Carbon nanotubes for improving rheological and chemical properties of styrene–butadiene–styrene modified asphalt binder

Tang, Yujie; Fu, Zhen; Ma, Feng; Liu, Jun; Sun, Qiyu; Li, Chen

doi:10.1080/10298436.2023.2211212

Cited by 17 publications

(1 citation statement)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, C 9 PR has been extensively studied as an effective modifier to optimize the performance of polymer modified asphalt (PMA) [19]. The introduction of C 9 PR has been found to significantly enhance the overall performance of modified asphalt, including improved high-temperature rheological properties, enhanced low-temperature cracking resistance, and increased resistance to water damage [20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effect of C9 Petroleum Resin on Rheological Behavior, Microstructure, and Chemical Properties of Styrene–Butadiene–Styrene Modified Asphalt

Yan,

Zhang,

et al. 2024

Buildings

View full text Add to dashboard Cite

Understanding the modification mechanism of C9 petroleum resin (C9PR) on styrene–butadiene–styrene (SBS) polymer modified asphalt properties is of significant importance. In this paper, dynamic shear rheometer (DSR), storage stability, fluorescence morphology (FM), scanning electron microscope (SEM), Fourier transform-infrared (FTIR) spectrometer, and molecular dynamic (MD) simulation were adopted to evaluate the rheological, chemical, and microstructure molecular motion state of C9PR and SBS composite modified asphalt at different aging states. The DSR storage results indicate that the addition of C9PR could improve the high-temperature property, storage stability, and temperature susceptibility. FM and SEM results indicate that the network microstructure was enhanced and the roughness between polymer resins and virgin asphalt was improved at the microscopic scale. The MD results indicate that the heterogeneity between C9PR and SBS modified asphalt was demonstrated, and the bonding energies were enhanced with the addition of C9PR. Moreover, the FTIR results indicate that new function groups were generated in addition to C9PR. In general, the addition of C9PR is a good approach to promote high-quality polymer modified asphalt (PMA) for pavement engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the Effect of C9 Petroleum Resin on Rheological Behavior, Microstructure, and Chemical Properties of Styrene–Butadiene–Styrene Modified Asphalt

Yan,

Zhang,

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

Insight into the diffusion behaviors of SBS‐compatibilizer‐coupled modified asphalt: Molecular dynamics simulation and experimental validation

Dong,

Lu,

et al. 2024

Vinyl Additive Technology

View full text Add to dashboard Cite

Compatibilizers play a crucial role in enhancing the compatibility between styrene–butadiene–styrene (SBS) polymer and asphalt, and the coupling of compatibilizers with SBS affects the motion behavior of asphalt molecules, which influences the performance of SBS modified asphalt. In this investigation, molecular dynamics simulation is employed to evaluate the impact of SBS coupling with compatibilizers on alterations in the self‐motion behavior of asphalt molecules, changes in relative free volume, and modifications in system energy. The findings reveal that with the introduction of a compatibilizer, the combined effect of the compatibilizer and SBS coupling amplifies the mobility of the constituents within the modified asphalt. This amplification manifests as increased relative free volume within the system, heightened activation of modified asphalt molecules, and a simultaneous reduction in the interaction energy among these molecules. Following that, the high‐temperature rheological properties of SBS modified asphalt were verified with the simulation results, coupled with temperature scanning experiments. This study describes the intrinsic mechanism of interaction of compatibilizers in SBS modified asphalt at the molecular scale.Highlights Molecular dynamics simulations and experimental validation were implemented for styrene–butadiene–styrene (SBS)‐modified asphalt. Compatibilizers can activate the activity of SBS modified asphalt. Compatibilizers allow a better release of the properties of the bitumen and SBS. Compatibilizers can replace bitumen and act with SBS to improve its modification efficiency. The optimum dosage of compatibilizer is 3%.

show abstract

Damage on asphalt surfaces caused by ionic solution erosion and salt crystallization at molecular scale

Tang,

Fu,

Zhao

et al. 2024

Applied Surface Science

View full text Add to dashboard Cite

Carbon nanotubes for improving rheological and chemical properties of styrene–butadiene–styrene modified asphalt binder

Cited by 17 publications

References 57 publications

Evaluation of the Effect of C9 Petroleum Resin on Rheological Behavior, Microstructure, and Chemical Properties of Styrene–Butadiene–Styrene Modified Asphalt

Evaluation of the Effect of C9 Petroleum Resin on Rheological Behavior, Microstructure, and Chemical Properties of Styrene–Butadiene–Styrene Modified Asphalt

Insight into the diffusion behaviors of SBS‐compatibilizer‐coupled modified asphalt: Molecular dynamics simulation and experimental validation

Damage on asphalt surfaces caused by ionic solution erosion and salt crystallization at molecular scale

Contact Info

Product

Resources

About