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介绍了水化硅酸钙凝胶(C-S-H)的几种主要结构模型,重点阐述了纳米尺度的凝胶模型及其发展。在纳米凝胶模型中C-S-H是由最小结构单元近似为直径小于5nm的胶束堆积而成。根据胶束堆积密度的差异,C-S-H分为高密度和低密度2种不同的凝胶相。总结了现代微观测试手段对C-S-H纳米模型的验证结果,分析了当前研究存在的问题并对今后研究提出了建议。
Several main structural models of hydrated calcium silicate gel (C-S-H) were introduced, focusing on the nanoscale gel model and its development. C-S-H in the nano-gel model is composed of micelles with the smallest structural unit approximately smaller than 5 nm in diameter. According to the difference of micellar bulk density, C-S-H is divided into two kinds of high-density and low-density gel phase. The verification results of C-S-H nanometer model by modern microscopic test methods are summarized, the problems existing in the current research are analyzed, and suggestions for future research are put forward.