大掺量Ⅲ级粉煤灰混凝土耐久性研究  

Durability of Concrete Incorporating Large Volume of Class Ⅲ Fly Ash

作　　者：蒋林华[1] 刘振清[1] 叶义群[1] 

机构地区：[1]河海大学材料科学与工程系,江苏南京210098

出　　处：《建筑材料学报》2004年第3期328-331,共4页Journal of Building Materials

基　　金：教育部留学回国人员科研基金资助项目

摘　　要：研究了大掺量Ⅲ级粉煤灰混凝土的碳化、抗钢筋锈蚀和抗侵蚀性能以及试验采用的CO2浓度对评价大掺量低质粉煤灰混凝土抗碳化性能的影响.结果表明,掺激发剂的大掺量Ⅲ级粉煤灰混凝土具有良好的抗碳化和抗钢筋锈蚀性能,大掺量Ⅲ级粉煤灰混凝土的抗侵蚀性能优于普通对比混凝土,碳化试验采用的CO2浓度对评价大掺量Ⅲ级粉煤灰混凝土抗碳化性能具有较大影响.Carbonation, corrosion of steel reinforcement in concrete and corrosion resistance of concrete incorporating large volume of class Ⅲ fly ash were studied. The effect of concentration of carbon dioxide used in the experiment on estimating the carbonation resistance of concrete incorporating large volume of class Ⅲ fly ash were also investigated. Test results show that the concrete incorporating large volume of class Ⅲ fly ash with activator has good carbonation resistance and corrosion resistance of steel reinforcement. The corrosion resistance of concrete incorporating large volume of class Ⅲ fly ash is better than that of control concrete. The concentration of carbon dioxide used in the experiment has considerable effect on estimating the carbonation resistance of concrete incorporating large volume of class Ⅲ fly ash.

关 键 词：大掺量 粉煤灰混凝土 抗碳化性 钢筋锈蚀 低质粉煤灰 耐久性 激发剂 抗侵蚀性 性能 研究 

分 类 号：TU528[建筑科学—建筑技术科学] TQ177[化学工程—硅酸盐工业]