Effect of Calcium Salts on Alkali Silicate Reaction Products by Reactive Aggregate

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  • 反応性骨材のアルカリシリカ反応生成物に及ぼすカルシウム塩の影響

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<p>This study investigated the effects of calcium propionate on alkali silicate reaction behaviors of water glass cullet used as model aggregate and natural aggregate under alkaline environment. Further, to clarify the effects of calcium salts on reaction products, calcium chloride and calcium hydroxide were also used. Calcium propionate was found to reduce expansion due to the alkali silicate reaction not only for water glass cullet but also for natural aggregate. Expansion was also reduced in the case of calcium chloride. Calcium ion may have reduced water absorption expansion in the reaction products.</p>

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