混凝土抗盐冻性能影响因素的研究  

Influencing factors of the deicer-salt resistance of the concrete

作　　者：巴恒静[1] 李中华[1] 关辉[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150006

出　　处：《混凝土》2008年第11期1-3,共3页Concrete

基　　金：国家自然科学基金资助项目(50408016);黑龙江省科技攻关资助项目(GC06A603)

摘　　要：参照CDF抗冻性能试验方法研究混凝土的抗折强度、水灰比、掺合料及引气剂对道路混凝土抗盐冻性能的影响。结果表明:混凝土56次盐冻剥蚀量和相对动弹性模量损失率随抗折强度的增加而减小,随水灰比降低而减小;掺合料及引气剂有利于降低混凝土的盐冻剥蚀量和动弹性模量损失率,提高混凝土的抗盐冻性能。According to the CDF methods, the effect of the bending strength, the water and cement ratio, the mineral admixture and air-entraining agent on the deicer-salt resistance of the concrete were researched.The results show that the scaling mass and the loss factor of the dynamic modulus of elasticity reduced with the increase of the bending strength and decrease of the water and cement ratio,it is very useful for debasing the scaling mass and the loss factor of the dynamic modulus of elasticity and improving the deicer-salt resistance to add the mineral admixture and air-entraining agent.

关 键 词：除冰盐 CDF方法 剥蚀量 超声波 抗盐冻性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]