221.1R-98: Report on Alkali-Aggregate Reactivity (Reapproved 2008)

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Title: 221.1R-98: Report on Alkali-Aggregate Reactivity (Reapproved 2008)

Author(s): ACI Committee 221

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 31

Keywords: alkali, aggregate

Date: 8/19/1988

Abstract:
Information that is currently available on alkali-aggregate reactivity (AAR), including alkali-silica reactivity (ASR) and alkali-carbonate reactivity (ACR) is summarized in this report. Chapters are included that provide an overview of the nature of each reaction, methods oftesting for potential expansion of aggregates and cement-aggregate combinations, measures to prevent deleterious reactions, and recommendations for evaluation and repair of existing structures.