高性能混凝土的渗透性与耐久性之间的相关性研究  

Research on Relation Between Permeability and Durability of High Performance Concrete

作　　者：赵冰华[1] 赵宇[2] 李延波[3] 张士萍[1] 

机构地区：[1]南京工程学院建筑工程学院,南京211167 [2]江苏双龙集团有限公司,南京210034 [3]盐城工学院材料工程学院,盐城224051

出　　处：《硅酸盐通报》2013年第11期2311-2314,共4页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(51108231);江苏省自然科学基金(BK2011690);住房和城乡建设部科学技术项目(2013-K4-20)

摘　　要：混凝土的渗透性与其耐久性之间有着密切的联系。本文主要通过水分渗透性试验、碳化试验以及冻融循环试验,研究了混凝土的水分渗透性与其碳化性能以及抗冻性能之间的相关性。结果发现混凝土的水分渗透系数与碳化深度之间没有明显的相关性,但是,表层混凝土的吸水率与碳化深度存在较好的相关性。同时发现遭受100次冻融循环的混凝土,其相对动弹性模量与水分渗透系数之间存在较好的相关性。Permeability is closely related to the durability of concrete. This paper presents the relationship between permeability and durability factors including carbonation and frost resistance, through the water permeability testing, carbonation testing and freeze-thaw cycles testing. Results show that there is no relationship between permeability and carbonation depth, however, absorption of surface concrete is related with carbonation depth. For the concrete samples after 100 freeze-thaw cycles, there is also a clear correlation between water permeability coefficient and relative dynamic modulus of elasticity.

关 键 词：渗透性 碳化 抗冻性能 

分 类 号：TU528[建筑科学—建筑技术科学]