|
|
|
| Influence of Loading Time on High-temperature Stability of Asphalt Mixtures |
| LI Jiang1,2, YAN Er-hu2 |
1. School of Highway, Chang'an University, Xi'an Shaanxi 710064, China;
2. Research Institute of Highway, Ministry of Transport, Beijing 100088, China |
|
|
|
|
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.
|
|
Received: 18 January 2014
|
| Fund:Supported by the Road and Transport R&D Project for Western Regions of China Commissioned by Ministry of Transport (No.201131821380) |
|
Corresponding Authors:
LI Jiang, 30196419@qq.com
E-mail: 30196419@qq.com
|
|
|
|
[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] |
LI Ning, MA Biao, LI Rui, SI Wei. Performance of Unbound Aggregate Materials under Single-stage and Multi-stage Loading Modes Based on Precision Unbounded Material Analyzer[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 1-12. |
| [2] |
XU Hai-liang, REN He-huan, HE Zhao-cai, HE Lian. Time-domain Analysis of Deformation Characteristics of Asphalt Concrete Pavement Considering Vehicle-pavement Coupled Effect[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 13-19. |
| [3] |
DU Jian-huan, AI Chang-fa, HUANG Chao, GUO Yu-jin, JIANG Yun-bing. Effect of Interfacial Water on the Fatigue Performance of Composite Asphalt Mixture Beams[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 1-7. |
| [4] |
YAO Guo-qiang, YAN Zhi-xin, LONG Zhe, ZHAI Ju-yun. Simulation Experimental Study on Shear Stress Distribution of Rock Slope Anchoring Interface[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 8-15. |
| [5] |
LIU Ze, HE Fan, HUANG Tian-qi, JIANG Mei-dong. Additional Earth Pressure of Retaining Wall Caused by Vehicle Load[J]. Journal of Highway and Transportation Research and Development, 2019, 13(1): 16-23. |
| [6] |
QIU Xin, XU Jing-xian, TAO Jue-qiang, YANG Qing. Asphalt Pavement Icing Condition Criterion and SVM-based Prediction Analysis[J]. Journal of Highway and Transportation Research and Development, 2018, 12(4): 1-9. |
|
|
|
|
2014, Vol. 8 
