Evaluation of Regeneration Effects of Different Rejuvenators on Aged Asphalt

Buildings, Journal Year: 2025, Volume and Issue: 15(7), P. 1171 - 1171

Published: April 2, 2025

As a polymer-like organic material, asphalt often undergoes aging during service life. Regeneration technology is the main approach to achieve its recycling; therefore, rejuvenator an important factor affecting regeneration effect. In order evaluate rejuvenation effects of rejuvenators on aged asphalt, fluid catalytic cracking (FCC) slurry and penetrant containing epoxy functional groups were used prepare conventional (CR1 CR2) penetrable (PR). The impact physical properties was investigated, different mild severe evaluated through rheological tests. Results show that effectively lubricates movement molecules, improving high temperature stability resistance rejuvenator. CR1 CR2 are more suitable for as has relatively minimal effect chemical composition colloidal structure asphalt. At 25% dosage, PR significantly restores while still fail meet specifications. effective because it not only dissolves disperses asphaltenes but also weakens interactions between asphaltenes, which facilitates restoration enhances findings this study provide insights into design efficient utilization reclaimed pavement (RAP).

Language: Английский

Hybrid polyol-based polyurethane from pine merkusii resin and polyethylene glycol 400 for sustainable asphalt modification

South African Journal of Chemical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский