[V-07] Examination of re-ASR behavior of ASR reactivity recycled aggregate and control technology
Keywords:ASR reaction, Recycle aggregate, Carbonation
As one of the problem of recycled concrete, there is a dangerous of occurrence of ASR. Here, the concrete using the aggregate which has ASR reactivity was made into recycled aggregate, and re-ASR behavior was quantitatively examined by manufacturing recycled concrete. The recycled aggregate produced H and L, and further confirmed the effect of the carbonation technology of the recycled aggregate as an improving method. As a result, although the regenerated aggregate with high reactivity was highly reactive in either H or L, it was confirmed that re-ASR was suppressed by using carbonation technology.
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