Hunan crack resistant sticker Changsha selected crack resistant sticker manufacturers

Description :

　　Crack resistant tape (also known as crack resistant tape) is a composite of asphalt based polymer, tensile tire base, high temperature resistant and asphalt compatible fabric. Applying it to the asphalt concrete surface that produces cracks or peeling can reduce and block the thermal shrinkage stress acting on the road surface, thus reducing the tendency of cracks to reflect through the surface layer. Laying it on the road surface isolates the base layer from the upper wear layer, thereby protecting the upper layer from multi-directional displacement and shear stress. It is used in highways, bridges, airports, etc.

　　1. Isolation effect. Laying anti cracking stickers isolates the cracked surface layer from the asphalt surface layer, avoiding direct contact between the cracked surface layer and the asphalt surface layer. The tensile stress of the base layer cracks cannot be directly transmitted to the asphalt concrete surface layer. Although it reduces the bonding force between the base layer and the surface layer, the high polymer anti cracking stickers can effectively bond the upper and lower layers into a whole and jointly bear the vehicle load, which is sufficient to prevent relative displacement of the interface between the upper and lower layers and maintain continuity.

　　2. Reinforcement effect. Crack resistant stickers have a certain strength and can withstand a certain amount of crack tensile stress. When the crack tensile stress increases and exceeds the tensile strength of the crack resistant sticker, the crack resistant sticker begins to deform, and the surface layer begins to bear the tensile stress transmitted by the crack resistant sticker. The anti crack layer will bear all the tensile stress of the crack, and obviously the anti crack layer plays a reinforcing role. In this sense, it improves the tensile strength of the pavement structure layer.

　　3. Energy dissipation buffering effect. Crack resistant adhesive tape is a material with certain extensibility, and high polymers have good low-temperature flexibility. When laid between asphalt pavement layers, it is equivalent to setting up an elastic layer. The tensile stress of the base crack is extended to a wider range through the high polymer of the crack resistant adhesive tape, thereby relieving the stress intensity at the crack. The elastic interlayer can absorb some of the tensile energy.

　　4. Waterproof and anti-seepage function. Anti cracking adhesive polymer can form a complete waterproof and anti-seepage layer, which can block the infiltration of road water into the roadbed, thereby protecting the strength of the base layer and preventing further deterioration of the properties of the base material. Anti cracking stickers used in asphalt pavement layers can effectively suppress the upward propagation of cracks, and play a role in crack resistance and absorption in practical engineering.

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