硅酸盐水泥-矿渣复合浆体的水化反应进程研究  

Hydration Process of Portland Cement-slag Composite Pastes

作　　者：贾艳涛[1] 孙伟[2] 郑克仁[3] 郭丽萍[2] 

机构地区：[1]河海大学力学与材料学院,南京210098 [2]东南大学材料科学与工程学院,南京211189 [3]中南大学土木工程学院,长沙410075

出　　处：《硅酸盐通报》2015年第6期1548-1553,1564,共7页Bulletin of the Chinese Ceramic Society

摘　　要：为考察矿渣对水泥水化进程的影响,系统研究了在不同的养护龄期、水胶比、矿渣掺量条件下,水泥-矿渣复合浆体的矿渣反应程度、非蒸发水含量、Ca(OH)2含量、孔隙率和力学性能。根据实验结果,研究了复合浆体中矿渣反应程度和非蒸发水含量的变化规律,探讨了矿渣的掺入对Ca(OH)2含量的影响,提出了水化反应进程中水泥与矿渣对Ca(OH)2的供求模式,分析了矿渣与水泥的叠加与互补效应,确定了矿渣的最佳掺量范围和最大掺量范围。上述结果可为矿渣在水泥基材料中合理有效地利用提供一定的科学依据。For exploring the hydration process of Portland cement-slag composite system, the reaction degree of slag, amount of non-evaporable water, content of Ca（OH） 2, porosity and compressive strength of the pastes are studied at various curing ages, water to binder ratios, and slag content. Based on the experimental results, the evolution of the reaction degree of slag and amount of non-evaporation water of slag-Portland cement composite pastes are analyzed. The effect of slag on the amount of Ca（OH） 2 is also explored. An offering-demand model of Ca （OH）2 is also presented in the hydration process of cement- slag pastes according to the microcosmic characteristics and amount of hydration products. The interaction between slag and Portland cement is analyzed. The optimum mass ration of cement to slag is determined. The above findings may provide a guidance on reasonable utilization of slag in cement based materials in field engineering.

关 键 词：硅酸盐水泥 矿渣 反应程度 水化进程 

分 类 号：TU528[建筑科学—建筑技术科学]