| 纤维和引气剂对现代水泥基材料抗渗性的影响 |
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| 引用本文： | 杜志芹,孙伟.纤维和引气剂对现代水泥基材料抗渗性的影响[J].东南大学学报(自然科学版),2010,40(3). |
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| 作者姓名： | 杜志芹 孙伟 |
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| 作者单位： | 1. 东南大学材料科学与工程学院,南京,211189
2. 东南大学江苏省土木工程材料重点实验室,南京,211189 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目 |
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| 摘 要： | 研究了聚乙烯醇纤维(PVAF)、聚丙烯纤维(PPF)、玄武岩纤维(BF)和不同掺量引气剂对现代水泥基材料抗渗性的影响.通过抗渗试验和压汞试验(MIP)对水泥基材料的抗渗性和孔结构进行测试,分析了纤维和不同掺量引气剂掺入后水泥基材料孔结构的改变,孔结构的改变影响了水泥基材料的抗渗性.实验结果表明:掺入PVAF可以提高水泥基材料的抗渗性,而PPF和BF对水泥基材料的抗渗能力有负面效应;掺入适量引气剂后因孔结构的改善也会显著提高水泥基复合材料的抗渗能力.
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| 关 键 词： | 抗渗性 聚乙烯醇纤维 聚丙烯纤维 玄武岩纤维 引气剂 |
Effect of fibers and air-entraining agent on the impermeability of modern cement-based materials |
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| Du Zhiqin,Sun Wei.Effect of fibers and air-entraining agent on the impermeability of modern cement-based materials[J].Journal of Southeast University(Natural Science Edition),2010,40(3). |
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| Authors: | Du Zhiqin Sun Wei |
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| Institution: | Du Zhiqin Sun Wei(School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)(Jiangsu Key Laboratory of Construction Materials,China) |
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| Abstract: | The effects of polyvinyl alcohol fibers(PVAF),polypropylene fibers(PPF),basalt fibers(BF) and air-entraining agents on the impermeability of modern cement-based materials are studied.Impermeability test and mercury intrusion porosimetry(MIP) methods were used to characterize the impermeability and pore structures.The changes of pore structures of cement-based materials due to the addition of fibers and air-entraining agent are analyzed.The changes of pore structure changed the impermeability of cement-based... |
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| Keywords: | impermeability PVAF(polyvinyl alcohol fibers) PPF(polypropylene fibers) BF(basalt fibers) air-entraining agent |
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