Mechanical and Economic Analysis of Asphalt Pavement Structure on Mix Base

Abstract:

Based on asphalt pavement design theory and criterions in China, five asphalt structures are put out, including three mix base pavement structures, one typical semi-rigid base pavement structure and one typical flexible base pavement structure. For contract study, different pavement structures were selected with various combinations of modulus and Poisson ratio, but the total thickness is same for comparative analysis. The stress-strain at different depth in asphalt layer is calculated by using BISAR program. The data analysis is carried out for the maximum tensile stress, and the maximum strain of asphalt layer, and the maximum compressive strain on top of sub grade, deflection on asphalt surface. And budget basis price for base is contrasted too. The data analysis results show that the mix base asphalt pavement structures can be designed to get better pavement mechanical performance than typical semi-rigid base and typical flexible base asphalt pavement structures, while the price is higher than that of semi-rigid base. If we consider fatigue life, the cost performance for mix base of upper base with asphalt stabilized macadam is the best. This gives out the important reference for widespread the mix base in future.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 1626-1632
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.1626
• Online since: October 2012
• Authors: Hong Wei Peng, Bi Feng Ou
• Keywords: Asphalt Pavement, Mechanical Analysis, Mix Base, Road Engineering

References

[1] JTJ D50-2006, Specification of Asphalt Pavement Design [S]

[2] Li Feng, Chen Lishan. The Analysis about the Asphalt Pavement Structure Parameters Influence on Structure Characteristic[J]. Journal of China& Foreign Highway，2005,25(8):77-80

[3] Mo Jiezhen, Li Feng. Mechanical Analysis of Asphalt Concrete Pavement Structure Combination[J]. Highway Engineering, 2005(8):234-238

[4] Huang Kaiyu Zhong Mengwu. The Analysis about the Design of Asphalt Pavement Structure on Mix Base[J]. Highway Engineering, 2010,35(5):56-62

[5] Xie Xianggen, Wu Shanzhou, Huang Kaiyu. The Research about the Application of the Graded Broken Stone Base on Highway[J]. Journal of China& Foreign Highway, 2010,30(2):208-212

[6] Huang Kaiyu, Peng Hongwei, Xie Xianggen. The Research of Grading Macadam Mixture Composition Design Method [J]. Highway Engineering, 2009,34(3):53-72

[7] Huang Kaiyu. The Research of Asphalt Stabilized Macadam Base Structure Application Technology [J]. Highway Engineering, 2009,34(2):48-59