As China's economic strength continues to develop, the highway is also rapidly developing. The burden on the road surface of a large number of high-speed vehicles, especially large-scale heavy-duty vehicles, is self-evident. The surface functions of roads have been lost in many areas, and the road surface quality and service capacity have been declining year by year. The overburdened road surface has this maintenance technology. Never worry about it again. This maintenance technology is the use of fine anti-slip protection.
This technology is compared with the traditional thin-layer overlay technology, and at the same time, it analyzes the functional requirements of the road surface and conducts targeted research before it is used for highway maintenance. The entire construction process sprinkled 0.1~0.2kg/m2 emulsified asphalt as a stable protective layer, the effect is better than before, forming a new type of fine anti-slip protective layer with sealing, anti-slip, wear-resistant and stable. This new type of pavement preventive maintenance technology uses small-grained crushed stone to spread the modified emulsified asphalt on the seal with high gravel coverage to stabilize the ultra-thin wear layer of crushed stone, which can be mainly used on the road surface. It has played a role in improving the anti-sliding performance of the pavement and waterproof and crack resistance, and provides a waterproof anti-slip protective layer for the road surface. In addition, it can also inhibit or delay the further development of the asphalt pavement disease.
Compared with the past, the single-grain crushed stone in the fine anti-slip protection layer has very good anti-sliding property, which can avoid the predicament of the vehicles on the road because of the rainy days and reduce the safety hazards. In addition, the construction of ultra-thin seals on the basis of gravel seals is quick and cost-effective. This undoubtedly improves the efficiency of road maintenance and saves maintenance costs. The fine anti-slip protective layer of gravel will not come off earlier and its service life will be longer than before. This technology has a small crushed stone size, saves a large amount of asphalt and aggregate, and saves 52%~81% of cost on the premise of ensuring the same life span, reducing the maintenance costs of roads, and at the same time low carbon Environmental protection has reduced the dust on roads and solved the problem that traditional gravel seals cannot be used on highways because of large noise and flying rocks.
The maintenance of roads has continued to have new technical support. The fine anti-slip protection layer was developed on the basis of the traditional gravel seal. The use of this technology will better preserve the road.
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