Effects of admixtures and alkali compounds on alkali aggregate reaction
β Scribed by Kiyoshi Okada; Tohru Yoshikawa; Motoji Himeno
- Publisher
- Elsevier Science
- Year
- 1988
- Weight
- 230 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0262-5075
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Products characterised by X-ray diffraction peaks at 15.6, 13.1 and 10.8 A, analogous to those formed in the alkali-aggregate reaction, have been prepared by reacting calcium hydroxide with solutions of potassium water glasses at temperatures between 50 and 90Β°C. The 13.1/~ phase is a dehydration pr
In this paper a simple continuum theory, as recently proposed by Pietruszczak (Znt. J. Computers Struct., 58, 1093-1099 (1996)), is applied to describe the mechanical effects of the alkali-aggregate reaction in concrete structures. The formation of alkali-silica gel leads to a progressive expansion