The continuous swelling-degradation behaviors and chemo-rheological properties of waste crumb rubber modified bitumen considering the effect of rubber size

The chemo-rheological properties of crumb rubber modified bitumen are always unstable due to the mutable and uncontrollable swelling-degradation degree in matrix. study aimed at exploring continuous swelling degradation behaviors (CRMB) considering influence size through monitoring dynamic viscosity changes CRMB binders. Moreover, synergistic effects on chemical rheological were investigated. results revealed that significantly influenced CRMB. reduction shortened equilibrium time, while increased related dramatically. during process, decrease could accelerate rate, increase maximum reduce time Meanwhile, high large beneficial enhance temperature properties, binder with showed better low-temperature property, workability wider Newtonian flow region. Furthermore, promoted formation free hydroxide groups, aldehydes, carboxylic acids esters, process average molecular weight whole liquid phase binder. outputs from this fundamental provide guidance preparation conditions optimization binders different viscous property standards.