Experimental Research on Interlayer Strain Transfer of Semi-Rigid Asphalt Pavement and Influencing Factors
单伶燕1,2, 鞠志成3, 孟壮3, 周兴业2, 王建凯4
1. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China;
3. China Road & Bridge Corporation, Beijing 100011, China;
4. Research Institute of Highway Ministry of Transport, Beijing 100088, China
Experimental Research on Interlayer Strain Transfer of Semi-Rigid Asphalt Pavement and Influencing Factors
SHAN Ling-yan1,2, JU Zhi-cheng3, MENG Zhuang3, ZHOU Xing-ye2, WANG Jian-kai4
1. School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Fundamental Research Innovation Center, Research Institute of Highway Ministry of Transport, Beijing 100088, China;
3. China Road & Bridge Corporation, Beijing 100011, China;
4. Research Institute of Highway Ministry of Transport, Beijing 100088, China
摘要Interlayer strain transferring effect of homogeneous or heterogeneous materials is obtained by small-scale interlayer bonding test model to quantitatively evaluate the interlayer bonding of semi-rigid asphalt pavement. The influencing factors are also analyzed. Results show that interlayer strain transferring effect between homogeneous materials is strong. The interlayer contacting is continuous, while the interlayer contacting between heterogeneous materials is discontinuous. Interlayer contacting can be assumed continuous in the structure calculation of homogeneous materials, while Goodman model is recommended for heterogeneous materials. Temperature and load level significantly influence strain transfer between layers. Specifically, with the increase in temperature, interlayer strain value and strain differences of homogeneous or heterogeneous materials become large, and interlayer strain transferring effect becomes poor. As the load level increases, strain transferring effect between homogeneous materials is gradually weakened and not conducive to the combination of interlayer. Meanwhile, strain transferring effects between heterogeneous materials are improved, and cooperation deformation of upper and lower materials occurs easily under compressive stress. Interlayer contacting can be assumed continuous between asphalt or semi-rigid material layers in the structure calculation to ensure that the theoretical model corresponds to the practical situation, while the assumption is semi-continuous or semi-sliding between asphalt and semi-rigid material layers.
Abstract：Interlayer strain transferring effect of homogeneous or heterogeneous materials is obtained by small-scale interlayer bonding test model to quantitatively evaluate the interlayer bonding of semi-rigid asphalt pavement. The influencing factors are also analyzed. Results show that interlayer strain transferring effect between homogeneous materials is strong. The interlayer contacting is continuous, while the interlayer contacting between heterogeneous materials is discontinuous. Interlayer contacting can be assumed continuous in the structure calculation of homogeneous materials, while Goodman model is recommended for heterogeneous materials. Temperature and load level significantly influence strain transfer between layers. Specifically, with the increase in temperature, interlayer strain value and strain differences of homogeneous or heterogeneous materials become large, and interlayer strain transferring effect becomes poor. As the load level increases, strain transferring effect between homogeneous materials is gradually weakened and not conducive to the combination of interlayer. Meanwhile, strain transferring effects between heterogeneous materials are improved, and cooperation deformation of upper and lower materials occurs easily under compressive stress. Interlayer contacting can be assumed continuous between asphalt or semi-rigid material layers in the structure calculation to ensure that the theoretical model corresponds to the practical situation, while the assumption is semi-continuous or semi-sliding between asphalt and semi-rigid material layers.
单伶燕, 鞠志成, 孟壮, 周兴业, 王建凯. Experimental Research on Interlayer Strain Transfer of Semi-Rigid Asphalt Pavement and Influencing Factors[J]. Journal of Highway and Transportation Research and Development, 2020, 14(1): 18-24.
SHAN Ling-yan, JU Zhi-cheng, MENG Zhuang, ZHOU Xing-ye, WANG Jian-kai. Experimental Research on Interlayer Strain Transfer of Semi-Rigid Asphalt Pavement and Influencing Factors. Journal of Highway and Transportation Research and Development, 2020, 14(1): 18-24.
[1] SHA A.Material Characteristics of Semi-rigid Base[J].China Journal of Highway and Transport,2008,21(1):1-5.(in Chinese)
[2] SHA Q L. Asphalt Pavement on Semi-rigid Roadbase for High-class Highways[M].Beijing:China Communications Press,1998.(in Chinese)
[3] HUANG Y H.Pavement Analysis and Design[M].Upper Saddle River,U.S.:Prentice Hall,1993.
[4] AI C F,QIU Y J,MAO C,et al.Simulation of the Temperature and Load Coupling Effect on Asphalt Pavement Considering Inter-layer Conditions[J].China Civil Engineering Journal,2007,40(12):99-104.(in Chinese)
[5] WEI J C,WANG L,YANG Y S,et al.Numerical Simulation of Mechanical Response of Perpetual Road Test Asphalt Pavement[J].Journal of Highway and Transportation Research and Development,2010,27(6):15-19.(in Chinese)
[6] LV S T,ZHENG J L,ZHONG W L.Characteristics of Strength,Modulus and Fatigue Damage for Cement Stabilized Macadam in Curing Period[J].China Journal of Highway and Transport,2015,28(9):9-15.(in Chinese)
[7] JUDYCKI J,JASKULA P.Structural Design and Sensitivity Analysis of Semi-rigid Pavement of a Motorway[J]. Engineering Journal,2012,16(4):117-126.
[8] YAO Z K.Structural Design of Asphalt Pavements[M].Beijing:China Communications Press,2011.(in Chinese)
[9] BLAB R.,KAPPL K,AIGNER E,et al.A Finite-element Approach to Predict Permanent Deformation Behavior of Hot Mix Asphalt Based on Fundamental Materials Tests and Advanced Rheological Models[J].Strain,2009, 45:3-16.
[10] BROWN S F,FOO K Y.Comparison of Unconfined and Confined Creep Tests for Hot Mix Asphalt[J].Journal of Materials in Civil Engineering ASCE,1994,6(2):307-326.
[11] LI P L,ZHANG Z Q,WANG B G.Analysis of Visco-elastic Response Influecing Factors of Asphalt Mixtute[J].Journal of Zhengzhou University:Engineering Science Edition,2010,31(3):96-100.(in Chinese)
[12] PRIEST A L,TIMM D H.A Full-Scale Pavement Structural Study for Mechanistic-empirical Pavement Design[J].Journal of the Association of Asphalt Paving Technologists,2005,74:110-114.
[13] CHENG J,XU Z H,ZHANG C,et al.Research of Design Parameters of Cement-stabilized Macadam[J].Journal of Building Materials,2008,11(6):673-677.(in Chinese)
[14] MANNAN U A,ISLAM M R,TAREFDER R A.Effects of Recycled Asphalt Pavements on the Fatigue Life of Asphalt Under Different Strain Levels and Loading Frequencies[J].International Journal of Fatigue,2015,78:72-80.
[15] SUN Z H,WANG T B,XU Z H,et al.Trial Study on Influence Factors of Cement-stabilized Macadam Strength[J].Journal of Building Materials,2006,9(3):285-290.(in Chinese)
[16] SU K,WU J M,SONG T X,et al.Calculation and Analysis of Interlayer Shear Stress of Semi -rigid Asphalt Pavements[J].Journal of Shijiazhuang Railway Institute,2006,19(1):58-61.(in Chinese)
[17] YAN E H,SHEN J A.Structural Influence of Boundary Condition between Asphalt Layer and Semi-rigid Base[J].Journal of Highway and Transportation Research and Development,2004,2l(1):38-41.(in Chinese)
[18] XUE L,ZHANG W G,LIANG H J.The Mechanical Response Analysis of Asphalt Pavement in Different Interface Condition between Layers[J].Journal of Shenyang Jianzhu University:Natural Science,2006,22(4):575-578.(in Chinese)
[19] LIU H P.Analysis on the Mechanical Response of Semi-rigid Base Pavement with Interlayer Contact[D].Chengdu:Southwest Jiaotong University,2006.(in Chinese)
[20] JTG D50-2006,Specifications for Design of Highway Asphalt Pavement[S].(in Chinese)
[21] XU S L,YU X L,LI Q H.Determination of Crack Initiation and Equivalent Crack Length of Low Strength Concrete Using Strain Gauges[J].Engineering Mechanics,2015,32(12):84-89.(in Chinese)
2020, Vol. 14 
