Evaluation of aggregate gradation on aggregate packing in porous asphalt mixture (PAM) by 3D numerical modelling and laboratory measurements

Kusumawardani, D. M.; Wong, Yiik Diew

doi:10.1016/j.conbuildmat.2020.118414

Cited by 38 publications

(4 citation statements)

References 17 publications

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“…With the development of advanced techniques, such as CT and the Aggregate Image Measurement System (AIMS) [101], it is possible to reconstruct 3D digital aggregate particles with morphological properties [102][103][104], which makes it possible to directly conduct a virtual design of the asphalt mixture. During the virtual design process, several basic parameters, such as aggregate gradation, spatial distribution, orientation, shape, angularity, texture, aggregate content, asphalt content, and air void content, will undoubtably affect the macroscale performance of the entire asphalt mixture and the microscale mechanical response inside a sample.…”

Section: Proportion Design Of the Asphalt Mixturementioning

confidence: 99%

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Wang,

Wang

2024

Materials

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Asphalt pavement, which is mainly made up of the asphalt mixture, exhibits complicated mechanical behaviors under the combined effects of moving vehicle loads and external service environments. Multi-scale numerical simulation can well characterize behaviors of asphalt materials and asphalt pavement, and the essential research progress is systematically summarized from an entire view. This paper reviews extensive research works concerning aspects of the design, characterization, and prediction of performance for asphalt materials and asphalt pavement based on multi-scale numerical simulation. Firstly, full-scale performance modeling on asphalt pavement is discussed from aspects of structural dynamic response, structural and material evaluation, and wheel–pavement interaction. The correlation between asphalt material properties and pavement performance is also analyzed, and so is the hydroplaning phenomenon. Macro- and mesoscale simulations on the mechanical property characterization of the asphalt mixture and its components are then investigated, while virtual proportion design for the asphalt mixture is introduced. Features of two-dimensional and three-dimensional microscale modeling on the asphalt mixture are summarized, followed by molecular dynamics simulation on asphalt binders, aggregates, and their interface, while nanoscale behavior modeling on asphalt binders is presented. Finally, aspects that need more attention concerning this study’s topic are discussed, and several suggestions for future investigations are also presented.

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Section: Proportion Design Of the Asphalt Mixturementioning

confidence: 99%

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Wang,

Wang

2024

Materials

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“…Considering the relationship between the porosity of a permeable asphalt pavement and the key sieve 2 of 18 holes, the key sieve hole affecting the porosity of the mixture has a passing rate of 2.36 mm. Careful design to achieve passing rates of 4.75 mm and 2.36 mm allows the mixture to more easily form a skeleton structure [6][7][8]. The porosity of a permeable asphalt mixture affects the high-temperature stability, low-temperature deformation resistance and water damage resistance.…”

Section: Introductionmentioning

confidence: 99%

Thermal-Mechanical Coupling Analysis of Permeable Asphalt Pavements

Li,

Wang,

Zhang

et al. 2024

Coatings

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In order to clarify the mechanical response of permeable asphalt pavements under a temperature effect, the mechanical responses of different types of permeable asphalt pavements, which were based on a self-developed drainage SBS-modified asphalt mixture with fiber, were simulated using ANSYS finite element software(APDL 19.2). The influence of temperature and temperature change on the mechanical behavior of the permeable asphalt pavements was studied, and the mechanical responses of the pavements at different driving speeds was analyzed. The results show that the extreme values of surface deflection, compressive strain of the soil foundation top surface, and the shear stress and tensile stress of the upper-layer bottom of the three kinds of pavements under dynamic load were about 10% smaller than those under static loads, and the extreme values under different temperature conditions were 28%~50% larger than the values obtained without different temperature conditions. During the 12 h heating process, the mechanical indexes of the three types of pavements with axle loads were consistent with the change law of temperature, and the peak values of the mechanical indexes under dynamic loads were smaller than those under static loads. In addition, the mechanical indexes of the three types of pavements under dynamic loads had the same law of change with speed under the same conditions, and the values were less than the extreme values under static loads, but the degree of influence was different.

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“…The study provided useful information for pavement engineering in the design of porous asphalt pavement. Kusumawardani and Wong studied nine aggregate gradations with variations in 2.36–4.75 and 6.3–9.5 mm fractions by the discrete element method algorithmic simulations . If these studies were combined with more laboratory experiments, the results would be more fruitful.…”

Section: Introductionmentioning

confidence: 99%

“…Kusumawardani and Wong studied nine aggregate gradations with variations in 2.36–4.75 and 6.3–9.5 mm fractions by the discrete element method algorithmic simulations. 15 If these studies were combined with more laboratory experiments, the results would be more fruitful. Hence, laboratory experiments of OGFCs were carried out in this study.…”

Section: Introductionmentioning

confidence: 99%

Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture

Wang

Cai

et al. 2022

ACS Omega

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The open-graded friction courses (OGFCs) have a large number of interconnected voids, which may cause serious water damage to the pavement. Hence, the road performance needs to be investigated. In this study, the mechanical properties of OGFCs containing two different fibers (lignin and mineral fiber) were investigated. Based on the procedure proposed by the Chinese specification JTG F40-2004, OGFCs were designed with the asphalt content between 4.1 and 4.7 wt % to find the optimal asphalt content (OAC). The mesh-basket draindown test was used to check the fiber’s stabilization and absorption of bitumen. OGFCs containing the lignin/mineral fiber with OAC would be preferred in terms of the bulk specific gravity. These results indicate that the fiber can bring higher air voids to the OGFCs, and the different specific gravities of fibers may primarily account for the result. Both the lignin and mineral fibers can bring much more asphalts padded in the pores of mineral aggregates and subsequently larger OAC in OGFCs due to their higher asphalt absorption. Performance experiments were carried out to check the dynamic stability and moisture susceptibility of OGFCs containing the lignin/mineral fiber. The study suggests that the lignin and mineral fiber can be used to adjust the internal environment of OGFCs, enhancing the moisture damage resistance and improving the rutting resistance of OGFCs at high temperatures.

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Evaluation of aggregate gradation on aggregate packing in porous asphalt mixture (PAM) by 3D numerical modelling and laboratory measurements

Cited by 38 publications

References 17 publications

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Review on Design, Characterization, and Prediction of Performance for Asphalt Materials and Asphalt Pavement Using Multi-Scale Numerical Simulation

Thermal-Mechanical Coupling Analysis of Permeable Asphalt Pavements

Effects of Fiber Type on the Mechanical Properties of the Open-Graded Friction Course Mixture

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