酸雨对桥梁用C50高强混凝土侵蚀性能影响分析  

Properties Analysis of Anti-corrosion of Acid Rain of Bridge C50 High Strength Concrete

作　　者：孙鑫鹏[1] 李益进[1] 尹健[1] 龚胜辉[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《混凝土与水泥制品》2010年第1期9-12,共4页China Concrete and Cement Products

摘　　要：采用周期浸泡和喷淋法,模拟广东地区酸雨环境,考虑矿物掺合料品种和掺量的影响,研究桥梁用C50高强混凝土在酸雨侵蚀条件下性能的变化规律。结果表明:从C50高强混凝土抗酸雨侵蚀能力来看,粉煤灰与矿渣双掺效果优于粉煤灰单掺和矿渣单掺,且粉煤灰与矿渣双掺掺量为25%时,为实验最佳掺量。The acid rain＇s condition in Guangdong is simulated, and considering the varieties and content of mineral admixtures, the performance changes of bridge C50 high strength concrete are studied under the corrosion of acid rain by periodical immersion and spraying method. The results show that, from the performance of anti-corrosion ability of C50 high strength concrete, the effect of double mixed mineral admixtures is better than single doped fly ash or slag, and the best experimental dosage is 25% by double mixed with fly ash and slag.

关 键 词：高强混凝土 抗酸雨侵蚀 矿物掺合料 性能变化 

分 类 号：TU528[建筑科学—建筑技术科学]