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活性粉末混凝土冲击压缩性能实验研究 被引量:17

EXPERIMENTAL STUDY ON THE IMPACT COMPRESSIVE BEHAVIOR OF REACTIVE POWDER CONCRETE
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摘要 通过对活性粉末混凝土材料进行Hopkinson压杆冲击压缩实验,得到不同钢纤维含量的活性粉末混凝土在不同应变率下的应力-应变全曲线,并给出了不同应变率下材料的动态压缩强度和动态增长因子,实验结果表明,活性粉末混凝土具有应变率敏感性,钢纤维的掺入部分提高了材料的冲击压缩性能。 Impact compressive experiments on reactive powder concrete (RPC) were carried out using split Hopkinson pressure technique. With different steel-fiber contents and different dynamic increase factors (DIF), stress-strain curves, dynamic compressive strength at different strain-rates were obtained. Results show that RPC is strain-rate-dependent, and the introducing of steel-fiber improves the dynamic compressive strength of the RPC partly.
出处 《工程力学》 EI CSCD 北大核心 2008年第11期167-172,204,共7页 Engineering Mechanics
基金 国家自然科学基金项目(50508005)
关键词 活性粉末混凝土 HOPKINSON压杆 波形整形 应变率 动态力学性能 动态增长因子 reactive powder concrete Hopkinson pressure bar wave shaping strain rate dynamic mechanical properties dynamic increase factors
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