Pavement preventive maintenance is a periodic mandatory maintenance measure that is taken to restore the service function of the pavement surface when the structural strength of the pavement is sufficient and only the surface function is attenuated. A series of new preventive maintenance technologies such as ultra-viscous fiber-added low-noise micro-surfaces and synchronous gravel seals have been widely used on the main lines of national highways, and the construction results have been widely praised by customers.
The ultra-viscous fiber-added low-noise microsurface starts from the gradation of the microsurface and the modified emulsified asphalt as the main material. By reducing the structural depth of the microsurface and changing the distribution of coarse and fine materials on the surface of the microsurface, it reduces the traffic risk. Noise, while ensuring its anti-skid performance, effectively improving its adhesion, waterproofness, durability and crack resistance, which can solve the defects of ordinary micro-surfaces that are easy to fall off, excessive noise and reflective cracks.

Scope of application
◆ Pavement maintenance and preventive maintenance of expressways, trunk roads, municipal roads, etc.
Performance characteristics
◆ Effectively prevent reflection cracks;
◆ Reduces noise by about 20% compared with ordinary micro-surfacing;
◆ Construction at normal temperature, fast construction speed and reduced energy consumption;
◆ Good water sealing effect, effectively preventing road surface water from seeping down;
◆ Enhanced the adhesion between the cementing material and the aggregate, improved wear resistance and is not easy to fall off;
◆ The service life can reach 3 to 5 years.