Alkali-aggregate reactivity (AAR) facts book.

2013PDFTech ReportFHWA-HIF-13-019DTFH61-06-D-00035Alkali aggregate reactionsReactions in concreteChemical reactivityAlkali-silica reactivityalkali-aggregate reactionreactive aggregatesASRconcrete durabilitysymptomsidentificationpreventionmitigationlithiumUnited States. Federal Highway Administration. Office of Pavement TechnologyThomas, M.D.A.Fournier, B.Folliard, K.J.Transtec Group, Inc.United States. Federal Highway Administration. Office of Pavement TechnologyFederal Highway AdministrationThis document provides detailed information on alkali-aggregate reactivity (AAR). It primarily discusses alkali-silica reaction (ASR), covering the chemistry, symptoms, test methods, prevention, specifications, diagnosis and prognosis, and mitigation. Alkali-carbonate reaction (ACR) is also addressed