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| EXPERIMENTAL RESEARCH ON ANTI-PENETRATION AND ANTI-EXPLOSION PROPERTIES OF GREEN ULTRA-HIGH PERFORMANCE FIBER REINFORCED CEMENT-BASED PROTECTIVE MATERIALS |
| SHE Wei1，ZHANG Yunsheng1，SUN Wei1，FANG Qin2，RONG Zhidan1，ZHANG Wenhua1，LIU Jianzhong3 |
| (1. Jiangsu Key laboratory for Civil Engineering Materials，Southeast University，Nanjing，Jiangsu 211189，China；2. Engineering Institute of Engineering Corps，PLA University of Science and Technology，Nanjing，Jiangsu 210007，China；3. Jiangsu Research Institute of Building Science Co.，Ltd.，Nanjing，Jiangsu 210008，China) |
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Abstract A series of ultra-high performance engineering protective materials with compressive strength higher than 100 MPa is prepared by utilizing composite mineral admixtures(20%–50% mass replacing portland cement)，polycarboxylic type high performance water reducer(water reducing ratio 40%)，short and fine steel fibers on normal shaping and curing condition. Based on the empirical formula，the properties of anti-penetration and anti-explosion of target specimens with different compressive strength(C100，C150，C200) are investigated. The experimental results show that the green ultra-high performance concrete(GUHPC) has excellent performance in anti-penetration and anti-explosion，especially in the C200 target specimens. The corresponding energy dissipation per meter，coefficient of penetration and coefficient of explosion cavity radius are 516 kJ/m，0.389 mm2•s/kg and 0.051 m/kg1/3，respectively. Its ability of anti-explosion is equivalent with reactive powder concrete(RPC)，in addition，the performance of anti-secondary explosion and spalling resistance is excellent.
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Received: 31 December 2009
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2011, Vol. 30 
