Creep and drying shrinkage of calcium silicate pastes IV. Effects of accelerated curing

Creep and drying shrinkage of calcium silicate pastes IV. Effects of accelerated curing
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硅酸钙浆体的蠕变和干燥收缩 IV．

DOI：
10.1016/0008-8846(79)90022-x
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
S. Mindess
S. Mindess
中科院分区：
--
文献类型：
--
作者：
A. Bentur;N. Milestone;J. Young;S. Mindess

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相关变形和结构变化的证据是在含有 CaCl2 的 C3S 糊剂以及在 65°C 下固化的 C3S 糊剂或 C3S/C2S 共混物上测量的。结论是，即使在水合良好的糊状物干燥时，CaCl2 的添加也增强了“孔隙成分”在控制不可逆应变方面的作用。在 65°C 时形成矿石稳定的 CSH 可以解释观察到的这些膏体随时间变化的减少。尽管孔径分布在 65°C 时发生变化，但不认为会影响水合良好的糊剂中的不可逆应变。
The dependent deformations and evidence of structural changes were measured on pastes of C3S containing CaCl2, and on pastes of C3S or a C3S/C2S blend cured at 65°C. It was concluded that the addition of CaCl2enhances the role of the “pore component” in controlling irreversible strains even when well-hydrated pastes are dried. The formation of ore stable CSH at 65°C can explain the reduction in time-dependent deformations observed for these pastes. Even though a change in pore size distribution occurs at 65°C, it is not considered to affect irreversible strains in well-hydrated pastes.