| 中面层沥青混合料抗车辙性能研究 |
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| 引用本文： | 杨军,于良溟,万军,陈军,钱国超.中面层沥青混合料抗车辙性能研究[J].东南大学学报,2006,22(2):270-272. |
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| 作者姓名： | 杨军 于良溟 万军 陈军 钱国超 |
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| 作者单位： | 东南大学交通学院 南京210096(杨军，于良溟，万军，陈军)，江苏省高速公路建设指挥部 南京210004(钱国超) |
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| 摘 要： | 从提高中面层沥青混合料抗车辙性能以减少沥青路面车辙出发,探讨了在各自最佳油石比条件下,不同级配结构对中面层抗车辙性能的影响.通过中面层空气浴改进车辙试验及汉堡浸水车辙试验,对中面层沥青混合料的抗车辙性能进行了研究,并与德国的相关研究成果进行了比较与分析.结果表明Sup20和AC-20I改进型抗车辙性能优于AC-20I型;硬质石料、优质沥青有助于提高浸水条件下沥青混合料抗车辙性能.因此,选用合适的改性沥青、硬质石料和合理级配有助于提高中面层沥青混合料抗车辙性能.
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| 关 键 词： | 中面层 车辙 改性沥青 改进型车辙试验 汉堡车辙试验 |
| 收稿时间： | 01 12 2006 12:00AM |
Rutting resistance of asphalt mixtures in the middle course |
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| Yang Jun,Yu Liangming,Wan Jun,Chen Jun,Qian Guochao.Rutting resistance of asphalt mixtures in the middle course[J].Journal of Southeast University(English Edition),2006,22(2):270-272. |
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| Authors: | Yang Jun Yu Liangming Wan Jun Chen Jun Qian Guochao |
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| Institution: | 1 College of Transportation, Southeast University, Nanjing 210096, China;2 Jiangsu Province Freeway Construction Headquarters, Nanjing 210004, China |
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| Abstract: | In order to improve the rutting resistance of asphalt mixtures in the middle course to reduce the rutting of asphalt pavement,the influence of different types of gradation with their own optimal asphalt-aggregate ratios is analyzed. Some investigations are made out on the mixture in the middle course through the modified wheel tracking test in air bath and the Hamburg wheel tracking test (HWTT) in water bath,and the results of which are compared with the corresponding research in Germany.Results show that the Sup20 and the modified AC-20I have better performance than that of AC-20I under the same test conditions.In addition,the high-quality bitumen and hard aggregate can improve the rutting performance of the mixture in water-submerged conditions.The selection of modified asphalt,hard aggregate and a reasonable gradation are essential to the improvement of the rutting resistance of the mixtures used in the middle course. |
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| Keywords: | middle course rutting modified asphalt modified wheel tracking test Hamburg wheel tracking test |
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