Microstructure and Temperature Characterization of Compound Crumb Rubber Modified Asphalt

Abstract:

Compound Crumb Rubber Modified Asphalt (CCRMA) is a mixture of waste rubber tire powder, SBS modifier and asphalt in order to modify the characteristics of asphalt. The application of using crumb rubber powder in making CCRMA is important in improvement of working characteristics of asphalt as well as in pollution control and environment protection. CCRMA, crumb rubber particles, SBS modifier and base asphalt have been examined by Scanning Electron Microscope (SEM) to observe the microcosmic appearance and the characteristic distribution of crumb rubber particles and SBS modifier in asphalt. The rotary viscometer test and dynamic shear test of CCRMA were carried out by rotational viscometer and Dynamic Shear Rheology (DSR). The influences of rubber powder content and reaction time to viscosity of CCRMA have been studied. In the stage of current study, complex modulus and phase angle of CCRMA are parameters reflecting viscoelasticity, the relation between them and temperature are researched.

• Periodical: Advanced Materials Research (Volume 1052)
• Pages: 382-386
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1052.382
• Online since: October 2014
• Authors: Lan Wang, Jiang San Hu, Gang Chen
• Keywords: Compound Crumb Rubber Modified Asphalt, Microstructure, Temperature Characterization, Viscidity

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