Investigation on the impacts of gradation type and compaction level on the pavement performance of semi-flexible pavement mixture

Gong, Minghui; Xiong, Zijia; Cheng, Daizhan; Gang, Peng; Jiang, Lei; Hong, Jinxiang

doi:10.1016/j.conbuildmat.2022.126562

Cited by 15 publications

(2 citation statements)

References 28 publications

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“…In addition, the shrinkage of cement material itself is the most important factor that results cracks in semi-flexible pavement [9][10][11]. Therefore, the improvement of the crack resistance of semi-flexible mixture has become a key problem to be solved urgently in promoting its application [12][13].…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Low-Temperature Cracking and Shear Resistance of Semi-Flexible Mixture Modified by Polymers

2023

jmpd

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Semi-flexible mixture, as a rigid and flexible pavement material, has good rutting resistance and water stability, but its low-temperature cracking and shear resistance are poor. This paper studies and characterizes the low-temperature cracking resistance and shear resistance of semi-flexible mixtures modified by redispersible emulsion powder and epoxy resin. The performance of matrix asphalt mixture and cement grouting material with different polymer contents were investigated. The flexural and shear performance of polymer-modified semi-flexible mixtures were measured based on low-temperature bending test and direct shear test. The results indicate that the addition of polymers, especially epoxy resin, can significantly improve the failure strain, flexural strength, stiffness modulus and shear strength of semi-flexible mixture, thus enhancing its lowtemperature cracking and shear resistance.

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Section: Introductionmentioning

confidence: 99%

Improvement of the Low-Temperature Cracking and Shear Resistance of Semi-Flexible Mixture Modified by Polymers

2023

jmpd

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“…Cement-casting asphalt mixture has drawn great attention during the past several years in both research and application elds in China [1][2][3][4][5]. It has been widely utilized to address the severe rutting distress of asphalt pavement in heavy-duty sections, such as intersections, BRT lanes, and bus stops [6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Contribution Rates of Different Phases on Pavement Performance of Cement-Casting Asphalt Mixture

Gong

Xiong

Jiang

et al. 2022

Advances in Materials Science and Engineering

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Cement-casting asphalt mixture (CCAM) exhibits excellent antirutting properties and has been widely used to address the severe rutting distress across the world. However, CCAM’s failure mechanism has not been comprehensively understood. To this end, the contribution rates of porous asphalt mixture (PAM), cementitious network, and asphalt-cement interface phases to CCAM’s pavement performance are evaluated. A novel method was developed to fabricate the cementitious network with the aid of plastic balls. Abrasion loss, strength, peak force, and fracture energy of PAM, cement samples, and CCAM samples are obtained through different tests. Analysis results show that the contribution rate of cementitious network to Cantabro loss is around 60% and that of the interface phase is around 30%. Interface phase and PAM phase approximately contribute 90% to the overall strength and fracture energy of CCAM. With the increase of polymer contents in asphalt binder, the contribution rate of PAM phase increases and the contribution rate of interface decreases. Contribution rates results together with samples’ fracture surface observation verify that the interaction between asphalt skeleton and cement network plays a vital role during CCAM’s failure process. Attention should be given to the physical-chemical interactions between asphalt and cement in the future study.

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Research on the crack resistance of semi-flexible pavement based on bonding and rheological properties of asphalt

Yang

Zhao

2022

Construction and Building Materials

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Investigation on the impacts of gradation type and compaction level on the pavement performance of semi-flexible pavement mixture

Cited by 15 publications

References 28 publications

Improvement of the Low-Temperature Cracking and Shear Resistance of Semi-Flexible Mixture Modified by Polymers

Improvement of the Low-Temperature Cracking and Shear Resistance of Semi-Flexible Mixture Modified by Polymers

Evaluation of the Contribution Rates of Different Phases on Pavement Performance of Cement-Casting Asphalt Mixture

Research on the crack resistance of semi-flexible pavement based on bonding and rheological properties of asphalt

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