Repair process of self-adhesive pavement anti crack sticker:
In fact, there are, but in the process of road repair, if the overall road surface is repaired again, pedestrians will be unable to pass. The simpler method here is to repair local roads. The special use of road surface The special use of anti crack sticker is one of the commonly used materials for road surface repair. It is widely used in road repair. What is the reaction of the special use of anti crack sticker after it is applied to the road surface?
Special use of pavement, special use of road, anti crack sticker, coating, hot pavement asphalt When mixing, the high degree fabric will not deform at high temperature, and the high polymer will ooze out from the gap of the fabric after hot melting, which is very well bonded with it. There is enough polymer in the lower coating to fill the pits on the base surface after melting, which enhances the bonding force with the base surface. The stability of the lower coating and the tire base ensures the formation of a layer of composite interlayer with relatively uniform thickness, which meets the requirements of crack resistance and waterproof.
Because the anti crack sticker specially used for roads has strong tensile strength, especially in asphalt pavement, it can improve the transverse tensile strength of the pavement and resist large tensile stress without damage. Even if cracks occur in local areas（ expansion joint ）The stress concentration at the location will disappear through the transfer of polymer anti crack sticker, and the crack (expansion joint) will not develop to the surface layer and damage the pavement.
The road can be said to be the guarantee of our economy and travel. As long as the road is good, people's life can be guaranteed. Isn't there a saying that if we want to build roads before getting rich, it indirectly popularizes the importance of roads for us, and highlights the importance of special use of anti crack stickers for roads.
Construction process of anti crack sticker for self-adhesive road pavement:
The special use of crack resistant joint tape for roads can prevent the development of cracks, prevent rainwater from entering the pavement cracks and causing damage to the subgrade and pavement, extend the service life of the pavement, and reduce the maintenance investment. The tensile strength is high. The asphalt pavement joint strip is a roll type crack resistance waterproof membrane with a thickness of about 2-2.5mm, which is mainly used to deal with pavement cracks.
The main performance of crack resistant joint tape specially used for roads: isolation. The anti crack sticker is specially used for paving roads to separate the cracked layer from the asphalt surface layer, avoiding the direct contact between the cracked layer and the asphalt surface layer. The tensile stress of the base crack cannot be directly transferred to the asphalt concrete surface layer. Although the bonding force between the base layer and the surface layer is reduced, the anti crack sticker specially used for high polymer roads can make the upper and lower layers cohere well into a whole, The joint bearing of the vehicle load is enough to prevent the relative displacement of the interface up and down and keep continuous;
Reinforcement effect. The anti crack sticker used specially for roads has a certain strength and can bear a certain tensile stress of cracks. When the tensile stress of cracks increases and is greater than the tensile strength of the anti crack sticker used specially for roads, the anti crack sticker used specially for roads begins to deform, and then the layer begins to bear the tensile stress transmitted by the anti crack sticker used specially for roads.
The special use of crack resistant stickers for roads will bear all the tensile stress of cracks. Obviously, the special use of crack resistant stickers for roads plays a role of reinforcement. In this sense, it improves the tensile strength of the pavement structure layer; Energy dissipation and buffering effect.
In the process of road maintenance, the special use of crack resistant joint tape has been widely used in road maintenance based on its isolation, waterproof and crack resistance. It is precisely because these properties of the special use of crack resistant joint tape stabilize the position of the special use of crack resistant joint tape in road engineering.
Main performance of self-adhesive pavement anti crack sticker:
1. Isolation. The anti crack sticker is laid to isolate the cracked surface layer from the asphalt surface layer, avoiding the direct contact between the cracked surface layer and the asphalt surface layer. The tensile stress of the base crack can not be directly transferred to the asphalt concrete surface layer. Although the bonding force between the base layer and the surface layer is reduced, the polymer anti crack sticker can make the upper and lower layers cohere well and bear the vehicle load together, It is enough to prevent the relative displacement of the upper and lower layers of the interface and maintain continuity.
2. Reinforcement effect. The anti crack sticker has a certain strength and can bear a certain tensile stress of cracks. When the tensile stress of cracks increases and is greater than the tensile strength of the anti crack sticker, the anti crack sticker begins to deform, and then the surface layer begins to bear the tensile stress transmitted by the anti crack sticker. The anti crack bonding layer will bear all the tensile stress of the crack. Obviously, the anti crack bonding plays the role of reinforcement. In this sense, it improves the tensile strength of the pavement structure layer.
3. Energy dissipation and buffering effect. Anti crack sticker is a kind of material with certain extensibility. The polymer has good low-temperature flexibility. It is laid between asphalt pavement layers, which is equivalent to setting an elastic layer. The tensile stress of the base crack extends to a wider range through the anti crack sticker polymer, thus relieving the stress strength at the crack. The elastic layer
It can absorb part of the tensile energy.
4. Water resisting and anti-seepage function. The anti crack paste polymer can form a complete waterproof and anti-seepage layer, which can block the water seepage from the pavement to the subgrade, so as to protect the strength of the base course and prevent the properties of the base course materials from further deterioration. The anti crack sticker used in the asphalt pavement layer can effectively ease the upward transmission of cracks, and play the anti crack role and energy absorption role of the anti crack sticker in the actual project.
