页岩陶粒混凝土性能的研究  

Study on properties of shale ceramsite concrete

作　　者：郑秀华[1] 张宝生[1] 葛勇[1] 袁杰[1] 

机构地区：[1]哈尔滨工业大学材料学院,黑龙江哈尔滨150006

出　　处：《混凝土》2004年第12期32-33,44,共3页Concrete

基　　金：哈尔滨工业大学校优秀青年基金

摘　　要：　研究了页岩陶粒预湿程度对混凝土强度和抗冻性的影响。研究结果表明:随着页岩陶粒预湿程度的增加,混凝土早期强度降低幅度较后期强度大,而强度增长率明显增大.当页岩陶粒预湿程度低于饱和吸水率的91%时,对混凝土抗冻性几乎没有影响;当页岩陶粒预湿程度进一步增加时,可通过提高含气量来改善抗冻性。It researched the change of strength and frost-resistance of shale ceramsite concrete when shale ceramsite is pre-wetted by means of the distinct degree.According to the result,with pre-wetting degree increasing,early strength descent scope is greater than later strength,the strength growth rate obviously broadens.When pre-wetting degree is less 91% of saturated absorption of water,pre-wetting degree of shale ceramsite doesn't effect frost-resistance durability of concrete. When pre-wetting degree increases,frost-resistance durability of concrete can be improved by increasing air content.

关 键 词：页岩陶粒 预湿 页岩陶粒混凝土 强度 抗冻性 

分 类 号：TU528.2[建筑科学—建筑技术科学]