Full Description
AASHTO T 380-18 allows detection of the potential for deleterious alkali-silica reaction of aggregatein miniature concrete prisms within 56 days (8 weeks) for most of the aggregates. An additional28 days (4 weeks) may be necessary in the case of low/slow reacting aggregates to assess theirpotential reactivity. To assess the effectiveness of mitigation measures of SCMs (supplementarycementitious materials, such as fly ash, slag, silica fume, and others); the test method is conductedfor 56 days.