The effects of ASR on the properties of concrete and the implications for assessment

摘要

This paper discusses the nature of damage caused to concrete by alkali silica reaction (ASR). The effect of this damage on the behav- iour of structural members is discussed. Recommendations are then made as to the best way of estimating the properties of con- crete in actual structural members. It is shown that, generally, much of the damage caused by ASR is offset by secondary effects. It is proposed that members can be analysed in a similar manner to unaffected members with revised concrete properties. However, some additional checks are required.