摘要Compared with flat slope sections of asphalt pavement, the loading time of low-speed vehicle load to uphill sections with long and large longitudinal slope is much longer, under the comprehensive combination of heavy load and high temperature. Developing and forming speed of rutting on uphill sections with long and large longitudinal slope is faster. Rutting factor and dynamic modulus of asphalt and asphalt mixture under different loading time will be calculated and analyzed in this paper. The results show that rutting factor and dynamic modulus were substantially reduced. Using the new rutting test equipments with the changing wheel speed and load to simulate the influences of overload and temperature (loading time) on asphalt mixture, the results show that dynamic stability is rapidly declined with the decrease of wheel speed. The loading time has vital influence on the high temperature stability of asphalt mixture. Increasing load time is equivalent to raising the experimental temperature, and using the temperature conditions in specification to verify the high temperature stability of asphalt mixture for uphill sections with long and large longitudinal slope is unreasonable.
Abstract：Compared with flat slope sections of asphalt pavement, the loading time of low-speed vehicle load to uphill sections with long and large longitudinal slope is much longer, under the comprehensive combination of heavy load and high temperature. Developing and forming speed of rutting on uphill sections with long and large longitudinal slope is faster. Rutting factor and dynamic modulus of asphalt and asphalt mixture under different loading time will be calculated and analyzed in this paper. The results show that rutting factor and dynamic modulus were substantially reduced. Using the new rutting test equipments with the changing wheel speed and load to simulate the influences of overload and temperature (loading time) on asphalt mixture, the results show that dynamic stability is rapidly declined with the decrease of wheel speed. The loading time has vital influence on the high temperature stability of asphalt mixture. Increasing load time is equivalent to raising the experimental temperature, and using the temperature conditions in specification to verify the high temperature stability of asphalt mixture for uphill sections with long and large longitudinal slope is unreasonable.
基金资助:Supported by the Road and Transport R&D Project for Western Regions of China Commissioned by Ministry of Transport (No.201131821380)
通讯作者:
LI Jiang, 30196419@qq.com
E-mail: 30196419@qq.com
引用本文:
李江, 严二虎. 荷载作用时间对沥青混合料高温稳定性的影响[J]. Journal of Highway and Transportation Research and Development, 2014, 8(3): 7-12.
LI Jiang, YAN Er-hu. Influence of Loading Time on High-temperature Stability of Asphalt Mixtures. Journal of Highway and Transportation Research and Development, 2014, 8(3): 7-12.
[1] MENG Shu-Tao, LI Jiang. Study on the Anti-rutting Technology of Uphill Sections of Long and Large Longitudinal Slope of Asphalt Pavement in Zhejiang Mountainous Area[R]. Beijing:Research Institute of Highway, Ministry of Transport, 2007. (in Chinese)
[2] LI Fu-pu, YAN Er-hu. Study on Key Technology of Expressway Asphalt Pavement in High Temperature and Rainy Mountainous Area of Chongqing City[R]. Beijing:Research Institute of Highway Ministry of Transport, 2009. (in Chinese)
[3] JTG E20-2011, Standard Test Methods of Bitumen and Bituminous Mixtures for highway Engineering[S]. (in Chinese)
[4] LI Li-xin, DING Xue-feng, LI Yue-jun. Research on Mechanical Response of Asphalt Pavement with Moving Load on Long and Steep Longitudinal Slope[J]. Highway Engineering,2009, 34(6):38-46. (in Chinese)
[5] MA Xiang, NI Fu-jian, CHEN Rong-sheng. Dynamic Modulus Test of Asphalt Mixture and Prediction Model[J]. China Journal of Highway and Transport, 2008, 21(3):35-52. (in Chinese)
[6] PENG Li-hong, CUI Shi-ping, HUANG Liu-wu. Analysis of Asphalt Mixtures Dynamic Modulus Comparative Test[J]. Shandong Jiaotong Keji, 2012, (6):23-26. (in Chinese)
[7] LI Xue-lian, CHEN Yu-liang, ZHANG Qi-sen. Study on Performance for Upslope Asphalt Pavement Structure at High Temperature[J]. Journal of Highway and Transportation Research and Development, 2010, 27(8):1-6. (in Chinese)
[8] LI Ming-guo, NIU Xiao-xia, SHEN Ai-qin. Anti-rut Ability of Asphalt Pavement on Mountain Freeway[J]. Journal of Chang'an University:Natural Science Edition, 2006, 26(6):19-22. (in Chinese)
[9] WU Hao, PEI Jian-zhong, ZHANG Jiu-peng. Rutting Law and Its Influence Factors for Asphalt Pavement in Long and Steep Longitudinal Slope Section[J]. Journal of Chang'an University:Natural Science Edition, 2009, 29(6):28-31. (in Chinese)
[10] YANG Hai-rong, GUAN Hong-xin. Asphalt Pavements Rutting on Upgrade Section under High Temperature, Heavy Load and Slow Speed[J]. Journal of Changsha University of Science & Technology:Natural Science Edition, 2008, 5(4):13-17. (in Chinese)
[11] CHEN Yong. Study on Formation Mechanism and Control Methods for Rutting of Asphalt Pavement in Long and Steep Longitudinal Slope Sections[D]. Xi'an:Chang'an University, 2009. (in Chinese)
[12] WANG Jia-zhu. Design of Material Composition and Investigation into Performance of Asphalt Pavement on Longitudinal Slope[D]. Wuhan:Wuhan University of Technology, 2006. (in Chinese)
[13] LI Ming-guo, NIU Xiao-xia. Analysis on Influence of External Conditions on Rut Resistance of Asphalt Pavement[J]. Guangdong Highway Communications, 2006(4):15-19. (in Chinese)
[1]
李宁, 马骉, 李瑞, 司伟. 基于PUMA的单级和多级加载模式下级配碎石性能研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 1-12.
[2]
许海亮, 任合欢, 何兆才, 何炼. 车路耦合条件下沥青混凝土路面变形特性时域分析[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 13-19.
[3]
杜健欢, 艾长发, 黄超, 郭玉金, 蒋运兵. 界面水对沥青复合小梁疲劳性能的影响试验[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 1-7.
[4]
姚国强, 言志信, 龙哲, 翟聚云. 基于岩质边坡相似材料的锚固界面剪应力分布规律研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 8-15.
[5]
刘泽, 何矾, 黄天棋, 蒋梅东. 车辆荷载在挡土墙上引起的附加土压力研究[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 16-23.
[6]
邱欣, 徐静娴, 陶钰强, 杨青. 路面结冰条件判别标准及SVM预测分析研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 1-9.
[7]
高伟, 崔巍, 李秀凤. 半刚性基层表面抗冲刷性能试验与分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 10-17.
[8]
张向东, 任昆. 煤渣改良土路基的动弹性模量及临界动应力试验研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 25-32.
[9]
刘栋, 尚小亮, 杨西海. 垃圾焚烧炉渣中可溶盐对水泥稳定材料性能的影响[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 18-24.
[10]
李龙海, 杨茹. 多次加铺的复合道面疲劳寿命分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 7-15.
[11]
蔡旭, 李翔, 吴旷怀, 黄文柯. 基于旋转压实的水泥稳定再生集料设计方法研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 1-6.
[12]
李金路, 冯子强, 吴佳杰, 魏姗姗, 葛智. 环境及疲劳荷载作用下碳纳米管水泥基复合材料压敏性能研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 16-21.
[13]
田小革, 韩海峰, 李新伟, 吴栋, 魏东. 半刚性路面中双层半刚性基层的倒装效应[J]. Journal of Highway and Transportation Research and Development, 2018, 12(3): 22-27.
[14]
邢磊, 雷柏龄, 陈忠达, 戴学臻. 彩色沥青路面胶凝材料的制备技术[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 1-6.
[15]
方薇, 陈向阳, 杨果林. 带齿格栅加筋挡墙工作机理的数值模拟研究[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 7-13.
2014, Vol. 8 
