| 玄武岩/聚丙烯纤维水泥砂浆的力学性能与抗裂性 |
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| 引用本文： | 康秋波,方永浩,邓红芬.玄武岩/聚丙烯纤维水泥砂浆的力学性能与抗裂性[J].材料导报,2011,25(12). |
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| 作者姓名： | 康秋波 方永浩 邓红芬 |
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| 作者单位： | 河海大学力学与材料学院,南京,210098 |
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| 基金项目： | 国家科技支撑计划课题，江苏省自然科学基金，中央高校基本科研业务费资助 |
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| 摘 要： | 研究了玄武岩纤维、聚丙烯纤维单独和混杂掺加对水泥砂浆工作性、力学性能和抗裂性的影响.结果表明,在掺率为0.075%～0.20%(体积分数)的范围内,单独掺加玄武岩纤维和聚丙烯纤维均可以不同程度地提高水泥砂浆的抗折强度和早期抗压强度,而对28d抗压强度均有不利影响;在体积掺率相同的情况下,掺加玄武岩纤维的砂浆比掺加聚丙烯纤维的砂浆具有更好的力学性能;玄武岩纤维与聚丙烯纤维以适当比例混杂掺加时,可以得到较掺加单一种类纤维更好的效果;混杂纤维可以有效地改善水泥砂浆的韧性,提高水泥砂浆的抗裂性能.
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| 关 键 词： | 玄武岩纤维 聚丙烯纤维 混杂纤维 力学性能 增韧 阻裂 |
Mechanical Properties and Crack-Resistance of Cement Mortar with Basalt/Polypropylene Hybrid Fiber |
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| KANG Qiubo,FANG Yonghao,DENG Hongfen.Mechanical Properties and Crack-Resistance of Cement Mortar with Basalt/Polypropylene Hybrid Fiber[J].Materials Review,2011,25(12). |
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| Authors: | KANG Qiubo FANG Yonghao DENG Hongfen |
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| Affiliation: | KANG Qiubo,FANG Yonghao,DENG Hongfen(College of Mechanics and Materials,Hehai University,Nanjing 210098) |
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| Abstract: | The effect of basalt fiber and polypropylene fiber and their combinations on the workability,mecha-nical properties and crack resistance were investigated.The results show that adding 0.075%~0.20%(volume) polypropylene or basalt fibers in cement mortar will increase the early and late flexural strengths,and the early compressive strength,while the 28d compressive strength will be decreased to some extent.Basalt fiber has better effect on the mechanical properties of mortar than polypropylene fiber.Basalt/po... |
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| Keywords: | basalt fiber polypropylene fiber hybrid fiber mechanical properties toughening crack-resis-tance |
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