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This document discusses tests for assessing sulfate attack and alkali-carbonate reactivity (ACR) in concrete. It describes the causes and signs of sulfate attack, including ettringite and gypsum formation, and tests concrete according to ASTM C1012 to evaluate sulfate resistance. It also explains that ACR results from a reaction between alkalis and certain carbonate rocks, and that there is no known prevention method other than avoiding susceptible aggregates. Tests for evaluating aggregates for ACR suscept

Author

Irfan Munir

Language

EN