聚丙烯纤维改性橡胶高强混凝土高温性能研究  

Research on high temperature property of polypropylene fiber modified high strength rubber concrete

作　　者：朱江[1] 李丽娟[1] 文周礼[1] 谢伟锋[1] 陈智泽[1] 陈应钦 

机构地区：[1]广东工业大学,广东广州510006 [2]广东省建筑材料研究院,广东广州510160

出　　处：《混凝土》2008年第3期51-54,共4页Concrete

基　　金：广东省教育厅自然科学重点项目(05Z009);广东省科技计划攻关项目(2005Z3-D0201)

摘　　要：对研配的试件进行了高温试验,利用外表面观察法和残余强度法对比研究了高强混凝土、橡胶粉高强混凝土及聚丙烯纤维改性橡胶粉高强混凝土高温作用后的性能变化。研究结果表明,聚丙烯纤维的加入有效地改善了高强混凝土和橡胶粉高强混凝土的高温抗爆裂性能,聚丙烯纤维与适量的橡胶粉混杂有利于提高橡胶粉高强混凝土的剩余抗压强度。The property change of high strength concrete ,high strength rubber concrete and polypropylene fiber modified high strength rubber concrete affected by high temperature were studied contrastly using the methods of external surface inspection and residual strength.The results show that polypropylene fiber has significant improvement on explosive spalling resistance performance of high strength concrete and high strength rubber concrete.The residual compressive strength of high strength rubber concrete is improved by the composites ofpolypropylene fiber and rubber powder.

关 键 词：聚丙烯纤维 橡胶粉 高强混凝土 高温 爆裂 

分 类 号：TU528.571[建筑科学—建筑技术科学]