Mitigating Alkali Silica reactions in the absence of SCMs: A review of empirical studies

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Conference Proceeding
FIB 2018 - Proceedings for the 2018 fib Congress: Better, Smarter, Stronger, 2019, pp. 3829 - 3844
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© 2019 by the fib. All rights reserved. The mechanism and severity of alkali-silica reaction (ASR) is subjective to the conditions of the availability of moisture and sufficient alkali content, and the presence of reactive aggregates. Since the 1940s, key focus has been placed on the reduction of alkali content by way of addition of supplementary cementitious materials (SCMs). However, the cost of SCMs and the realization that the availability of these materials could become limited in the untold future has influenced some researchers to investigate the development of protocols for the use of aggregates minimizing the likelihood of potential severe ASR. This paper presents a summary and review of the various strategies that have been adopted in recent years for the mitigation of ASR without utilising the addition of SCMs.
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