Effects of Gamma-Irradiated Recycled Low-Density Polyethylene on the Creep and Recovery Properties of Asphalt: Fid-Bau Portal

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Effects of Gamma-Irradiated Recycled Low-Density Polyethylene on the Creep and Recovery Properties of Asphalt

Wang, Wen-qi / Ding, Hai-bo / Wang, Ze

To improve the performance of recycled low-density polyethylene ( ${LDPE}_{R}$ ), this paper describes the polymer modification of bitumen with gamma-irradiated recycled low-density polyethylene ( $γ - {LDPE}_{R}$ ). The effects of the $γ - {LDPE}_{R}$ on bitumen were investigated by means of morphological and chemical analyses, including Fourier-transform infrared spectroscopy and multiple stress creep recovery (MSCR) test. The results showed that the surface of the ${LDPE}_{R}$ treated by gamma beam irradiation led to the formation of free radicals and some functional groups that may contribute to the creation of strong chemical bonds between the polymer modifier and bitumen, thus improving the compatibility of the modified asphalt. With the increased use of $γ - {LDPE}_{R}$ , the modified asphalt rutting resistance also increased. However, due to the high $γ - {LDPE}_{R}$ content of the modified asphalt, undertaking the high-temperature performance evaluation of the applicability of MSCR deserves further study.

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Effects of Gamma-Irradiated Recycled Low-Density Polyethylene on the Creep and Recovery Properties of Asphalt

Wang, Wen-qi / Ding, Hai-bo / Wang, Ze

To improve the performance of recycled low-density polyethylene ( ${LDPE}_{R}$ ), this paper describes the polymer modification of bitumen with gamma-irradiated recycled low-density polyethylene ( $γ - {LDPE}_{R}$ ). The effects of the $γ - {LDPE}_{R}$ on bitumen were investigated by means of morphological and chemical analyses, including Fourier-transform infrared spectroscopy and multiple stress creep recovery (MSCR) test. The results showed that the surface of the ${LDPE}_{R}$ treated by gamma beam irradiation led to the formation of free radicals and some functional groups that may contribute to the creation of strong chemical bonds between the polymer modifier and bitumen, thus improving the compatibility of the modified asphalt. With the increased use of $γ - {LDPE}_{R}$ , the modified asphalt rutting resistance also increased. However, due to the high $γ - {LDPE}_{R}$ content of the modified asphalt, undertaking the high-temperature performance evaluation of the applicability of MSCR deserves further study.

Effects of Gamma-Irradiated Recycled Low-Density Polyethylene on the Creep and Recovery Properties of Asphalt

Wang, Wen-qi / Ding, Hai-bo / Wang, Ze

To improve the performance of recycled low-density polyethylene ( ${LDPE}_{R}$ ), this paper describes the polymer modification of bitumen with gamma-irradiated recycled low-density polyethylene ( $γ - {LDPE}_{R}$ ). The effects of the $γ - {LDPE}_{R}$ on bitumen were investigated by means of morphological and chemical analyses, including Fourier-transform infrared spectroscopy and multiple stress creep recovery (MSCR) test. The results showed that the surface of the ${LDPE}_{R}$ treated by gamma beam irradiation led to the formation of free radicals and some functional groups that may contribute to the creation of strong chemical bonds between the polymer modifier and bitumen, thus improving the compatibility of the modified asphalt. With the increased use of $γ - {LDPE}_{R}$ , the modified asphalt rutting resistance also increased. However, due to the high $γ - {LDPE}_{R}$ content of the modified asphalt, undertaking the high-temperature performance evaluation of the applicability of MSCR deserves further study.

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Title:

Effects of Gamma-Irradiated Recycled Low-Density Polyethylene on the Creep and Recovery Properties of Asphalt

Contributors:

Wang, Wen-qi (author) / Ding, Hai-bo (author) / Wang, Ze (author)

Published in:

Journal of Highway and Transportation Research and Development (English Edition) ; 12 ; 13-18

Publication date:

2018-03-01

Size:

62018-01-01 pages

ISSN:

DOI:

https://doi.org/10.1061/JHTRCQ.0000605

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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