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- W3215422762 endingPage "125688" @default.
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- W3215422762 abstract "Waste low-density polyethylene (LDPE) and ethylene–vinyl acetate (EVA) are two materials with low recyclability and slow degradation in the environment, which causes extreme pollution to the environment. In the pavement engineering field, natural resources depletion has always been a matter of controversy. Thus, applying recycled LDPE and EVA to asphalt modification is an efficient approach to relieve environmental pollution and decreasing demand for natural resources. This research aims to determine the optimal preparation process of LDPE/EVA modified asphalt, and the effect of LDPE and EVA on the high-temperature rheological properties of asphalt was also investigated. Conventional physical properties tests of LDPE/EVA modified asphalt are conducted to determine the process parameters. In addition, viscosity, temperature sweep, and multiple stress creep and recovery (MSCR) were utilized to evaluate the rheological properties at high-temperature range. Furthermore, fluorescence microscopy (FM) was utilized to evaluate the modification mechanism. The test result indicated that shearing time in the preparation process was the foremost factor affecting the properties. LDPE/EVA modified asphalt exhibited optimal properties when prepared at 3500 rpm for 60 min at 180℃. Both LDPE and EVA have positive effects on high-temperature performance and the ability to resist permanent deformation of asphalt, and also increase the anti-temperature variety properties. It is because of that EVA could improve the compatibility between LDPE and asphalt significantly, which is beneficial for broad the application of waste plastic in pavement engineering. Generally, the results showed LDPE and EVA compound modified asphalt performing well, which is an eco-friendly material for pavement engineering." @default.
- W3215422762 created "2021-12-06" @default.
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- W3215422762 date "2022-01-01" @default.
- W3215422762 modified "2023-10-16" @default.
- W3215422762 title "Low-density polyethylene/ethylene–vinyl acetate compound modified asphalt: Optimal preparation process and high-temperature rheological properties" @default.
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- W3215422762 doi "https://doi.org/10.1016/j.conbuildmat.2021.125688" @default.
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