Discussions on Materials Selection and Design of Colored Hot-mix Asphalt Mixture

摘要

Firstly, based on contrast to the merits of conventional asphalt, natural colored asphalt, bitumen thermoset and thermoplastic light colored asphalt, the paper proposed the base asphalt selection method. Then on the basis of comparison of the performance of organic pigments and inorganic pigments of paint, the pigmentselection method was identified. Thirdly, the paper compared the color characteristics of different types of stone and provided some recommendations on aggregate selection. Finally, the paper briefly introduced the design method and technical requirement of colored hot-mix asphalt material.