Download PDF by V.S. Ramachandran: Concrete Admixtures Handbook. Properties, Science, and

By V.S. Ramachandran

ISBN-10: 0815513739

ISBN-13: 9780815513735

Content material:
Preface to the second one Edition

, Pages vii-viii, V.S. Ramachandran
Preface to the 1st Edition

, Pages ix-x, V.S. Ramachandran
About the Editor

, Page xi
Contributors

, Pages xiii-xiv
1 - Concrete Science

, Pages 1-66, V.S. Ramachandran, Rolf F. Feldman
2 - learn thoughts, criteria and Specifications

, Pages 67-94, V.S. Ramachandran
3 - Admixture Interactions in Concrete

, Pages 95-136, V.S. Ramachandran
4 - Chemical Admixtures—Recent Developments

, Pages 137-184, V.S. Ramachandran
5 - Accelerators

, Pages 185-285, V.S. Ramachandran
6 - Water Reducers/Retarders

, Pages 286-409, Mario M. Collepardi
7 - Superplasticizers

, Pages 410-517, V.S. Ramachandran, V. Mohan Malhotra
8 - Air-Entraining Admixtures

, Pages 518-557, William L. Dolch
9 - Polymer-Modified Mortars and Concretes

, Pages 558-656, Yoshihiko Ohama, V.S. Ramachandran
10 - Mineral Admixtures

, Pages 657-739, R. Paul Lohtia, Ramesh C. Joshi
11 - Antifreezing Admixtures

, Pages 740-799, Victor B. Ratinov, Tatyana I. Rozenberg
12 - High-Volume Fly Ash and Slag Concrete

, Pages 800-838, V. Mohan Malhotra
13 - Admixtures for fix and recovery of Concrete

, Pages 839-877, Noel P. Mailvaganam
14 - Alkali-Aggregate enlargement and Corrosion Inhibiting Admixtures

, Pages 878-938, V.S. Ramachandran
15 - Miscellaneous Admixtures

, Pages 939-1024, Noel P. Mailvaganam
16 - Batching and allotting of Admixtures

, Pages 1025-1044, Noel P. Mailvaganam
17 - Admixture Formulations

, Pages 1045-1076, V.S. Ramachandran, Vasundhara S. Ramachandran
18 - Admixtures For Oilwell Cements

, Pages 1077-1111, John Bensted
Index

, Pages 1112-1153

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Extra info for Concrete Admixtures Handbook. Properties, Science, and Technology

Example text

Three types of alkali-aggregate reactions are mentioned in the literature: alkali-silica reaction,1701-1721alkali-carbonate reaction, and alkalisilicate reaction. The alkali-silicate reaction has not received general recognition as a separate entity. Alkali-silica reactions are caused by the presence of opal, vitreous volcanic rocks, and those containing more than 90% silica. The alkali-carbonate reaction is different from the alkali-silica 48 Concrete Admixtures Handbook reaction in forming different products.

These problems could largely be avoided if the preformed bubble reservoirs could be added in the form of particles. Two inventions have used this principle. The plastic microsphereslgll and porous particles[g21 which have the required air are added to concrete. It has been shown that addition of particles, which correspond to less than 2% equivalent air, is similar to conventional air-entrained concrete containing 5% air. Control of the right size and spacing of air pockets in these particles can add to the effectiveness to frost action.

Maximum dilation effects are observed in solutions containing 59% NaCl. The explanation is that the vapor pressure of the saline solution is decreased (with respect to water) and the 50 Concrete Admixtures Handbook tendency for the water to migrate from the smaller pores will be lower for the saline solution in comparison with that for pure water. Consequently, on freezing, greater dilation will occur in the salt-containing specimen than in the salt-free specimen. At high salt concentrations, other phenomena, such as a change in the range of freezing temperatures or the effect of high viscosity of the saline solution on the mechanical properties of the body, have to be considered.

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Concrete Admixtures Handbook. Properties, Science, and Technology by V.S. Ramachandran


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