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The anti crack sticker seen in the road is also called crack sticker. The anti crack sticker used for pavement cracks has always been a technical problem of road diseases, including two categories: reflection cracks caused by the base course and surface cracks caused by the surface course.
The anti crack sticker has solved the problem of cracking in road use, and has achieved the effect of long, beautiful and beautiful road. The crack shape of the surface layer is irregular, complex and changeable, which seriously affects the appearance and waterproof performance of the pavement. The anti crack sticker used for highways can be directly used on the road surface. It overcomes the disadvantages of slotting and filling cracks in the past, avoids secondary damage to the pavement, and is suitable for different Other highways Maintenance construction. The product is simple in construction, strong in adhesion, wide in working temperature range, long in service life and closed in cracks.
Anti crack sticker (also called crack sticker) is made of asphalt It is composed of a molecular polymer based on carbon dioxide, a stretcher base, and a warm fabric compatible with asphalt. The product is self-adhesive, convenient for construction, and can be directly pasted to the crack. This structure is a comprehensive application of several measures to prevent cracks on the highway.
We will explain the main properties of this material for road crack prevention and waterproofing summarized after the current road use of anti crack sticker:
1. Physical performance: anti crack sticker is a kind of active waterproof material with degree, elongation and cohesiveness. Its net thickness is more than 1.2 mm, which can improve the pavement crack waterproof performance.
2. Chemical property: The anti crack sticker is composed of a variety of molecular materials, with stable chemical property and * * * performance. It has * * * better chemical property than previous geotechnical materials.
3. Bonding performance: the anti crack sticker has a strong bonding ability and can be directly bonded with the clean base course.
4. High elasticity and strong deformation ability: the anti crack sticker has "self-healing" ability and strong deformation ability, and will not break or tear when the base crack moves up and down.
5. Pushing capacity: the anti crack sticker is laid at the crack with concentrated stress, and has strong elasticity. The aggregate of asphalt mixture will form a certain degree of inlay with the anti crack sticker, which is not easy to slide on the surface of the anti crack sticker, so it will not cause horizontal displacement.
6. Waterproof performance: anti crack sticker is mainly used for stress concentration and crack sealing at the crack to form a waterstop, which is usually used for road anti crack reinforcement Geogrid Not waterproof, Geotextile The function of the crack is also a surface, but the crack is not strengthened, forming a weak link in the crack, which is easy to cause damage, fracture, poor cohesiveness, water seepage and other phenomena.
7. Construction performance: the anti crack sticker is convenient for construction, and it can be heated in cold construction, and it can be fastened once pasted.
8. Temperature and low-temperature performance: the anti crack sticker is mainly composed of polymers, which has good low-temperature performance and certain thickness. It also forms a good bond with the base course. It can also play a cooling role when paving the surface course. Although the instantaneous temperature of asphalt mixture is relatively high during paving, the anti crack sticker will not be damaged.
