| 内掺型除冰剂沥青混合料性能的试验研究 |
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| 引用本文： | 邹海味,纪小平,李向航,司柏通.内掺型除冰剂沥青混合料性能的试验研究[J].路基工程,2018,0(5):74-79. |
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| 作者姓名： | 邹海味 纪小平 李向航 司柏通 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室, 西安 710064 |
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| 基金项目： | 陕西省自然科学基金项目（2017JM5034&2017JQ5030）；中央高校基本科研业务费专项资金（310821172008&310821171018） |
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| 摘 要： | 主要研究内掺型除冰剂对3种沥青混合料抗冻结冰性能的影响。通过冰点试验、轮碾试验、黏结力试验，基于除冰效果最优原则确定除冰剂的最佳掺量；按最佳掺量设计内掺型除冰沥青混合料，并进行车辙试验、水稳定性试验与低温弯曲试验，研究内掺型除冰沥青混合料的路用性能。结果表明:综合3种沥青混合料的除冰效果，内掺型除冰剂的最佳掺量为5%，此时除冰效果最优，冰点可降低至-20℃左右，实际交通量大于23次/分钟的路面覆冰时间减短，冰层与路面间黏结力分别降低61.63%，62.64%，74.39%；与普通沥青混合料相比，内掺型除冰
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| 关 键 词： | 沥青混合料 内掺型除冰剂 除冰效果 路用性能 |
| 收稿时间： | 2019-11-11 |
Study on the Influence of Incorporated Deicer on the Performance of Asphalt Mixture |
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| Abstract: | Tests were conducted to reveal the influence of the incorporated deicer on the anti-freezing performance of the three asphalt mixtures. The best dosage and effect of resistance to freeze for incorporated deicer were determined by the freezing test, wheel-rolling test and adhesion force test. With the best dosage of incorporated deicer, the influence of pavement performance for asphalt mixture was verified according to the wheel tracking test, water stability test and low temperature and bending test. The results show that the optimum dosage of incorporated deicer is 5% with the optimum deicing effect and the freezing point of asphalt mixture decreases to -20℃ approximately. The time of covering ice for the pavement with actual volume of traffic more than 23 times/minute is shortened. The adhesion force between the ice and the pavement decreases by 61.63%,62.64% and 74.39% respectively. Compared with the common asphalt mixture, the residual stability, freeze-thaw split intensity ratio and low temperature and bending strain of the incorporated deicing asphalt mixture are changed slightly, meeting the requirements of specification. |
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