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Morphological and Rheological Assessment of Waste Plastic-Modified Asphalt-Rubber Binder
The major purpose of this study was to address the challenge of managing solid waste by assessing the compatibility of waste plastic-modified asphalt-rubber binders through rheological and morphological analyses. Blending operations incorporated varying proportions of crumb rubber (CR) and polyethylene terephthalate (PET) into the base asphalt binder covering six different compositions of CR and PET. Further, the effect of CR and PET waste on binder properties was assessed through fundamental binder consistency tests, which helped optimize the dosage of plastic-rubber combination in asphalt cement. Rheological tests encompassed Penetration, softening point, viscosity, and multiple stress creep recovery (MSCR), which assisted in investigating the viscosity-temperature susceptibility of the asphalt binders. Morphological assessments using high-resolution scanning electron microscopy in conjunction with energy-dispersive X-ray spectrum provided insights into the internal structure and interface bonding of CR, PET, and asphalt binder. Notably, blends with 10% CR and 5% PET exhibited enhanced rutting resistance and improved viscoelastic properties compared to the base binder. The MSCR test highlighted that the blends with higher CR and lower PET content contributed to improved viscoelastic properties. Conversely, the blend with higher PET and lower CR exhibited poor recovery at high strains, indicating lower resistance to rutting. The findings underscored the potential of specific CR-PET combinations in developing resilient and sustainable asphalt binders, emphasizing the need for further exploration in this domain.
Morphological and Rheological Assessment of Waste Plastic-Modified Asphalt-Rubber Binder
The major purpose of this study was to address the challenge of managing solid waste by assessing the compatibility of waste plastic-modified asphalt-rubber binders through rheological and morphological analyses. Blending operations incorporated varying proportions of crumb rubber (CR) and polyethylene terephthalate (PET) into the base asphalt binder covering six different compositions of CR and PET. Further, the effect of CR and PET waste on binder properties was assessed through fundamental binder consistency tests, which helped optimize the dosage of plastic-rubber combination in asphalt cement. Rheological tests encompassed Penetration, softening point, viscosity, and multiple stress creep recovery (MSCR), which assisted in investigating the viscosity-temperature susceptibility of the asphalt binders. Morphological assessments using high-resolution scanning electron microscopy in conjunction with energy-dispersive X-ray spectrum provided insights into the internal structure and interface bonding of CR, PET, and asphalt binder. Notably, blends with 10% CR and 5% PET exhibited enhanced rutting resistance and improved viscoelastic properties compared to the base binder. The MSCR test highlighted that the blends with higher CR and lower PET content contributed to improved viscoelastic properties. Conversely, the blend with higher PET and lower CR exhibited poor recovery at high strains, indicating lower resistance to rutting. The findings underscored the potential of specific CR-PET combinations in developing resilient and sustainable asphalt binders, emphasizing the need for further exploration in this domain.
Morphological and Rheological Assessment of Waste Plastic-Modified Asphalt-Rubber Binder
Lecture Notes in Civil Engineering
Pereira, Paulo (editor) / Pais, Jorge (editor) / Gopakumar, Neetu (author) / Biligiri, Krishna Prapoorna (author)
International Conference on Maintenance and Rehabilitation of Pavements ; 2024 ; Guimarães, Portugal
Proceedings of the 10th International Conference on Maintenance and Rehabilitation of Pavements ; Chapter: 39 ; 405-415
2024-07-21
11 pages
Article/Chapter (Book)
Electronic Resource
English
Rheological Properties of Rubber Modified Asphalt Binder in the UAE
Springer Verlag | 2022
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