Design and performance evaluation of Bi-block precast rubberized epoxy asphalt trackbed for railway

Shi, Chenguang; Zhang, Hong; Wang, Tianling; Zhou, Yanbing; Song, Lei; Wang, Houzhi; Yang, Jun; Yang, Xu; Qie, Luchao

doi:10.1016/j.conbuildmat.2021.125347

Cited by 10 publications

(1 citation statement)

References 23 publications

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“…Te current stage of epoxy asphalt mixture grade composition design mainly uses continuous dense grade form, but in the process of use found that the use of the grading design of epoxy asphalt mixture antislip performance and fatigue resistance is poor [14,15]. To improve the road performance of epoxy asphalt mixtures, this paper uses the Course Aggregate Void Filling (CAVF) method, which has been proven to have good road performance, to design an epoxy asphalt mixture [14,16,17]. Te design grade of the mixture is shown in Figure 1.…”

Section: Grading Optionsmentioning

confidence: 99%

Ductile–Brittle Transition Temperature of Epoxy Asphalt Concrete of Steel Bridge Deck Pavement Based on Impact Toughness

Zhang

Nie

Sha

et al. 2023

Advances in Materials Science and Engineering

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To solve the common low-temperature cracking problem of epoxy asphalt concrete pavement on the steel bridge deck, based on the principle of fracture mechanics and energy method, this paper puts forward the impact toughness as the evaluation index of crack resistance of epoxy asphalt concrete and verifies the feasibility of this index through theoretical analysis and experiment. At the same time, based on the study of impact toughness, the ductile–brittle transition temperature of epoxy asphalt concrete was explored, and the working state of epoxy asphalt concrete at different temperatures was mastered. The results show that the impact toughness is closely related to the J integral, which can better evaluate the crack resistance of epoxy asphalt mixture. The Boltzmann function can accurately reflect the relationship between impact toughness and temperature and can determine the ductile–brittle transition temperature and transition interval of epoxy asphalt concrete. Impact toughness and ductile–brittle transition temperature can be used as the evaluation index of crack resistance of epoxy asphalt concrete, which provides a new design idea for the study of crack resistance of epoxy asphalt concrete and the scope of engineering application.

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