PERFORMANCE OF RUBBERIZED HIGH STRENGTH CONCRETE AFTER FIRE
The effects of recycled rubber powder on working abilities, density and compressive strength of high strength concrete (HSC) at room temperature were studied in this paper. The characteristics of rubberized high strength concrete (RHSC) after fire was investigated by surface observation, weight loss and retained strength testing. The sieve number of rubber powder used in test is No.40 (420μm), No.60 (250μm) and No.80 (178μm), and the content of rubber powder filled in RHSC is 1%, 2%, 3% and 4% with respect to cementation material respectively. Test results show that the increase in rubber powder content reduces the concrete strength, while the decrease in compressive strength of RHSC is less than 10% when the content of rubber powder is within 2%.RHSC with small content of rubber (1%) can restrain the spalling failure of concrete under high temperature.
High strength concrete Rubber powder Compressive strength Fire Spalling
Li-Juan Li Wei-Feng Xie Zhi-Ze Chen Ying-Qin Chen Hui-Xiang Lu Rui-Hua Wan
Guangdong University of Technology, Guangzhou 510006, P.R. China Guangdong Building Material Research Institute, Guangzhou 510160, P.R. China Changxing Concrete Company Limited, Guangzhou 510600, P.R. China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
1992-1996
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）