考虑骨料形状时混凝土氯离子扩散系数预测的数值方法  

A numerical method for predicting the chloride diffusion coefficient of concrete with aggregate shape

作　　者：彭国军[1] 郑建军[1] 周颖琼[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：《水利水电科技进展》2009年第6期13-16,共4页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(50878196);浙江省自然科学基金(Y107638)

摘　　要：分析骨料形状对混凝土氯离子扩散系数的影响,提出考虑骨料形状时混凝土氯离子扩散系数预测的数值方法。结合计算机模拟技术和蒙特卡洛数值积分算法,获得了八边形骨料混凝土界面面积百分数,通过与2组实验结果比较,证实了该预测方法的有效性。The effect of aggregate shape on the chloride diffusion coefficient of concrete is analyzed. A numerical method for predicting the chloride diffusion coefficient of concrete with aggregate shape is presented. By combining the computer simulation technique with the Monte-Carlo numerical integration algorithm, the area fraction of interfacial transition zone in concrete with octagonal aggregate particles is obtained. By comparing with two sets of experimental results, the validity of the proposed numerical method is verified.

关 键 词：混凝土 骨料形状 氯离子扩散系数 界面面积百分数 有限元方法 

分 类 号：TU528.01[建筑科学—建筑技术科学]