混凝土的腐蚀性分析与研究  

ANALYSIS AND RESEARCH ON CORROSIVITY OF CONCRETE

作　　者：蒋欣[1] 李辉[1] 张林绪[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院

出　　处：《建筑技术》2004年第4期250-251,共2页Architecture Technology

摘　　要：高耸建筑、重点工程混凝土材料的腐蚀已经引起有关专家的高度重视。对某构筑物混凝土所用粗骨料、细骨料的腐蚀性进行岩相分析的结果表明,引起混凝土腐蚀的主要矿物是硫酸盐;腐蚀的产物主要是钙矾石;腐蚀的主要特征是在青石骨料边缘形成薄膜或环带;影响混凝土强度的方式是在混凝土中形成絮状集合体和树枝状细脉。The corrosion of concrete in skyscraper and many projects is paid more attention to by related experts. The lithofaceies of coarse and fine aggregates used in concrete of a certain architecture constructure are analysed. The results show that the main mineral causing the corrosion of concrete is sulphate, the main product of corrosion is ettringite, and the main charactor of corrosion is a film or zone formed at the edge of bluestone aggregates. The way to influence the concrete strength is floc and arborization formed in concrete.

关 键 词：混凝土 腐蚀 骨料 硫酸盐 钙矾石 

分 类 号：TU528[建筑科学—建筑技术科学]