期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2020
卷号：498
期号：1
DOI：10.1088/1755-1315/498/1/012001
语种：English
出版社：IOP Publishing
摘要：The asphalt binder is modified using natural rubber (NR) based on cup lump to improve its performance and service life due to intense load and weather induced stress. A source of PG 60-70 asphalt was used for preparing a natural rubber modified asphalt, (NRMA). The rheological characteristics of the NRMA was analyzed using dynamic shear rheometer (DSR) according to Superpave test protocol. The presence of the NR also was investigated by thermogravimetric analysis (TGA) and Fouirier infra-red spectroscopy (FTIR). Results showed that the conventional properties of the base bitumen such as penetration, softening point, and temperature susceptibility improved with addition of NR. The DSR analysis exhibited that the presence of elastic NR within the bitumen network increases the viscosity, stiffness and reduces temperature susceptibility which consequently enhances the rutting property.
