裂缝及表面防水处理对混凝土中钢筋锈蚀的影响  

Influence of cracks and surface waterproofing treatment on corrosion of steel in concrete

作　　者：任昭君[1] 孙志伟[2] 苏卿[3] 

机构地区：[1]滨州职业学院,山东滨州256600 [2]滨州市财政局,山东滨州256600 [3]西安建筑科技大学,陕西西安710055

出　　处：《新型建筑材料》2010年第6期81-84,共4页New Building Materials

基　　金：国家"十一五"科技支撑计划项目(2006BAJ02B04)

摘　　要：混凝土结构存在着大量的裂缝,这些裂缝成为侵蚀性离子如氯离子进入混凝土的便捷通道,而氯离子又是诱发混凝土中钢筋锈蚀的主要因素之一。采用硅烷防水剂对混凝土表面进行处理,在混凝土表层建立氯离子隔离层,有效抵抗氯离子的侵蚀,进而在一定程度上减缓钢筋锈蚀的速率。并研究了混凝土裂缝与表面防水处理的先后顺序对钢筋锈蚀的影响。Large numbers of cracks consist in concrete structures,which make erosive ions like Cl- come into concrete easily. Chloride ion is one of the main factors which induce the steel corrosion in concrete. On concrete surface waterproofing treatment can make a seclusion layer which resist the erosive ions like Cl- effectively, further can reduce the rate of steel corrosion to a certain extent. The influence of sequencing of cracks and surface waterproof treatment on corrosion of steel in concrete is also studied in this paper.

关 键 词：混凝土裂缝 硅烷防水剂 表面防水处理 钢筋锈蚀 

分 类 号：TU572[建筑科学—建筑技术科学]