Reactive Rejuvenated SBS-Modified Bitumen

Enhanced high-temperature performance

Addresses limitations of HMDI/AO-rejuvenated bitumen by additives, improving high-temperature performance and fatigue life.

Xing, Chengwei · Zhi, Chen · Bohan, Zhu · Ma, Qingwei · Vasilev, Y. · Haozongyang, Li · Cheng, Huailei · Zhang, Hengji

Polymer 2026

Specifications

Non-recoverable creep compliance (Jnr)

{'zh': '74', 'en': '74'} %

Ductility improvement

{'zh': '39', 'en': '39'} %

Fatigue life improvement

{'zh': '59', 'en': '59'} %

Advantages

Fatigue life surpasses baseline

Organo-montmorillonite, through physical modification, increases the fatigue life of 0.24M-RSMB by 59% compared to 0.08M-RSMB.

Drastic cut in creep deformation

PP-g-MA reduces Jnr by 74% at 3.2 kPa and 76°C, markedly enhancing high-temperature deformation resistance.

Low-temperature ductility not compromised

PP-g-MA improves ductility by 39% while enhancing high-temperature performance, improving low-temperature crack resistance.

Applications

• Pavement materials：Additives at low dosage improve rutting resistance and fatigue life of recycled asphalt, extending pavement service life.
• Road maintenance：Rejuvenates aged asphalt in pavement repair, restoring viscoelastic properties and reducing maintenance frequency.
• Asphalt rejuvenation：Blending additives into HMDI/AO rejuvenator compensates for fatigue and low-temperature weaknesses, broadening applicability.