硫酸盐侵蚀下矿用补偿收缩钢纤维混凝土压拉性能试验研究  

Experiment Study on Compressive and Tensile Performances of Mine Shrinkage-Compensation Steel Fiber Concrete Under Sulphate Erosion

作　　者：方张平[1] 马芹永[1] 

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001

出　　处：《煤炭工程》2011年第12期109-111,共3页Coal Engineering

基　　金：高校博士学科点专项基金(20093415110001);安徽省高校省级自然科学研究项目(KJ2010A103)

摘　　要：文章对矿用补偿收缩钢纤维混凝土在不同侵蚀龄期下的抗硫酸盐侵蚀压拉性能进行研究。结果表明,在膨胀剂掺量为8%、钢纤维体积率为1.2%时其效果最佳。在硫酸盐溶液中侵蚀100d,其抗压强度和抗拉强度相对未侵蚀的基准混凝土分别提高了36.2%、4.52%;侵蚀200d的抗压强度和抗拉强度相对侵蚀100d分别下降了2.16%、2.08%。The paper had a study on the compressive and tensile performances of the mine shrinkage compensation steel fiber concrete under the sulphate erosion resistance with the different erosion period.The results showed that when the mixing ratio of the swelling agent was 8% and the steel fiber volume rate was 1.2%,the steel fiber concrete would have the best effect.With the 100 days erosion in the sulphate solution,the compressive strength and the tensile strength of the mine shrinkage compensation steel fiber concrete could be improved by 36.2% and 4.52% than the non erosion basic concrete individually.With the 200 days erosion in the sulphate solution,the compressive strength and tensile strength would be reduced by 2.16% and 2.08% lower than the 100 days erosion concrete individually.

关 键 词：硫酸盐侵蚀 矿用补偿收缩钢纤维混凝土 抗压强度 抗拉强度 

分 类 号：TU528[建筑科学—建筑技术科学]