The colored asphalt pavement is now covered with all the city roads. However, it is very troublesome to choose the color of the colored asphalt. It is necessary to choose a durable, bright color and strong coloring force, but many people do not know how to distinguish the colored asphalt. Good or bad. The pigments of colored asphalt are mainly divided into two categories: inorganic pigments and organic pigments.

Inorganic pigments are mainly compounds compounded by non-ferrous metals or some insoluble metal salts. This kind of colored asphalt has better lightfastness, abrasion resistance and hiding power than organic pigments.

Organic pigments have the advantages of low relative density, uniform chromatogram and bright color. Therefore, the cost of organic pigments is higher than that of inorganic pigments. Therefore, when selecting materials, they should be selected based on comprehensive performance and actual conditions.

When choosing colored asphalt, in addition to coloring power, hiding power, weather resistance, migration resistance, and abrasion resistance, attention should be paid to color, hue, saturation, and lightness, so that the selected colored asphalt is durable and practical.