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asphalt pavement water film thickness detection and prediction model:A review

Journal of Traffic and Transportation Engineering(English Edition) 2023年第3期10卷 349-367页

作者： Ke Xiao Bing Hui Xin Qu Hainian Wang Aboelkasim Diab Min Cao School of Highway Chang'an UniversityXi'an 710064China Key Laboratory of Intelligent Construction and Maintenance of CAAC Xi'an 710064China Department of Civil Engineering Aswan UniversityAswan 81542Egypt Wuhan Optics Valley ZOYON Science and Technology Co.Ltd. Wuhan 430000China

Over the course of storm or rainfall event,water thickness builds up on road surface resulting in a loss of contact between vehicle tires and road surface and puts drivers into immediate danger especially at high *** this is a considerably dangerous condition of the road and the realistic measurements and prediction model of water film thickness(WFT)on pavement surface is crucial for determining the road friction coefficient and evaluating the impact of rainfall on traffic safety.A review of the principle as well as critical evaluation of current detection methods of pavement WFT were compared for consistency and accuracy in this *** method selection guidelines are given for different road surface water film thickness detection *** paper also introduces the latest development of WFT detection and prediction models for asphalt pavement,and gives the calculation elements and conditions of different WFT prediction models from different modeling ideas,which provides a basis for the selection and optimization of WFT models for future *** article also suggests a few insights as further research directions on this topic.(1)The research can consider the influencing factors of WFT to conduct research on the delineation standard of pavement WFT.(2)In order to meet the future traffic safety dynamic early warning needs,road factors of different material types,disease conditions and linear conditions should be studied,as well as a comprehensive and accurate real-time water film thickness detection and evaluation method considering meteorological factors of rainfall timing,scale and intensity.(3)The prediction model of WFT should be further studied by the analytical method to clarify the influence of the pavement WFT on the driving safety.

关键词： asphalt pavement Water film thickness Detection method Prediction model

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Complex network approach for the evaluation of asphalt pavement design and construction: a longitudinal study

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Science China(Information Sciences) 2022年第7期65卷 210-224页

作者： Hanjie LIU Jinde CAO Wei HUANG Xinli SHI Xudong WANG School of Mathematics Southeast University Jiangsu Provincial Key Laboratory of Networked Collective Intelligence Southeast University Research Institute of Highway Ministry of Transport Intelligent Transportation System Research Center Southeast University School of Cyber Science and Engineering Southeast University

The assessment of asphalt pavement structures with diversified designs and constructions has been a critical challenge due to the practical limitations in testing and methodology. Here, we propose a complex network approach to the evaluation of longitudinal asphalt pavement performances in the Research Institute of Highway Ministry of Transport track(RIOHTrack). We add to the growing field in which network approaches are employed and indicate the profound application in understanding pavement ***, similar and disparate pavement performances are revealed regardless of their predefined design and construction categories. Evidence shows that short-term pavement performance depends on the strength of the subbase structure, whereas long-term performance relies on the thickness of the asphalt layer. In addition, our results indicate that recycling materials could be an important substitute for reducing the thickness of asphalt concrete and maintaining a healthy service life.

关键词： complex network asphalt pavement structure evaluation longitudinal RIOHTrack

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Surface deflection-based reliability analysis of asphalt pavement design

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Science China(Technological Sciences) 2020年第9期63卷 1824-1836页

作者： HUANG Wei LIANG SiMing WEI Ya Intelligent Transportation System Research Center Southeast UniversityNanjing210096China Department of Civil Engineering Tsinghua UniversityBeijing100084China

The surface deflection of asphalt pavement reflects the strength and stiffness of the entire structure, which can be used to evaluate the rutting life of asphalt pavements. However, it is influenced by various stochastic variables including traffic loads, material properties and structural thickness of each pavement course. The uncertainty of above stochastic variables is of significance for accurately predicting the rutting life of asphalt pavement. In this study, the statistical characteristics of stochastic variables of asphalt pavement were assessed based on the field data collected from asphalt pavement projects. A unique formula with a fairly good accuracy was found using multiple linear regression based on numerical simulation results to ease the calculation of pavement deflection during the reliability analysis. It is shown that the stochastic variables of asphalt pavement can be well characterized by normal distribution or logarithmic normal distribution. The regressed formula to calculate the surface deflection of pavement has a fairly good accuracy with an error of less than 6.0% compared to the numerical method. The proposed surface deflection-based reliability analysis can be used easily to evaluate the influence of input parameters on the rutting life and to guide the structure design of asphalt pavement with required reliability.

关键词： asphalt pavement surface deflection rutting life reliability regressive model to calculate pavement deflection

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A cumulative damage model for predicting and assessing raveling in asphalt pavement using an energy dissipation approach

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Frontiers of Structural and Civil Engineering 2024年第6期18卷 949-962页

作者： Kailing DENG Duanyi WANG Cheng TANG Jianwen SITU Luobin CHEN School of Civil Engineering and Transportation South China University of TechnologyGuangzhou 510640China

Raveling is a common distress of asphalt pavements,defined as the removal of stones from the pavement *** predict and assess raveling quantitatively,a cumulative damage model based on an energy dissipation approach has been developed at the meso *** construct the model,a new test method,the pendulum impact test,was employed to determine the fracture energy of the stone-mastic-stone meso-unit,while digital image analysis and dynamic shear rheometer test were used to acquire the strain rate of specimens and the rheology property of mastic,*** of the model reveals that when the material properties remain constant,the cumulative damage is directly correlated with loading time,loading amplitude,and loading ***,damage increases with superimposed linear and cosine variations over time.A higher stress amplitude results in a more rapidly increasing rate of damage,while a lower load frequency leads to more severe damage within the same loading ***,an example of the application of the model has been presented,showing that the model can be utilized to estimate failure life due to *** model is able to offer a theoretical foundation for the design and maintenance of anti-raveling asphalt pavements.

关键词： asphalt pavement raveling cumulative damage dissipation energy theory

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Thermal performance of cooling strategies for asphalt pavement: A state-of-the-art review

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第3期8卷 356-373页

作者： Salam Ridha Oleiwi Aletba Norhidayah Abdul Hassan Ramadhansyah Putra Jaya Eeydzah Aminudin Mohd Zul Hanif Mahmud Azman Mohamed Ahmed Abdulameer Hussein School of Civil Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohor Bahru 81300JohorMalaysia Department of Civil Engineering College of EngineeringUniversiti Malaysia PahangGambang 26300PahangMalaysia

asphalt pavements absorb and store more heat than natural surfaces. Thus, high temperatures are emitted from conventional asphalt pavements, subsequently releasing heat into the atmosphere and contributing to the urban heat island(UHI) phenomenon. Several cool pavement strategies, including the provision of additives and materials, surface coating and layer design, have been introduced to reduce the impact of UHI. This article provides a detailed review of the thermal properties of these mitigation measures in the context of cool asphalt pavements. The literature can be divided into three segments. The first segment discusses the impact of pavements on UHI and heat transfer mechanisms in pavements. The second segment focuses on various thermo physical properties that play an important role in mitigation measures;these properties include albedo(a), emissivity(e),solar reflective index, thermal conductivity(k), specific heat capacity(Cp) and thermal diffusivity. The third segment discusses cool asphalt pavement strategies which specifically cover the ability of the pavement to absorb and reflect solar energy on the basis of the materials and treatments used. The literature reveals that cooling strategies that deal with the pavement surface are important due to its direct incident solar effect, which depends on surface colour, material, shape and roughness. By using high-albedo and high-emissivity surfaces, the pavement can store less heat and lower the surface temperature. These results can also be achieved by designing the materials and pavement layers with low thermal conductivity and high specific heat capacity to reduce thermal diffusivity and pavement temperature and thus combat the heat radiated by the asphalt pavement.

关键词： Road engineering Urban heat island Cool pavements asphalt pavement Thermal properties

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A technical survey on mechanism and influence factors for asphalt pavement skid-resistance

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Friction 2024年第5期12卷 845-868页

作者： Xiyin LIU Haoyuan LUO Can CHEN Leyi ZHU Siyu CHEN Tao MA Xiaoming HUANG School of Transportation Southeast UniversityNanjing211189China

To explore the research status on mechanism of the skid-resistance for asphalt pavement, the related achievements of the rubber friction, the tire–road contact, and the influence factors were reviewed. The rubber friction was reviewed from the mechanism and rubber friction model. The tire-road contact was studied from the modeling methods, the evaluation methods, and the skid-resistance mechanisms at different conditions. The influence factors of skid-resistance were summarized from different designing processes. This review showed that the appropriate contact or evaluation model should be selected according to the required parameters. Although the finite element method is widely used, the accuracy of the model, the boundary conditions, and the load cases need to be further improved. The optimized aggregates and asphalt binders, reasonable gradation, reasonable geometric design, and strict construction quality control are necessary for good initial skid-resistance. pavement texture as an important factor affecting skid-resistance should be considered in pavement gradation design, especially for wearing layer technology.

关键词： asphalt pavement rubber friction tire-road contact skid-resistance

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Review on evolution and evaluation of asphalt pavement structures and materials

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Journal of Traffic and Transportation Engineering(English Edition) 2020年第5期7卷 573-599页

作者： Yu Liu Peifeng Su Miaomiao Li Zhanping You Mohan Zhao School of Highway Chang'an UniversityXi'an 710064China Department of Civil and Environmental Engineering Michigan Technological UniversityHoughtonMI 49931USA

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.

关键词： Road engineering asphalt pavement Materials classification pavement life Structural classification Road evolution

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Genetic Optimization Method of asphalt pavement Based on Rutting and Cracking Control

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Journal of Wuhan University of Technology(Materials Science) 2003年第1期18卷 72-75页

作者：刘沐宇 WuhanUniversityofTechnology

Nowadays asphalt pavement structure bearing is not the main subject for pursuers to ***,the pavement performance is more important and *** on this,rutting and cracking analysis is introduced into pavement optimization.A optimization model based on these two considerations is also *** genetic algorithms (GAs) is adopted to solve the *** is an intellective *** research provides a new idea and technique for asphalt pavement structure optimization.

关键词： asphalt pavement optimization genetic algorithms rutting cracking

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Characterization of bonding property in asphalt pavement interlayer: A review

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第3期8卷 374-387页

作者： Kai Yang Rui Li School of Highway Chang'an UniversityXi'an 710064China Department of Civil Construction and Environment EngineeringNorth Carolina State UniversityRaleighNC 27606USA

Higher requirements are put forward for interlayer bonding property with the increase of traffic load, including bearing capacity and durability. Typical diseases caused by insufficient adhesion between layers are slippage cracking, de-bonding and pavement deformation. The correct characterization of bonding property becomes necessary with evolving concerns of interlayer failure and material innovations. In the past forty years, many researches have focused on the evaluation of interlayer bonding property, and some valuable conclusions have been drawn. In this review, the mechanism, evaluation method and influencing factors of the interlayer bond strength are reviewed. The common test equipment can be classified into the shear, pull-off and torsion test. Different influence factors are analyzed including tack coat property, temperature, asphalt aging and surface condition. It is recommended to select the appropriate tack coat rate, and apply the tack coat under the conditions of clean, dry, high surface texture and good compaction. However, the interlayer failure mechanism and the interaction between the different influencing factors need to be further studied. The future work can focus on the correlation between different test methods and evaluation parameters, which would address the lack of harmonization or consistency among various evaluation approaches. Meanwhile, it is significant to add the evaluation of interlayer bonding property into the system of pavement design.

关键词： Interlayer bonding asphalt pavement Interface strength Tack coat Influencing factors

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New asphalt pavement Failure Criterion Based on Unified Strength Theory

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Journal of Wuhan University of Technology(Materials Science) 2015年第3期30卷 528-532页

作者：杨群 CHEN Lu 王屏 DAI Jingwang Key Laboratory of Road and Traffi c Engineering of the Ministry of Education Tongji University

This study aims to introduce an appropriate analytical method for asphalt pavement based upon unified strength theory （UST）. The traditional maximum shear stress strength theory （MSST） cannot describe the marked difference between tension strength and compressive strength or variable intermediate principal stress, which significantly affects the geotechnical materials. Our studies try to find a new asphalt pavement failure criterion that considers the influence of both tension-compression strength ratio and intermediate principal stress of asphalt mixture. In order to select a suitable theory on pavement material, the UST is introduced and compared with the traditional theory. Results show that the tension-compression strength ratio of asphalt mixture, which is used as a material parameter, dramatically affects the stress and stress distribution law in pavement; the pavement stress level increases dramatically after considering the intermediate principal stresses. Therefore, the UST which considers both tension-compression strength ratio and intermediate principal stress is more in line with the material characteristics of asvhalt pavement.

关键词： asphalt pavement strength theory unified strength theory

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