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A reply to a discussion by S. Chatterji of the paper “Mechanism of alkali-silica reaction and the significance of calcium hydroxide”

✍ Scribed by H. Wang; J.E. Gillott

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
128 KB
Volume
22
Category
Article
ISSN
0008-8846

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✦ Synopsis

We would like to thank Dr. Chatterji for his interesting and detailed comments on our paper. We agree with Dr. Chatterji that our thinking owes a great deal to the pioneering work of Powers and Steinour though our new data has led us to propose what we feel are significant changes to the original hypothesis. Dr. Chatterji discusses the breakdown of the Si-O-Si bridge illustrated in Fig. 2 of our paper and the possibility of ion exchange reactions. We feel that the details of this reaction are likely to be complex and our Figure is intended only to illustrate the process schematically.

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This is a very interesting and informative paper. In this paper the authors have attempted to resuscitate Powers-Steinour hypothesis of alkali-silica reaction. In their scheme calcium ion has given an added role of the rejuvenator of alkali hydroxide and the effects of the hydraulic radii of differe

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