橡胶粉-纤维改性高强混凝土的高温性能  

High Temperature Performance of High Strength Concrete Modified by Rubber Powder and Fiber

作　　者：刘锋[1] 张文杰[1] 何东明[1] 李丽娟[1] 

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006

出　　处：《建筑材料学报》2011年第1期124-131,共8页Journal of Building Materials

基　　金：国家自然科学基金资助项目(10872052);广东省自然科学基金重点资助项目(07117419);广东省科技计划项目(2009B011200003;2009B011000020)

摘　　要：将橡胶粉、聚丙烯纤维和钢纤维按不同组合方式掺入高强混凝土中对其改性,并进行常温和高温下的轴心抗压试验,以分析不同材料混杂改性对高强混凝土强度及变形性能的影响,研究改性高强混凝土的高温抗爆裂性能.结果表明:混杂材料能有效改善高强混凝土的抗爆裂性能及高温力学性能,比单组分材料改性效果优良.Rubber,polypropylene fiber and steel fiber were used by different combinations to reinforce the high strength concrete.The compressive strengths of reinforced concrete at room temperature and high temperature were tested.The effects of different combinations of three kinds of material on compressive strength and ductility of reinforced concrete at room temperature and high temperature were investigated. Test results show that the spalling resistance of high strength concrete is greatly improved by addition of hybrid material.

关 键 词：高强混凝土 橡胶粉 钢纤维 聚丙烯纤维 轴心抗压强度 高温 

分 类 号：TU528.41[建筑科学—建筑技术科学]