水泥基材料水分传输及动力学研究  

Research on Water Transport and Kinetics in Cement-based Materials

作　　者：沈春华[1] 水中和[1] 周紫晨[1] 

机构地区：[1]武汉理工大学硅酸盐材料工程教育部重点实验室,武汉430070

出　　处：《武汉理工大学学报》2007年第9期84-87,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金(50472042);教育部博士点基金(20050497010)

摘　　要：从水泥基材料耐久性出发,引出了水分传输的重要性,研究了水泥砂浆和混凝土的一维水分传输。结果表明:只有结合毛细吸收和扩散2种传输过程才能很好地表征水泥基材料内部的水分传输过程,材料内部孔隙结构对水分传输的动力学过程有很大的影响。该研究结果为水泥基材料耐久性评价和寿命设计提供了更精确的理论基础。The importance of water transport was deduced from the durability problem of cement-based materials, and the unidirectional water transport in cement mortar and concrete were investigated in this paper. The results showed that the combination of both capillary absorption and moisture diffusion fitted the experimental data very well, pore structures of cementbased materials had great effect on the kinetics of water transport in the materials. This research gives the more accurate results for the durability evaluation and life design.

关 键 词：水泥基材料 耐久性 毛细吸收 扩散 孔隙结构 

分 类 号：TU356[建筑科学—结构工程]