基于计算机模拟的水化程度预测方法  

Computer Simulation-Based Method for Predicting Degree of Hydration

作　　者：郑建军[1] 庞宪委[1] 熊芳芳[1] 

机构地区：[1]浙江工业大学建筑工程学院,浙江杭州310014

出　　处：《建筑材料学报》2008年第4期403-408,共6页Journal of Building Materials

基　　金：国家自然科学基金资助项目(50578147);浙江省自然科学基金资助项目(Y107638)

摘　　要：总结了水泥水化计算机模拟的基本原理,强调了水泥颗粒之间的干扰效应,基于计算机模拟所得的水泥石微观结构,提出了水泥水化程度预测方法.通过与文献中的2组实验数据比较,验证了该方法的有效性,并利用该方法讨论了水灰比和最大颗粒直径对水泥水化程度的影响,结果发现:水化7 d后,水灰比为0.6的水泥其水化程度比水灰比为0.4的水泥大14%,最大颗粒直径为10μm的水泥其水化程度比最大颗粒直径为20μm的水泥大12%.A computer simulation-based method is presented for predicting the degree of hydration. The basic principle of computer simulation for cement hydration is summarized, with emphasis on the interference effect between cement grains. Based on the simulated microstructure of cement paste, a method for predicting the degree of hydration is presented. The validity of the method proposed in this paper is verified with two sets of experimental data obtained from the literature, The effects of water-cement ratio and maximum cement diameter on the degree of hydration are discussed, It is found that for the hydration time of 7 days the degree of hydration at the water-cement ratio of 0, 6 is 14% larger than that at the water-cement ratio of 0, 4 and the degree of hydration at the maximum cement diameter of 10 μm is 12% larger than that at the maximum cement diameter of 20 μm.

关 键 词：水泥石 水化程度 计算机模拟 水灰比 最大水泥颗粒直径 

分 类 号：TQ172.1[化学工程—水泥工业]