FHWA PUBLISHES ALKALI-AGGREGATE REACTIVITY REFERENCE

FHWA’s new Alkali- Aggregate Reactivity Facts Book

From the Federal Highway Administration’s Focus newsletter… Alkali-aggregate reactivity (AAR) can occur in concrete structures and pavements as both alkali-silica reaction (ASR) and  alkalicarbonate reaction (ACR). FHWA’s new Alkali-Aggregate Reactivity Facts Book (Pub. No. FHWA-HIF-13-019) discusses both types of reaction but concentrates on ASR, as cases of ACR are more limited.

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