表面砂浆层改善混凝土抗氯离子渗透性能的试验研究  

Experiment study on the effects of surface mortar layer to the resistance of concrete to chloride ion penetration

作　　者：曾志[1] 邓德华[1] 原通鹏[1] 唐咸燕[1] 

机构地区：[1]中南大学土木建筑学院,410075

出　　处：《河南建材》2006年第2期34-37,共4页Henan Building Materials

摘　　要：采用RCM法测定混凝土试件的氯离子扩散系数,研究表面砂浆层对混凝土抗氯离子渗透性能的影响。结果表明,致密的表面砂浆层能显著地降低混凝土本体的氯离子扩散系数。对强度等级低,抗氯离子渗透要求高的混凝土工程,采用表面砂浆层是非常有效的方法。The effects of surface mortar layer on the resistance of concrete to chloride ion transport are studied in this paper, through obtaining the chloride ion diffusion coefficient of concrete specimens, by using RCM method. The experimental results show that surface mortar layer can significantly reduce the chloride ion diffusion coefficient of concrete. As far as the low strength concrete is concerned, surface treatment is a very effective method to improve its resistance to chloride ion penetration.

关 键 词：表面砂浆层 氯离子扩散系数 抗氯离子渗透能力 RCM法 混凝土 

分 类 号：TU528.33[建筑科学—建筑技术科学]