砖内硫酸盐对混凝土结构破坏的机理剖析  

Analysis on the Mechanism of Sulphate in the Clay Brick Destroying Concrete Structure

作　　者：余红发[1] 李颖[1] 丁向群[1] 

机构地区：[1]沈阳建筑工程学院

出　　处：《混凝土》2000年第8期50-51,54,共3页Concrete

摘　　要：本文根据西宁市一例粘土砖内硫酸盐对现浇钢筋混凝土结构的化学腐蚀破坏事例 ,用XRD法分析了腐蚀产物 ,结果表明 :梁圈混凝土的腐蚀属硫铝酸钙 石膏 碳化型综合腐蚀 ,基础地板混凝土的腐蚀属硫铝酸钙型腐蚀。? This paper reported a case in xining that the sulphate in the clay brick destroyed the cast in place reinforced concrete by chemical corrosion By analysing the corrosion product with XRD,the result showed that the corrosion of girder concrete was due to the ettringite gypsum carbonization comprehensive corrosion and the corrosion of base plate concrete was due to the ettringite corrosion. 〔

关 键 词：混凝土 硫酸盐 粘土砖 结构 

分 类 号：TU375.02[建筑科学—结构工程]