Experimental Studies on Microstructure and Technical Performance of Multiphase Compound Crumb Rubber Modified Asphalt

Wang, Lan; Xing, Yongming; Chang, Chunqing

doi:10.1061/41127(382)310

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Bradley et al [24] explored the interaction of rubber particles with asphalt and the particle effects. Wang et al [25] investigated the microstructure of rubber particles and the interface properties between rubber particles and the base asphalt. Frédérique et al [26] employed a wetting dynamics approach to calculate the surface energies between rubber particles and asphalt, explaining the compatibility between rubber particles and asphalt.…”

Section: Introductionmentioning

confidence: 99%

Interface Interaction of Waste Rubber–Asphalt System

Su,

Li,

Zhu

et al. 2024

Buildings

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Asphalt pavement construction is a large-volume project, with the ability to recycle the industrial waste and reduce carbon emissions. Rubber-modified asphalt is a carbon-neutralized asphalt-based material, facilitating the recycling of waste rubber materials and improving the road performance of the asphalt mixture. To evaluate the interface interaction of the rubber–asphalt system and its effect on the viscosity characteristics of rubber-modified asphalt, the contact properties of rubber particles in asphalt were analyzed on a microscopic level. Rubber swelling tests and solvent elution tests were conducted on the rubber–asphalt system under different preparation conditions. The swelling ratio, degradation ratio, and swelling–degradation ratio were proposed to evaluate the interface interaction. The results show that the interface interaction of the rubber–asphalt system can be divided into the following three stages: swelling, effective degradation, and over-degradation. The degree of swelling is mainly affected by the content and size of the rubber particles and it is physically condensed, while the degradation is mainly affected by the preparation temperature and preparation time. The effective interface interaction greatly affects the viscosity with the building of the stable three-dimensional network structure. The stronger the interface interaction, the greater the viscosity of the rubber-modified asphalt, except for the 25% content of rubber particles. The gel film will be generated on the surface of the rubber particles throughout the swelling and effective degradation, increasing the viscosity of the rubber-modified asphalt.

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Section: Introductionmentioning

confidence: 99%

Interface Interaction of Waste Rubber–Asphalt System

Su,

Li,

Zhu

et al. 2024

Buildings

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“…[Wang, 2010]. Understanding the complex mechanical interaction that exists between the constituents of the asphalt concrete requires a reliable way to characterize the AC micro-structure.…”

Section: Introductionmentioning

confidence: 99%

Asphalt Internal Structure Characterization with X-Ray Computed Tomography and Digital Image Processing

et al. 2013

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Abstract. In this paper, detailed study is carried out to develop a new workflow from image acquisition to numerical simulation for the asphalt concrete microstructures. High resolution computed tomography scanned images are acquired and the image quality is improved using digital image processing techniques. Nonuniform illumination is corrected by applying an illumination profile to correct the background and flat-fields in the image. Distance map based watershed segmentation are used to segment the phases and separate the aggregates. Quantitative analysis of the micro-structure is used to determine the phase volumetric relationship and aggregates characteristics. The result of the quantitative analysis showed a very high level of reliability. Finite Element simulations were carried out with the developed micro-mechanical meshes to capture the strength and deformation mechanisms of the asphalt concrete micro-structure. From the micro-mechanical investigation the load transfer chains, higher strength characteristics and high stress localization at the mastic interface between adjacent aggregates was shown.

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High-Temperature Behavior of Compound Crumb Rubber Modified Asphalt

Cui¹,

Wang²

2011

Icte 2011

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Experimental Studies on Microstructure and Technical Performance of Multiphase Compound Crumb Rubber Modified Asphalt

Cited by 3 publications

References 9 publications

Interface Interaction of Waste Rubber–Asphalt System

Interface Interaction of Waste Rubber–Asphalt System

Asphalt Internal Structure Characterization with X-Ray Computed Tomography and Digital Image Processing

High-Temperature Behavior of Compound Crumb Rubber Modified Asphalt

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