复合超细粉混凝土护筋性能实验  

Experimental on protective properties of concrete with ultra-fine powder against steel bar rusting

作　　者：朱方之[1] 吕恒林[2] 

机构地区：[1]江苏省宿迁学院建筑工程系,江苏宿迁223800 [2]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《黑龙江科技学院学报》2008年第1期70-72,共3页Journal of Heilongjiang Institute of Science and Technology

摘　　要：结合某近海地区桥梁工程实例,采用人工加速锈蚀实验方法,对复合超细粉混凝土护筋性能进行研究。结果表明复合超细粉混凝土含筋试件锈蚀电流、最大裂缝宽度均低于普通混凝土试件,具有密实性高、护筋性能强特点,是解决近海地区钢筋盐腐蚀经济有效的措施之一。Depending on an example of a bridge project in coastal areas, the paper introduces the study on the protective properties of HPC with ultra-fine powder composite against steel rusting by the accelerated corrosion methods. The test results show that both corrosion current and maximum crack width of ultra-fine powder composite concrete specimens are lower than those of ordinary concrete specimens it shows a greater density, a stronger protective properties than ordinary concrete specimens. It is one of the economical and effective solutions to salt corrosion negatively affecting the coastal areas reinforced concrete.

关 键 词：复合超细粉 钢筋锈蚀 混凝土 

分 类 号：TU375[建筑科学—结构工程]