Quantitative Evaluation of Multiplier Effect of Concrete Expansion and Reinforcement
2010
Many concrete structures deteriorated by Alkali Silica Reaction (ASR) are still found in Japan. In fact, the continuous propagation after being repaired has been also reported. The solution for the ASR expansion mechanism and the confinement effect of reinforcements might contribute to the reasonable repair and economical design in the future. This research focused on the effect of the reinforcement on ASR. The experimental and analytical studies provided the evidence that the size and shape of the specimens and the direction of the arrangement of reinforcements might affect the amount of expansion and crack patterns. The chemical analysis was performed by X-ray equipment and the possibility of this technique was indicated to make clear the ASR expansion mechanism.
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