Effect of dry-wet cycles on mechanical properties of polyurethane porous mixture

Wang, Yanqi; Sun, Quansheng; Leng, Songbai; Cui, Hongchuan; Xu, Bowen

doi:10.1080/10298436.2023.2212315

Cited by 6 publications

(1 citation statement)

References 40 publications

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“…In 2014, a study on the performance of PERS was conducted by Wang Huoming [5,6] et al They found that when the polyurethane content was 5%, the bending and tensile strength were excellent, and the high and low temperature strength were excellent, and when the polyurethane content was too high, the excess binder would fill the voids under the action of gravity, and the strength enhancement would not be greatly affected. Sun Mingxin [7] proposed that the existing calculation formula is not applicable, and the bonding characteristics of polyurethane material is obviously greater than that of asphalt, adopting residual stability, splitting strength ratio and flying loss as the assessment indexes of PERS mixed water stability.…”

Section: Introductionmentioning

confidence: 99%

Structural Optimization Analysis of Poroelastic Road Surface Based on Finite Element Technology

Zhao,

Du,

Guo

et al. 2023

Advances in Frontier Research on Engineering Structures

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Tire road noise is the main component of traffic noise. Therefore, it is of great significance to develop functional pavement which can reduce tire road noise. Poroelastic road surface (PERS) is one kind of high-efficiency noise reduction road structure. In this paper, with the help of finite element technology, the mechanical manners of PERS is simulated, and the flexibility, bending tensile stress/strain, shear stress/strain with different thickness structures were studied and evaluated. The mechanical control indicators of PERS were obtained, meanwhile the semi-flexible pavement structure thickness meeting the demands of pavement mechanics was improved. The conclusion shows that PERS structure can reduce the tensile stress at the foot of the surface layer and improve the driving comfort. It can be used in various structural layers of the highway.

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Section: Introductionmentioning

confidence: 99%