Study on Microstructure and Rheological Properties of Cement-Chemical Admixtures-Water Dispersion System at Early Stage
Study on Microstructure and Rheological Properties of Cement-Chemical Admixtures-Water Dispersion System at Early Stage

Author: Yanrong Zhang

Publisher: Springer

Published: 2017-07-25

Total Pages: 271

ISBN-13: 9811045704

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This thesis studies the effects of superplasticizers, polyacrylate latexes and asphalt emulsions, which differ in molecular/particle size from nanometers to microns, on the rheological properties of fresh cement pastes (FCPs), as well as the action mechanisms involved. It systematically investigates the rheological properties and microstructure of cement-based materials, and elucidates the adsorption behaviors of polycarboxylate polymers with different functional groups and their effects on cement hydration. Moreover, it reveals how the working mechanism of naphthalene sulfonate formaldehyde (NSF) differs from that of polycarboxylate ether-based (PCE) superplasticizers. Lastly, it develops a conceptual microstructure model and two rheological equations. These findings lend theoretical support to the development of new chemical admixtures and new, higher-performance, cement-based composites.

Admixtures for Concrete - Improvement of Properties
Admixtures for Concrete - Improvement of Properties

Author: E. Vazques

Publisher: CRC Press

Published: 1990-05-03

Total Pages: 603

ISBN-13: 1482267489

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Chemical admixtures are used to modify the properties and behaviour of fresh and hardened concrete. They enable more economic construction and the achievement of special properties such as high strength or durability. This book presents new research information from an International RILEM Symposium on six main topics: workability, setting, strength

Application of Admixtures in Concrete
Application of Admixtures in Concrete

Author: A.M. Paillere

Publisher: CRC Press

Published: 2004-03-01

Total Pages: 140

ISBN-13: 0203626397

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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.

Chemical Admixtures for Concrete
Chemical Admixtures for Concrete

Author: Sandra Senft

Publisher: CRC Press

Published: 1999-06-24

Total Pages: 456

ISBN-13: 0203017242

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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

Concrete Admixtures Handbook, 2nd Ed.
Concrete Admixtures Handbook, 2nd Ed.

Author: V.S. Ramachandran

Publisher: William Andrew

Published: 1996-12-31

Total Pages: 1183

ISBN-13: 0815516541

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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.

Rheology of Fresh Cement and Concrete
Rheology of Fresh Cement and Concrete

Author: P.F.G. Banfill

Publisher: CRC Press

Published: 1990-09-27

Total Pages: 388

ISBN-13: 9780419153603

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This book brings together new research information on the flow behaviour of cementitious materials from the UK, France, Italy, Germany, Poland, Finland, USSR, USA and Japan, presented at the International Conference organised by the British Society of Rheology in March 1990.