基于灰关联的混凝土耐久性分析

摘要

Macroscopic properties of concrete and its internal microstructure have a very close connection.The pore structure is an important part of cement concrete microstructure.Using mercury intrusion method to test concrete pore size distribution,we study the effect of pore size distribution on concrete strength and durability.Taking the strength,the electric flux,durability coefficient of concrete as the feature sequence,we analyze the causes that affect the concrete strength and durability by gray correlation degree in gray system theory.%混凝土的宏观性能与其内部细观或微观结构有着很密切的联系,而孔结构是水泥混凝土微观结构的重要构成部分.采用压汞法测试混凝土孔径分布,研究孔径分布对混凝土强度和耐久性的影响.通过灰色系统理论中灰色关联度,以混凝土强度、电通量、耐久性系数作为特征序列,分析影响混凝土强度、耐久性的原因.