A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rheological characteristics of crumb rubber-modified asphalts with long-term aging
SHRP asphalts AAD-1 (less-compatible) and ABD (more compatible) were mixed with crumb rubber and their rheological properties were studied as a function of long-term oxidative aging. Master curves were constructed by shifting the aging time-frequency data to assist in the interpretation. The results show that the stiffness effect of crumb rubber to asphalt AAD-1 is higher than to asphalt ABD. Addition of crumb rubber to both asphalts AAD-1 and ABD reduced viscosity build-up with aging. In addition, rubber modification dramatically increased the elasticity of both asphalts. It is possible that rubber modification will improve rutting resistance because of the increased viscosity and elasticity at high temperatures and improve thermal cracking and fatigue resistance by either decreasing viscosity or lowering viscosity build-up with aging at low temperatures.
Rheological characteristics of crumb rubber-modified asphalts with long-term aging
SHRP asphalts AAD-1 (less-compatible) and ABD (more compatible) were mixed with crumb rubber and their rheological properties were studied as a function of long-term oxidative aging. Master curves were constructed by shifting the aging time-frequency data to assist in the interpretation. The results show that the stiffness effect of crumb rubber to asphalt AAD-1 is higher than to asphalt ABD. Addition of crumb rubber to both asphalts AAD-1 and ABD reduced viscosity build-up with aging. In addition, rubber modification dramatically increased the elasticity of both asphalts. It is possible that rubber modification will improve rutting resistance because of the increased viscosity and elasticity at high temperatures and improve thermal cracking and fatigue resistance by either decreasing viscosity or lowering viscosity build-up with aging at low temperatures.
Rheological characteristics of crumb rubber-modified asphalts with long-term aging
Huang, Shin-Che (author)
Road Materials and Pavement Design ; 7 ; 37-56
2006-01-01
20 pages
Article (Journal)
Electronic Resource
Unknown
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