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| 1 | Three-dimensional modeling and simulation of asphalt concrete mixtures based on X-ray CT microstructure images显示文摘X-ray CT(computed tomography) was used to scan asphalt mixture specimen to obtain high resolution continuous cross-section images and the meso-structure.According to the theory of three-dimensional(3D) reconstruction,the 3D reconstruction algorithm was investigated in this paper.The key to the reconstruction technique is the acquisition of the voxel positions and the relationship between the pixel element and node.Three-dimensional numerical model of asphalt mixture specimen was created by a self-developed program.A splitting test was conducted to predict the stress distributions of the asphalt mixture and verify the rationality of the 3D model. | Hainian Wang Zhihan Huang Lei Li Zhanping You Yu Chen | 2014 | Journal of Traffic and Transportation Engineering(English Edition)2014，1，1： | 30 |
| 2 | New innovations in pavement materials and engineering:A review on pavement engineering research 2021显示文摘Sustainable and resilient pavement infrastructure is critical for current economic and environmental challenges.In the past 10 years,the pavement infrastructure strongly supports the rapid development of the global social economy.New theories,new methods,new technologies and new materials related to pavement engineering are emerging.Deterioration of pavement infrastructure is a typical multi-physics problem.Because of actual coupled behaviors of traffic and environmental conditions,predictions of pavement service life become more and more complicated and require a deep knowledge of pavement material analysis.In order to summarize the current and determine the future research of pavement engineering,Journal of Traffic and Transportation Engineering(English Edition)has launched a review paper on the topic of'New innovations in pavement materials and engineering:A review on pavement engineering research 2021'.Based on the joint-effort of 43 scholars from 24 well-known universities in highway engineering,this review paper systematically analyzes the research status and future development direction of 5 major fields of pavement engineering in the world.The content includes asphalt binder performance and modeling,mixture performance and modeling of pavement materials,multi-scale mechanics,green and sustainable pavement,and intelligent pavement.Overall,this review paper is able to provide references and insights for researchers and engineers in the field of pavement engineering. | JTTE Editorial Office Jiaqi Chen Hancheng Dan Yongjie Ding Yangming Gao Meng Guo Shuaicheng Guo Bingye Han Bin Hong Yue Hou Chichun Hu Jing Hu Ju Huyan Jiwang Jiang Wei Jiang Cheng Li Pengfei Liu Yu Liu Zhuangzhuang Liu Guoyang Lu Jian Ouyang Xin Qu Dongya Ren Chao Wang Chaohui Wang Dawei Wang Di Wang Hainian Wang Haopeng Wang Yue Xiao Chao Xing Huining Xu Yu Yan Xu Yang Lingyun You Zhanping You Bin Yu Huayang Yu Huanan Yu Henglong Zhang Jizhe Zhang Changhong Zhou Changjun Zhou Xingyi Zhu | 2021 | Journal of Traffic and Transportation Engineering(English Edition)2021，8，6： | 7 |
| 3 | Review on evolution and evaluation of asphalt pavement structures and materials显示文摘The purpose of this study was to summarize the wide-range literatures on asphalt pavements, explore the evolution of road pavements, analyze typical asphalt pavement structures, highlight current trends in research and industry, and to recommend future areas of research and development. In this research, road pavement evolution was explored from the earliest roads to the modern pavements. A new method was recommended to categorize asphalt pavement materials into the three large families which may be further sub-divided according to their mechanical parameters. A unified asphalt pavement classification(UAPC) method was proposed and the worldwide asphalt pavements could be divided into six types through the new method. Based o n the UAPC method, 1087 asphalt pavement structures were classified and analyzed to explore the asphalt thickness variation. In order to evaluate asphalt pavement performance, the Chinese design specification was employed for analyzing lives of 29 high-volume pavements and 28 low-volume pavements. Through this research, it was found that:(1) in the past 100 years, asphalt pavement materials and structures had been becoming more and more strong;(2) asphalt layer thicknesses were various from 5 to 60 cm and the overall pavement thicknesses were various from 28 to 160 cm;(3) the long-life pavements in the other countries may become'shorter-life' pavements according to the prediction based on the Chinese specification. | Yu Liu Peifeng Su Miaomiao Li Zhanping You Mohan Zhao | 2020 | Journal of Traffic and Transportation Engineering(English Edition)2020，7，5： | 6 |
| 4 | Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay显示文摘Asphalt concrete (AC)overlays placed over old asphalt pavement have become an alternative to repairing and reinforcing pavements.The strength contributed by the AC overlay is strongly influenced by the anisotropic properties of the pavement material.This study was conducted to analyze the influence of anisotropy,modulus gradient properties,and the condition of the AC overlay and old pavement contact plane on the mechanical behaviors of AC overlays,as well as to quantify the influence of the degree of anisotropy on the mechanical behaviors of AC overlay by a sensitivity analysis (SA).The mechanical behaviors of the AC overlay were numerically obtained using the three- dimensional finite element method with the aid of ABAQUS,a commercial program.Variations in the AC overlay's modulus as a function of temperature as well as the contact state between the AC overlay and AC layer were considered. The SA is based on standardized regression coefficients method.Comparing the mechanical behavior in terms of surface deflection,stress,and strain of the anisotropy model against those corresponding to the isotropic model under static loads show that the anisotropic properties had greater effects on the mechanical behavior of the AC overlay.In addition,the maximum shear stress in the AC overlay was the most significant output parameter affected by the degree of anisotropy. Therefore,future research concerning the reinforcement and repair of pavements should consider the anisotropic properties of the pavement materials. | Lingyun YOU Zhanping YOU Kezhen YAN | 2019 | Frontiers of Structural and Civil Engineering2019，13，1： | 4 |
| 5 | Sensitivity analysis of longitudinal cracking on asphalt pavement using MEPDG in permafrost region显示文摘Longitudinal cracking is one of the most important distresses of asphalt pavement in permafrost regions. The sensitivity analysis of design parameters for asphalt pavement can be used to study the influence of every parameter on longitudinal cracking, which can help optimizing the design of the pavement structure. In this study, 20 test sections of Qinghai e Tibet Highway were selected to conduct the sensitivity analysis of longitudinal cracking on material parameter based on Mechanistic-Empirical Pavement Design Guide(MEPDG) and single factorial sensitivity analysis method. Some computer aided engineering(CAE) simulation techniques, such as the Latin hypercube sampling(LHS) technique and the multiple regression analysis are used as auxiliary means.Finally, the sensitivity spectrum of material parameter on longitudinal cracking was established. The result shows the multiple regression analysis can be used to determine the remarkable influence factor more efficiently and to process the qualitative analysis when applying the MEPDG software in sensitivity analysis of longitudinal cracking in permafrost regions. The effect weights of the three parameters on longitudinal cracking in descending order are air void, effective binder content and PG grade. The influence of air void on top layer is bigger than that on middle layer and bottom layer. The influence of effective asphalt content on top layer is bigger than that on middle layer and bottom layer, and the influence of bottom layer is slightly bigger than middle layer.The accumulated value of longitudinal cracking on middle layer and bottom layer in the design life would begin to increase when the design temperature of PG grade increased. | Chen Zhang Hainian Wang Zhanping You Biao Ma | 2015 | Journal of Traffic and Transportation Engineering(English Edition)2015，2，1： | 4 |
| 6 | A review on the best practices in concrete pavement design and materials in wet-freeze climates similar to Michigan显示文摘The research presented in this paper aims to identify best practices of design and materials for concrete pavements in wet-freeze climates similar to the Michigan State. For the purposes of this paper, a best practice is a procedure that has been shown by field-validated research or experience to produce improved results and that is established or proposed as a standard suitable for widespread implementation. The local wet-freeze climate makes the requirements for Michigan's pavement system different from many other regions. Wetfreeze climates can result in various concrete pavement distress mechanisms such as thermally-induced cracking, freeze-thaw deterioration, accelerated cracking due to loss of support, frost heave, and material degradation. Therefore, appropriate procedures for design and material selection need to be selected to withstand high precipitation and freezing winter temperatures. Failure to take into account the climatic conditions may lead to inadequate or reduced pavement performance. However, utilizing appropriate techniques and materials could potentially improve the quality and increase the service life of the concrete pavement. Three design methods and five materials have been identified, and examples of their successful performance in wet-freeze climates are provided. In addition, the reasons that give them the superior performance in wet-freeze climates are discussed in detail. | Naser P. Sharifi Siyu Chen Zhanping You Thomas Van Dam Christopher Gilbertson | 2019 | Journal of Traffic and Transportation Engineering(English Edition)2019，6，3： | 3 |
| 7 | Comparative study of ethanol foamed asphalt binders and mixtures prepared via manual injection and laboratory foaming device显示文摘The consistency of the ethanol foamed binders and mixtures prepared using asphalt binders foamed by the manual injection technique and laboratory foaming device were evaluated and compared in this study. The asphalt binders foamed using both methods was prepared at 120℃, 130℃ and 140℃. The performance of ethanol-foamed binders was evaluated in terms of rotational viscosity, expansion ratio, and low temperature cracking.Meanwhile, the performance of foamed WMA mixtures was tested using semi-circular bending(SCB), disk-shaped compact tension(DCT), and tensile strength ratio(TSR) tests. In order to conduct the TSR test, the samples were conditioned using the Moisture Induced Stress Tester(MIST) to simulate the pore pressure and scouring effects due to a tire passing over wet pavement. The foamed WMA mixtures were produced using pre-heated aggregates at 80℃ and 100℃ and foamed asphalt binders produced at 130℃. The nano-hydrated lime was used as the filler and anti-stripping agent. Overall, the properties of ethanol-foamed binders and WMA mixtures produced via both methods are significantly comparable, except the resistance to moisture damage test result. However, the findings indicate that the ethanol-foamed WMA mixtures prepared using both techniques are having good resistance to moisture damage, based on the TSR values more than 0.8. The foamed WMA mixtures also exhibited a better resistance to cracking, as indicated by a higher tensile strength compared to the control HMA. Additionally, the WMA specimen prepared at 100℃ was less susceptible to rutting than the samples produced at 80℃. | Mohd Rosli Mohd Hasan Zhanping You | 2019 | Journal of Traffic and Transportation Engineering(English Edition)2019，6，4： | 2 |
| 8 | Review of recycling waste plastics in asphalt paving materials显示文摘An ever-growing demand for depleted natural resources is one of the significant challenges facing the global asphalt pavement industry in building and maintaining global asphalt pavements.Because plastics are ubiquitous in the global economy,they are the latest in a series of high-profile materials to attract attention.Their low material recovery rates and the environmental impact of current disposal methods pose a threat to plastic recycling.Recycling plastic wastes in asphalt pavement is a possible approach to reducing environmental pressure and the demand for depleted natural resources.Many studies have proposed recycling plastic waste in asphalt pavement using dry-and wet-processed technologies.This review aims to comprehensively evaluate the feasibility of various recycled plastics in asphalt pavement concerning the properties of compatibility,storage stability,microstructure,thermo-rheology,and mechanical performance and to identify hallenges and recommendations for the future.This review discusses recent developments and the feasibility of using plastic wastes as modifiers or additives to asphalt binders or asphalt mixtures in dry and wet processes,focusing on different materials from waste streams,how to produce such modified materials,and the characteristics of plastic waste modified asphalt,thus contributing to the sustainable management of resources and production of useful paving materials. | Lingyun You Zhengwu Long Zhanping You Dongdong Ge Xu Yang Fu Xu Mohammad Hashemi Aboelkasim Diab | 2022 | Journal of Traffic and Transportation Engineering(English Edition)2022，9，5： | 2 |
| 9 | Research and applications of artificial neural network in pavement engineering:A state-of-the-art review显示文摘Given the great advancements in soft computing and data science,artificial neural network(ANN)has been explored and applied to handle complicated problems in the field of pavement engineering.This study conducted a state-of-the-art review for surveying the recent progress of ANN application at different stages of pavement engineering,including pavement design,construction,inspection and monitoring,and maintenance.This study focused on the papers published over the last three decades,especially the studies conducted since 2013.Through literature retrieval,a total of 683 papers in this field were identified,among which 143 papers were selected for an in-depth review.The ANN architectures used in these studies mainly included multi-layer perceptron neural network(MLPNN),convolutional neural network(CNN)and recurrent neural network(RNN)for processing one-dimensional data,two-dimensional data and time-series data.CNN-based pavement health inspection and monitoring attracted the largest research interest due to its potential to replace human labor.While ANN has been proved to be an effective tool for pavement material design,cost analysis,defect detection and maintenance planning,it is facing huge challenges in terms of data collection,parameter optimization,model transferability and low-cost data annotation.More attention should be paid to bring multidisciplinary techniques into pavement engineering to tackle existing challenges and widen future opportunities. | Xu Yang Jinchao Guan Ling Ding Zhanping You Vincent C.S.Lee Mohd Rosli Mohd Hasan Xiaoyun Cheng | 2021 | Journal of Traffic and Transportation Engineering(English Edition)2021，8，6： | 2 |
| 10 | DynamicModulus Simulation of the Asphalt Concrete Using the X-ray Computed Tomography Images 显示文摘 | YOU Zhanping ADHIKARI S KUTAY M E | 2009 | Materials andStructures2009，42，5： | 1 |
| 11 | Evaluation of Low-temperature Binder Properties of Warm-mix Asphalt,Extracted and Recovered RAP and RAS,and Bioasphalt显示文摘 | You Zhanping Mills-Beale Julian Fini Elham | 2011 | Journal of Materials in Civil Engineering2011，23，11： | 1 |
| 12 | Discrete element model- ing of asphalt concrete: microfabric approach 显示文摘 | Buttlar W G You Zhanping | 2001 | Transportation Research Record: Journal of the Trans- portation Research Board2001，，1757： | 1 |
| 13 | Prediction of creep stiff- ness of asphalt mixture with micromechanical finite-el- ement and discrete-element models 显示文摘 | Dai Qingli You Zhanping | 2007 | Journal of En- gineering Mechanics2007，133，2： | 1 |
| 14 | Viscoelastic model for discrete element simulation of asphalt mixtures 显示文摘 | Liu Yu Dai Qingli You Zhanping | 2009 | Journal of Engineering Mechanics2009，135，： | 1 |
| 15 | Performance Evaluation of Asphalt Binder Modified by Bio-oil Generated from Waste WoodResources显示文摘 | Yang Xu You Zhanping | 2013 | International Journal of Pavement Research and Technology2013，6，4： | 1 |
| 16 | 3D discrete element mod- els of the hollow cylindrical asphalt concrete specimens subject to the internal pressure显示文摘 | Adhikari S You Zhanping | 2010 | International Jour- nal of Pavement Engineering2010，11，5： | 1 |
| 17 | Dynamic Modulus Simulation of the Asphalt Concrete Using the X-ray Computed Tomography Images显示文摘 | Zhanping You Sanjeev Adhikari | 2009 | Materials and Struc- tures2009，42，： | 1 |
| 18 | Labo-ratory Evaluation on High Temperature Viscosity and Low Tem-perature Stiffness of Asphalt Binder with High Percent Scrap Tire Rubber显示文摘 | Hainian Wang Zhanping You Julian Mills-Beale | 2012 | Construction and Building Materials2012，26，1： | 1 |
| 19 | The determination of mechanical performance of laboratory produced hot mix asphalt mixtures using controlled RAP and virgin aggregate size fractions显示文摘 | COLBERT B YOU Zhanping | 2012 | Construction and Building Materials2012，26，： | 1 |
| 20 | Development and Implementation of a Finite Element Model for Asphalt Mixture to Predict Compressive Complex Moduli at Low and Intermediate Temperatures显示文摘 | You Zhanping Dai Qingli Bardan Gurung | 2006 | Asphalt Concrete2006，2128，： | 1 |
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