摘要
对上海地区五座被腐蚀的桥梁混凝土的现场取样测试结果显示,原设计强度为C30混凝土强度和耐久性均严重降低。近年来上海建成了大量桥梁、高架和轨道交通工程,钢筋混凝土防腐技术措施研究无疑将成为一个紧迫的课题。主要对策是针对不同环境条件的耐久性下降原因,进行混凝土耐久性设计。
The tests of the sampled corrosive concrete from 5 bridges in Shanghai district show that the strength and durability of the originally designed bridge concrete C30 have severely decreased. In the recent years, lots of bridges, viaducts and light rail transits have been built in Shanghai, the study of the technical measures against the reinforced concrete corrosion will undoubtedly become an imperative issue. The principal improvements are to design the durability of the concrete in the light of the specific reasons that cause the decreasing of the durability in different environments.
出处
《桥梁建设》
EI
CSCD
北大核心
2003年第6期18-21,共4页
Bridge Construction
关键词
混凝土
碳化
保护层
耐久性
concrete
carbonization
concrete cover
durability
