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- W49396301 abstract "Temperature affects the rate of strength development of cement-based material and consequently, the time needed to reach a required strength. Concrete cured at high temperature gains strength very fast but its loss in ultimate strength is usually observed. The increase in early strength at higher temperature is due to the fact that the cement simply hydrates more rapidly, but the decrease in later strength is not easy to explain. In this paper, authors aim at a possible explanation of that decrease in later strength. The two-dimensional simulation was carried out using multi-component, digital-image-based model of cement hydration (2). Taking into account the effect of temperature on hydration rate, specific density and on chemical composition of hydration product, the inverse effects of temperature on strength and porosity of cement paste were obtained. Gefspace ratio model was found to be suitable for the prediction of strength of cement paste cured at various temperatures." @default.
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- W49396301 date "1999-12-01" @default.
- W49396301 modified "2023-09-23" @default.
- W49396301 title "研究速報 : TWO-Dimensional Computer Simulation of Cement Hydration (2) : Effect of Temperature on Hydration Process Cement" @default.
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