Investigation on the performance of colored asphalt and pavement

Abstract

Colored asphalt pavement is essential to beautify the city and manage the traffic. Colored asphalt was prepared by mixing aromatic oil, petroleum resin and styrene-butadiene-styrene block copolymer (SBS). The effect of aromatic oil, petroleum resin and SBS on the performance of colored asphalt was investigated. The results showed that aromatic oil help improve the low-temperature properties, resin can enhance the high-temperature properties, and SBS strengthen both high and low temperature performances. Qualified 70# colored asphalt was prepared by optimizing the formulation. The properties of colored asphalt mixtures indicated that the mixtures had superior rutting resistance and water stability, while low-temperature cracking resistance is inferior.