Characterization of bitumen modified with pyrolytic carbon black from scrap tires
H. Wang (TU Delft - Pavement Engineering)
Guoyang Lu (RWTH Aachen University)
Shuyin Feng (University of Bristol)
Xiaobo Wen (JSTI Group)
Jun Yang (Southeast University)
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Abstract
Pyrolytic carbon black (CB
p
) from scrap tire pyrolysis is a potential modifier for the bitumen industry. Binders containing different contents of CB
p
were prepared and experimentally investigated to examine the effects of CB
p
on the electrical and thermal conductivity, conventional physical properties, rheological properties, high-temperature antirutting performance, aging resistance, and storage stability. Laboratory test results indicated that the incorporation of CB
p
effectively improves the electrothermal properties, rheological properties, high-temperature rutting resistance, and aging resistance. It also increases the viscosity and decreases the storage stability of bitumen. The study confirms that CB
p
-modified bitumen with proper selection of content can be a multifunctional paving material.
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