【摘 要】
：
Tricalcium silicate (C3S) is a compound which reacts with water to give hydration products (C-S-H and CH).The transformation, i.e.the hydration, occurs by s
【机 构】
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BASF Construction Materials & Systems Research, Trostberg, Germany
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
Tricalcium silicate (C3S) is a compound which reacts with water to give hydration products (C-S-H and CH).The transformation, i.e.the hydration, occurs by simultaneous dissolution-precipitation reactions.The different factors influencing the hydration are the reactive surface areas, i.e., the growth surface of C-S-H and the dissolution surface of C3S, and, the composition of the pore solution.When only pure C3S is mixed with water,the solution contains only calcium, hydroxide and silicate ions.The three species are the constituents of C3S and C-S-H.They determine both interfacial reaction rates: the C3S dissolution rate through the undersaturation with respect to the C3S solubility, and, the C-S-H precipitation rate through the supersaturation with respect to the C-S-H solubility.
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