Scrap tire crumb rubber modified asphalt

Moisture resistant

Synergistic particle and interaction effects enhance interfacial adhesion and reduce moisture sensitivity at the asphalt-aggregate interface.

Fusen, Zheng · Chen, Zixuan · Wentao, Hu · Hu, Dongliang · Shuxian, Zhang · Zhang, Jiupeng

Journal of Cleaner Production 2026

Specifications

mesh CR

{'zh': '10', 'en': '-15'} %

Advantages

Reduced moisture sensitivity

CR modification reduces interfacial moisture sensitivity, thereby mitigating moisture-induced interfacial disturbance.

Optimal content identified

60-mesh CR at 10%-15% content achieves an optimal balance between interaction effect enhancement and particle effect interference.

Dominant factor clarified

Grey relational analysis indicates that CR content acts as the dominant factor influencing interfacial adhesion, while particle size acts as a secondary, non-linear factor.

Applications

• Asphalt pavement materials：Use 6015 CRMA to replace conventional asphalt for improved moisture resistance in pavements.
• Road engineering：Guide the design and construction of high moisture-resistant asphalt mixtures.
• Scrap tire recycling：Upcycle scrap tire rubber into asphalt modifier, promoting cleaner production.
• Self-healing asphalt：Enhanced interfacial adhesion may contribute to self-healing of asphalt mixtures.