 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Specifications for Structural Concrete ACI 301 05 with Selected ACI References written by American Concrete Institute and published by American Concrete Institute. This book was released on 2005 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the American Concrete Institute written by American Concrete Institute and published by . This book was released on 1976 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each number includes "Synopsis of recent articles."
