What are the advantages of making colored asphalt?

1) has good road performance. Under different temperatures and external environment, it has good high-temperature stability, water damage resistance and durability, no deformation, asphalt film peeling and other phenomena, and good adhesion with the base.

2) Bright and durable color, colorfast, resistant to high temperature of 77℃ and low temperature of -23℃, and easy to maintain.

3) It has a strong sound absorption function. When the automobile tire rolls at high speed on the highway, it will not produce strong noise due to air compression, and it can also absorb other noises from the outside.

4) Good elasticity and flexibility, good "foot feeling", most suitable for the elderly to walk, and anti-skid in winter. In addition, the color mainly comes from the color of stone itself, which will not cause great harm to the surrounding environment.

2. Disadvantages:

1) It is not easy to find light-colored stones as aggregates, and the overall effect of the pavement will be affected if the color is too deep.

2) The unit price is more expensive than ordinary pavement.

3) The color of asphalt mixture is difficult to control. Once the control is not good, it is easy to appear color difference.

4) Colored pavement needs more cleaning and washing to show beautiful effect.