Effect of maleic anhydride grafted and gamma-irradiated waste polypropylene on rheological properties of asphalt binder
Küçük Resim Yok
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Waste polymers have been employed as a modifier in bitumen to improve the performance of the binders and reduce plastic pollution. Grafting of maleic anhydride (MA) is a method to increase the chemical and physical consistency between the polymer and binder. In this study, maleic anhydride grafted waste polypropylene was employed as a bitumen modifier. Gamma irradiation is applied to waste polypropylene to improve the compatibility. The effects of MA-grafted irradiated waste polypropylene (PPR-gamma-MA) on physical and rheological properties of bitumen were investigated through a test program. Storage stability tests signifies that the gamma irradiation could diminish the phase separation between the modifier and bitumen. The thermorheological tests showed employing PPR-gamma-MA improves the high temperature performance, whilst it has a slightly adverse effect on low temperature performance of bitumen. The results of multiple stress creep recovery (MSCR) test indicate that PPR-gamma-MA reduces the non-recoverable deformation and enhanced elastic recovery of the material, whereas the linear amplitude sweep (LAS) test result signifies PPR-gamma-MA improved the fatigue life of asphalt by increasing fatigue damage resistance under different strain levels. The rheological test results emphasised on the usability of PPR-gamma-MA as a modifier in binders.
Açıklama
Anahtar Kelimeler
Bitumen, waste polymer, grafting, gamma irradiation, rutting, fatigue life, Mechanical-Properties, Modified Bitumen, Polymer, Polyethylene, Temperature, Sbs, Microstructure, Performance, Stability, Emulsions
Kaynak
International Journal Of Pavement Engineering
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
23
Sayı
13
