| 聚丙烯纤维半刚性基层材料弯曲韧性试验研究 |
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| 引用本文： | 马银华,张广,易志坚,仲玉善,韩八晓.聚丙烯纤维半刚性基层材料弯曲韧性试验研究[J].重庆交通学院学报,2007,26(4):57-59,77. |
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| 作者姓名： | 马银华 张广 易志坚 仲玉善 韩八晓 |
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| 作者单位： | 重庆交通大学土木建筑学院 重庆400074(马银华，易志坚)，内蒙古省际通道建设管理办公室 内蒙古呼和浩特010020(张广，仲玉善，韩八晓) |
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| 基金项目： | 内蒙古交通科技项目（NJ-2005-23）资助 |
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| 摘 要： | 通过4点弯曲试验,得到了低掺量聚丙烯纤维半刚性基层与不掺纤维的普通基层材料的荷载-挠度曲线,并据此分析了各类基层材料的弯曲强度、变形性能;按照日本砼协会(JCI)标准方法和美国材料与试验协会(ASTMC1018—97)标准方法,分别计算得到了聚丙烯纤维半刚性基层材料与普通基层材料的韧性指数.韧性评价结果表明,低掺量聚丙烯纤维半刚性基层材料具有较强的持荷变形能力,其韧性和抗裂性能显著高于普通基层材料.
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| 关 键 词： | 聚丙烯纤维 半刚性基层 水泥稳定砂砾基层 水泥稳定碎石基层 韧性指数 抗裂性能 |
| 文章编号： | 1001-716X（2007）04-0057-03 |
| 收稿时间： | 2006-06-01 |
| 修稿时间： | 2006-06-23 |
Experimental Research on Flexural Toughness of Semi-rigid Base Mixed into Polypropylene Fiber |
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| MA Yin-hua, ZHANG Guang , YI Zhi-jian , ZHONG Yu-shan , HAN Ba-xiao.Experimental Research on Flexural Toughness of Semi-rigid Base Mixed into Polypropylene Fiber[J].Journal of Chongqing Jiaotong University,2007,26(4):57-59,77. |
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| Authors: | MA Yin-hua ZHANG Guang YI Zhi-jian ZHONG Yu-shan HAN Ba-xiao |
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| Abstract: | By the four-point flexural test,the load-deflection curves of semi-rigid base mixed into low polypropylene fiber and plain base were got,and the flexural intensity and deformation performance in virtue of them were analyzed.According to the standard measures of JCI and ASTM C1018-97,the toughness index was calculated separately.Toughness valuation shows that the semi-rigid base mixed into low polypropylene fiber is characterized by sustained load deformation performance and distinct advantage over plain base in toughness and anti-crack performance. |
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| Keywords: | polypropylene fiber semi-rigid base cement stabilized gravel base cement stabilized macadam base toughness index anti-crack performance |
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