By Dr. Christopher R. Kelson, PhD, PG, Senior Geologist and Steven N. Moore, PE, Senior Engineer

Under conditions of high alkali cement, reactive aggregates, and water presence, Alkali-Silica Reaction (ASR) can cause expansion and cracking within concrete.  If left unmitigated, ASR can cause serious deterioration and damage to concrete structures over time. The best way to mitigate ASR is to avoid it altogether by using non-reactive aggregates. ATL uses standardized test methods for determining the potential reactivity of aggregates.

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