高性能喷射混凝土的耐久性研究  

Endurance research on high-property sprayed concrete

作　　者：樊文熙[1] 张长海[2] 郑永保[1] 

机构地区：[1]焦作工学院新型建材研究所,河南焦作454000 [2]焦作矿务局,河南焦作454002

出　　处：《煤炭学报》2000年第4期366-368,共3页Journal of China Coal Society

基　　金：煤炭科学基金资助项目!( 97建 10 80 5 )

摘　　要：本项研究采用了高活性细掺料和水泥裹砂、水泥裹石工艺 ,喷射混凝土的耐久性大大提高 .抗渗标号达到 0 8MPa ,碳化系数为 0 88,腐蚀系数为 0 78,干缩率降低 16 6 % ,长期强度 (36 0d)达到 4 0 7MPa .对耐久性提高的原因进行了分析 .The researchers have used high activity small admixture, and adopted some special technology in which cement is wrapped up by sand and stones, so that endurance of sprayed concrete is increased greatly. Gauge number of leakage resistance reaches 0 8 MPa. The coefficient of carbonization is 0 88, while coefficient of erosion attains 0 78. Drying shrinkage decreases by 16 6%, however, long term strength (360 days) reaches 40 7 MPa. The reasons of increasing endurance are also analyzed.

关 键 词：喷射混凝土 抗渗性 抗碳化性 抗腐蚀性 耐久性 

分 类 号：TU528.53[建筑科学—建筑技术科学]