【摘 要】
：
The mortar specimens were prepared according to ISO 679: 2009.The cements used were ordinary Portland cement(OPC), high early strength Portland cement(HPC) and Portland blast furnace slag cement (clas
【机 构】
：
Basic Research on Cement / Environment Group, Japan Cement Association, Tokyo 114-0003, Japan
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
The mortar specimens were prepared according to ISO 679: 2009.The cements used were ordinary Portland cement(OPC), high early strength Portland cement(HPC) and Portland blast furnace slag cement (class B)(BFSC).These mortar specimens were cured in water at 20 ℃ for 7 days.Then, these mortar specimens were sliced in thickness of 10mm.The sliced mortar specimens were dried in an atmosphere of 11% RH, 60 % RH and 80 % RH respectively.The shrinkage strain and the amount of weight loss were measured.On the other hand, the C-S-H was prepared by hydration of C3S.The synthesized C-S-H was dried until constant in an atmosphere of 11% RH, 33% RH, 60% RH and 85 % RH respectively.The H2O/SiO2 of the dried C-S-H was determined by TG-DTA.
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