Journal of the Society of Materials Science, Japan
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
Influence of Alkali-Silica Reaction on Loading Carrying Behavior of Flexural Concrete Member
Yoshimori KUBOShin YAMAMOTOAtsushi HATTORIToyoaki MIYAGAWA
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2001 Volume 50 Issue 9 Pages 1013-1020

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Abstract
A number of cases of deterioration of concrete structures caused by Alkali-silica reaction (ASR) have been reported. In previous study, loading carrying behavior of reinforced concrete members were not changed by damage of ASR. However, concrete structures severely deteriorated due to ASR have been reported. Strengthening have been applied for concrete pier damaged by ASR in order to improve ductility and to reduce expansion.
In this study, the effect of transverse confinement on reducing alkali-silica expansion was investigated. The effect of ASR on the loading carrying behavior (strength and ductility) of concrete member and multiple damage due to ASR and steel corrosion was discussed. Transverse confinement with FRP sheet was useful for reducing expansion of concrete structures damaged by ASR. Ductility of concrete member damaged by ASR may be reduced. Furthermore, ductility of concrete member damaged multiply by ASR and steel corrosion was reduced largely.
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