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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Effect of Thermal Changes on Expansion Caused by Alkali Aggregate Reaction in a Concrete Retaining Wall
Author(s): A. Yonekura, H. Ito, K. Kuribayashi,
Y. Fujita, and M. Usio
Publication: Special Publication
Appears on pages(s): 907-921
Keywords: alkali-silica reaction; cracking; environmental condition; residual expansion; temperature distribution
Abstract:The degree of deterioration of structures due to alkali-silica reaction (ASR) de- pends not only on the reactive aggregate or cement contained in concrete hut also on the environmental condition under which the structure is in service or the constraints on concrete. Concrete cores were cut from an actual retaining wall that has deteriorated due to ASR. The cores were taken from drillholes extending from the front through hack faces of the wall. Then, the environmental conditions were studied with respect to temperature and humidity by elemental analysis, strength test and identification of temperature distribution. As a result, it was confirmed that temperature had a close relation to ASR, and that ASR caused outstanding cracking to a depth of 300 mm from the front face of the retaining wall that was subject to high temperature due to direct sunlight and temperature fluctuated in the 300-mm range.
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