| 聚丙烯纤维对高温下混凝土性能的影响 |
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| 引用本文： | 鞠丽艳,张雄. 聚丙烯纤维对高温下混凝土性能的影响[J]. 同济大学学报(自然科学版), 2003, 31(9): 1064-1067 |
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| 作者姓名： | 鞠丽艳 张雄 |
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| 作者单位： | 同济大学,混凝土材料研究国家重点实验室,上海,200092 |
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| 摘 要： | 聚丙烯纤维对高温下混凝土性能的影响研究结果表明,掺2.0～3.0kg·m~(-3)聚丙烯纤维的混凝土与不掺聚丙烯纤维的普通混凝土相比,抗压强度影响不大,抗折强度稍有提高,高温下动弹性模量损失率降低,混凝土的抗爆裂性能得到有效的改善,最后分析了聚丙烯纤维影响混凝土抗爆裂性能机理。
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| 关 键 词： | 聚丙烯纤维 高性能混凝土(HPC) 高强混凝土(HSC) |
| 文章编号： | 0253-374X(2003)09-1064-04 |
| 修稿时间： | 2002-10-09 |
Influence of Polypropylene Fibre on Performances of Concrete under High Temperature |
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| JU Li-yan,ZHANG Xiong. Influence of Polypropylene Fibre on Performances of Concrete under High Temperature[J]. Journal of Tongji University(Natural Science), 2003, 31(9): 1064-1067 |
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| Authors: | JU Li-yan ZHANG Xiong |
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| Abstract: | This paper mainly researches into the influence of polypropylene(PP) fibre on concrete performance under high temperature. Results show that compressive strength of concrete with PP fibre has little change compared to that of concrete without PP fibre. PP fibre can improve a little flexural strength of concrete. PP fibre can reduce loss ratio of concrete dynamic elastic modulus under high temperature. PP fibre has significant improvement on anti-bursting of concrete. The mechanism of PP fibre action on concrete anti-bursting performance is discussed in the end. |
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| Keywords: | polypropylene fibre high performance concrete high strength concrete |
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