How to conserve colored asphalt pavement

As a kind of colored pavement pavement technology, in order to create the atmosphere of traffic times, the colored asphalt pavement has been used more and more in landscape, municipal design and highway design. The colorful asphalt pavement has been more and more popular in our country, mainly used in the highway pavement. However, in the complex traffic environment, the colored pavement paved with asphalt mixture as the base material will gradually age, not only will appear, the color gradually darkens, the adhesive viscosity decreases, the road surface will also encounter decolorization, potholes, cracking and loose.

If the color asphalt construction quality is not good at that time, the gap is large, it will cause early damage to the road surface, if not treated in time, it will end the service life of the color asphalt road surface in advance. So how to maintain color asphalt pavement?

1.Preventive maintenance of colored asphalt pavement

Color asphalt pavement has a few cracks in the range of 75-95 PCI (road condition index). In order to prevent water penetration and crack diffusion, some simple sealing measures can be used to maintain good road condition. When the color asphalt road condition index is in the range of 60-75, it is the best period for preventive maintenance. The general way is to choose to terminate the sealing measures to slow down the degradation of asphalt mixture and extend the service life of the road.

2. Maintenance of colored asphalt pavement

When the road condition index is below 60, it indicates that the surface of the road has been damaged and cannot be improved by road surface maintenance measures. The necessary crack sealing and pothole repair can be used as emergency measures to maintain the usable condition of the road. When the traffic index is below 50. The pavement has been badly damaged and needs to be resurfaced with coloured asphalt. Through effective sealing can greatly reduce the road potholes and cracks, through effective sealing means, a repair and maintenance of color asphalt pavement.

3. Repair the pavement on the basis of spraying color anti-skid pavement

Color asphalt pavement is only a construction form of color pavement, can be paved on the basis of the original asphalt pavement MMA color anti-skid pavement. Because of MMA excellent thin layer pavement performance, and after the completion of excellent durability, strong bond with the substrate, low temperature can still be rapid construction and so on, with color anti-skid pavement layer to protect the characteristics of the road, is also the first choice for many color pavement pavement projects.