Laboratory assessment of alkali contribution by aggregates to concrete and application to concrete structures affected by alkali-silica reactivity

By M. Bérubé, J. Duchesne, J. Dorion, M. Rivest. 2002

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Alkali-silica reaction: Current understanding of the reaction mechanisms and the knowledge gaps (2015, background): “known to release alkalis include alkali feldspars, micas, zeolites, and clay minerals [92–97].”
Alkali-silica reactions (ASR): literature review on parameters influencing laboratory performance testing (2012, methodology): “ The addition of alkalis may accelerate the release of alkalis from certain aggregates ([81], [148], [83], [84]).”
A mathematical model for the kinetics of the alkali–silica chemical reaction (2015, background): “If the pH is above a critical value, the alkali-containing silicates will release alkalis through the interactionwith the alkaline pore solution in concrete and the reactionwill bemore severe than otherwise [5,6] In the followingmodel, no distinction is made as to the source of the alkali.”