Rubber Powder-modified High Strength Concrete Before and After Fire Test
The characteristics of high strength concrete (HSC) modified with rubber powder was investigated by test method. The rubber powder which was produced from recycled waste tires has three types of granularity of 40 meshes (420 μm), 60 meshes (250 μm) and 80 meshes (178 μm) , respectively. A series of mechanical, destructive and nondestructive tests were accomplished in order to obtain the optimum quality and the best granularity of waste rubber powder in the composition, taking into account the compressive strength of the material before and after fire test. The research results showed that a relatively low addition of rubber powder (10.8 kg/m3) would not reduce significantly the compressive strength at normal temperature, while the low dosage of 40 meshes rubber powder reduced the risk of explosive spalling of HSC at high temperature, and the residual compressive strength of HSC modified with rubber powder was slightly improved after fire test.
high strength concrete rubber powder compressive strength fire test spalling
XIE Wei-feng LI Li-yuan CHEN Zhi-ze LIU Feng CHEN Ying-qin
Faculty of Construction Engineering,Guangdong University of Technology, Guangzhou 510006, China Guangdong Building Material Research Institute,Guangzhou 510160,China
国际会议
北京
英文
169-170
2006-08-03（万方平台首次上网日期，不代表论文的发表时间）