Can I read Rejuvenation effect of aged SBS-modified asphalt utilizing molecule analysis on EtoBox?

Rejuvenation effect of aged SBS-modified asphalt utilizing molecule analysis by Ke Shi; Feng Ma; Jenny Liu; Zhen Fu; Ruimeng Song; Dongdong Yuan; Chen Li is a Environmental Science article available to read on EtoBox.

What is Rejuvenation effect of aged SBS-modified asphalt utilizing molecule analysis about?

The performance of styrene-butadiene-styrene modified asphalt (SBSMA) is significantly impacted by its aging and regeneration. In this research, the molecular dynamics simulation was utilized to investigate the rejuvenation effect of active reagents on aged SBS modified asphalt through the following tasks: 1) verifying the accuracy of the asphalt model by density and solubility parameters; 2) assessing the changes in the rejuvenated asphalt model's energetic parameters and volume parameters, 3) studying the interaction energy between SBS molecules and asphalt molecule models, and 4) evaluating the relative concentration, interfacial interaction energy, and diffusion effect of the asphalt-asphalt models. The results indicated that the restored broken SBS molecule substantially impacted the functionality of the rejuvenated asphalt binder. For Methylene-bis(4-cyclohexylisocyanate) (HMDI) and 1,6-Hexanediol Diglycidyl Ether (HDE) rejuvenated asphalts, the non-bond energy decreased gradually with the repair of broken SBS molecular structures. The free volume fraction of rejuvenated binders was lower than that of SBSMA, indicating that the compactness and packing degree of the rejuvenate

Who reads Rejuvenation effect of aged SBS-modified asphalt utilizing molecule analysis?

Author

Ke Shi; Feng Ma; Jenny Liu; Zhen Fu; Ruimeng Song; Dongdong Yuan; Chen Li

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)