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Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
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Influence Of Guayule Resin As A Bio-Based Additive On Asphalt-Rubber Binder At Elevated Temperatures, Ahmed Hemida, Magdy Abdelrahman
Influence Of Guayule Resin As A Bio-Based Additive On Asphalt-Rubber Binder At Elevated Temperatures, Ahmed Hemida, Magdy Abdelrahman
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
This study seeks to find the influence of replacing a portion of the asphalt–rubber binder with the bio-based material “guayule resin.” This replacement could be beneficial in terms of sustainability, economics, and environmental concerns related to the asphalt industry. Nine asphalt-rubber-guayule binders were investigated to find their rheological properties. Consecutively, the study proceeded with five selected binders being compared to the original asphalt (PG64-22). Investigations underwent whole matrices (crumb rubber modifier (CRM) residue included) and liquid phases (CRM residue extracted). Additionally, these properties were partially sought for their corresponding asphalt–rubber binders to compare and judge the contribution of the guayule …
Balancing The Performance And Environmental Concerns Of Used Motor Oil As Rejuvenator In Asphalt Mixes, Eslam Deef-Allah, Magdy Abdelrahman, Mark W. Fitch, Mohyeldin Ragab, Mousumi Bose, Xiaolong He
Balancing The Performance And Environmental Concerns Of Used Motor Oil As Rejuvenator In Asphalt Mixes, Eslam Deef-Allah, Magdy Abdelrahman, Mark W. Fitch, Mohyeldin Ragab, Mousumi Bose, Xiaolong He
Civil, Architectural and Environmental Engineering Faculty Research & Creative Works
Road deterioration inspires researchers to enhance the properties of asphalt binder for better performing mixes. Recycled tire rubber, or crumb rubber modifier (CRM), and used motor oil (UMO) are two modifiers that enhance asphalt binder performance through two different mechanisms. CRM affects high-temperature properties while UMO modifies low-temperature properties. Potential environmental concerns arising from the use of UMO have been raised in the literature. In this paper, the two recycled materials were investigated for their ability to complement each other. Both performance benefits of using both materials and the environmental concerns of using UMO were studied. Four CRM asphalt binders …