基于水泥科学发展以及实验室合成方法多样化,介绍了水化硅酸钙(C-S-H)的主要合成方法,包括沉淀法、溶胶凝胶法、水热合成法等.根据Gibbs自由能最小化原理可以对不同的实验体系进行水化产物的模拟计算.结果表明:在CaCl2-Si(OH)4-NaOH溶液体系中,随着初始Ca/Si比的增加,合成的C-S-H的Ca/Si比亦增加；在白水泥-石灰石体系中,石灰石的加入使单硫型硫铝酸钙逐渐为单碳型碳铝酸钙替代,抑制了钙矾石向单硫型硫铝酸钙的转化,使钙矾石稳定存在.计算结果与实验结果基本一致,热力学计算可以应用于水化产物的分析.
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