A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigating the Optimum Modifier Dosage and Production Temperature for Plastic-Modified Warm Bituminous Mixes
https://orcid.org/http://orcid.org/0000-0003-1693-1777
https://orcid.org/http://orcid.org/0000-0002-6124-1428
Plastic roads are gaining popularity in India due to their superior performance over conventional roads. However, they are associated with higher production temperatures. To make it sustainable, it must be produced at lower temperatures. The current study aims to reduce the production temperatures of plastic-modified bitumen (PMB) mixtures by developing a protocol to introduce warm mix modifiers into PMB. Two waste plastics, low-density polyethylene (LDPE) and polypropylene (PP) were employed for plastic modification of virgin bitumen. Whereas, polyethylene waxes (PEW) and waste-cooking oil (WCO), were chosen as warm mix modifiers. The Fourier transform infrared (FTIR) spectroscopy test was carried out to study the mechanism of binder modification. The production temperatures were determined using the binder’s viscosity-temperature relationship, and the results were validated with conventional strength and durability tests for bituminous mixes such as Marshall stability, flow, tensile strength, moisture susceptibility, and rutting deformation. According to the findings of this study, incorporating a warm mix modifier content of 0.93%–3.25% (for PEW) and 0.82%–2.83% (for WCO) by weight of bitumen, can result in a 7–24 °C reduction in mixing temperature and a 5–31 °C reduction in compaction temperature, while maintaining the mixture properties within specified limits for modified bituminous mixtures.
Investigating the Optimum Modifier Dosage and Production Temperature for Plastic-Modified Warm Bituminous Mixes
https://orcid.org/http://orcid.org/0000-0003-1693-1777
https://orcid.org/http://orcid.org/0000-0002-6124-1428
Plastic roads are gaining popularity in India due to their superior performance over conventional roads. However, they are associated with higher production temperatures. To make it sustainable, it must be produced at lower temperatures. The current study aims to reduce the production temperatures of plastic-modified bitumen (PMB) mixtures by developing a protocol to introduce warm mix modifiers into PMB. Two waste plastics, low-density polyethylene (LDPE) and polypropylene (PP) were employed for plastic modification of virgin bitumen. Whereas, polyethylene waxes (PEW) and waste-cooking oil (WCO), were chosen as warm mix modifiers. The Fourier transform infrared (FTIR) spectroscopy test was carried out to study the mechanism of binder modification. The production temperatures were determined using the binder’s viscosity-temperature relationship, and the results were validated with conventional strength and durability tests for bituminous mixes such as Marshall stability, flow, tensile strength, moisture susceptibility, and rutting deformation. According to the findings of this study, incorporating a warm mix modifier content of 0.93%–3.25% (for PEW) and 0.82%–2.83% (for WCO) by weight of bitumen, can result in a 7–24 °C reduction in mixing temperature and a 5–31 °C reduction in compaction temperature, while maintaining the mixture properties within specified limits for modified bituminous mixtures.
Investigating the Optimum Modifier Dosage and Production Temperature for Plastic-Modified Warm Bituminous Mixes
https://orcid.org/http://orcid.org/0000-0003-1693-1777
https://orcid.org/http://orcid.org/0000-0002-6124-1428
Plastic roads are gaining popularity in India due to their superior performance over conventional roads. However, they are associated with higher production temperatures. To make it sustainable, it must be produced at lower temperatures. The current study aims to reduce the production temperatures of plastic-modified bitumen (PMB) mixtures by developing a protocol to introduce warm mix modifiers into PMB. Two waste plastics, low-density polyethylene (LDPE) and polypropylene (PP) were employed for plastic modification of virgin bitumen. Whereas, polyethylene waxes (PEW) and waste-cooking oil (WCO), were chosen as warm mix modifiers. The Fourier transform infrared (FTIR) spectroscopy test was carried out to study the mechanism of binder modification. The production temperatures were determined using the binder’s viscosity-temperature relationship, and the results were validated with conventional strength and durability tests for bituminous mixes such as Marshall stability, flow, tensile strength, moisture susceptibility, and rutting deformation. According to the findings of this study, incorporating a warm mix modifier content of 0.93%–3.25% (for PEW) and 0.82%–2.83% (for WCO) by weight of bitumen, can result in a 7–24 °C reduction in mixing temperature and a 5–31 °C reduction in compaction temperature, while maintaining the mixture properties within specified limits for modified bituminous mixtures.
Investigating the Optimum Modifier Dosage and Production Temperature for Plastic-Modified Warm Bituminous Mixes
Int. J. Pavement Res. Technol.
Prakash, Gautam (author) / Suman, Sanjeev Kumar (author)
2025-01-01
24 pages
Article (Journal)
Electronic Resource
English
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