What is the cold joint filler for asphalt pavement?

It is mainly used for timely pouring and repairing cracks on asphalt pavement, and can also be used for repairing cracks on cement concrete pavement and filling expansion joints. Compared with traditional hot asphalt pouring, it has many advantages, such as no need for heating and opening, fast construction speed, fast open traffic, strong environmental protection and low maintenance cost. During construction, there is no need for complicated construction machinery, opening and heating, and cracks can be poured after cleaning; After the construction, the surface can be dried within 30 minutes, and the traffic can be opened within two hours. After grouting is completed, fine sand can be sprinkled on the surface to open the traffic immediately. Adhesion will not be lost due to material aging, and will not be separated from the seam wall due to crack changes; After solidification, the extension length can reach 8 times, and it can be longer when the crack becomes larger, which greatly reduces the probability of secondary cracking. At the same time, it has strong toughness, which can effectively support the crack wall, prevent edge biting and wall collapse, and thus prevent the expansion and spread of cracks.

Conformity: the material is a flowable liquid, which can be poured to the bottom of the crack to the maximum extent, especially in the penetration area through the crack, which can effectively block the diffusion of water inside; The curing mode of "fast outside and slow inside" is a unique technological breakthrough of this material. After the surface is quickly dried and opened to traffic, the interior is slowly solidified, and it retains certain plasticity when the cracks change, which can make the joint filler and cracks more flexible. Adaptability: Cold joint sealant for asphalt pavement can be constructed at -60℃-+60℃, which is not limited by climate, hydrology and seasonal conditions, and can protect asphalt pavement at any time all year round; It can also avoid the pollution of smoke and pungent smell when the traditional process heats asphalt, and is suitable for the requirements of municipal construction on environmental protection.