2014•Guisuanyan tongbaoRequires access

Influence of Limestone Powder on Hydration Characteristics of Cement Pastes

Zheng Ya-na

Abstract

The effect of ground limestone on hydration characteristics of cement pastes were studied by TAM air isothermal calorimeter,TG-DSC and XRD. The results show that the hydration process of cement is changed by limestone powder. Limestone powder shortens the dormant stage and accelerates the hydration reactions during the acceleration period. Limestone powder causes the formation of calcium carboaluminate hydrate,which indicates hydration productes of cement pastes are influenced by limestone powder.

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Key concepts: Cement, Materials science, Hydrate, Isothermal process, Mineralogy, Metallurgy, Composite material, Chemical engineering