| S-P混杂纤维对混凝土长期性能与耐久性影响 |
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| 引用本文： | 王凯,陈梦成,杨洋.S-P混杂纤维对混凝土长期性能与耐久性影响[J].哈尔滨工业大学学报,2009(10):206-209. |
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| 作者姓名： | 王凯 陈梦成 杨洋 |
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| 作者单位： | 华东交通大学铁路环境振动与噪声教育部工程研究中心 |
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| 基金项目： | 国家重点基础研究发展计划资助项目(2009CB623203) |
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| 摘 要： | 采用对比的试验方法,研究并讨论了钢纤维、聚丙烯纤维及其混杂对混凝土长期性能及耐久性的影响.研究结果表明,用不同尺度、不同性质的钢纤维与聚丙烯纤维按二元混杂以总体积率0.9%掺入高性能混凝土中,明显改善了水泥混凝土的长期性能,90d干缩值减少36.6%,200d徐变度降低45.4%,并可显著提高混凝土的耐久性能,相对渗透系数降低79.03%,氯离子渗透系数降低30.5%.
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| 关 键 词： | 混杂纤维 高性能混凝土 长期性能 耐久性 |
Effect of S-P hybrid fibers on long-term behaviors and durability of high-performance concrete |
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| WANG Kai,CHEN Meng-cheng,YANG Yang.Effect of S-P hybrid fibers on long-term behaviors and durability of high-performance concrete[J].Journal of Harbin Institute of Technology,2009(10):206-209. |
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| Authors: | WANG Kai CHEN Meng-cheng YANG Yang |
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| Affiliation: | (Engineering Research Centre of Railway Environment Vibration and Noise of Ministry of Eolucation,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | Based on the method of contrast experiment,long-term behaviors and the durability of high-performance concrete with steel-polypropylene hybrid fibers(S-PHFRHPC) were investigated.Results show that the long-term behaviors and durability of concrete with the addition of 0.9%steel-polypropylene hybrid fibers can be improved markedly.The 90-day shrinkage,the 200-day creep gradient,the relative coefficient of permeability and the coefficient of chloride penetration can be decreased by 36.6%,45.4%,79.03%and 30.5%,respectively. |
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| Keywords: | hybrid fibers high-performance concrete long-term behaviors durability |
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