Anti Crack Paste
Anti crack paste is a roll type Bai crack resistant waterproof membrane The self-adhesive interlayer crack resistant and waterproof materials are the optimized combination and upgrading products of the current highway interlayer crack resistance and waterproof materials.
Isolation. Laying anti-cracking stickers (also called anti-cracking stickers) isolates the cracked surface layer from the asphalt surface layer, avoiding direct contact between the cracked layer and the asphalt surface layer, and the tensile stress of the cracks in the base layer 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 polymer anti-cracking paste can make the upper and lower layers adhere well as a whole, and jointly bear the load of the vehicle, which is sufficient to prevent the relative displacement of the upper and lower layers of the interface and maintain continuity.
2. Reinforcing effect. The anti-cracking sticker (also known as the anti-cracking sticker) has a certain strength and can withstand a certain crack tensile stress. When the crack tensile stress increases and is greater than the tensile strength of the anti-cracking sticker, the anti-cracking sticker begins to deform, and the surface layer Only then began to bear the tensile stress transmitted from the anti-cracking paste. The anti-cracking layer will withstand all the stress of the crack Obviously, the anti-cracking paste acts as a reinforcement. In this sense, it improves the tensile strength of the pavement structure layer.
3. Energy dissipation and buffering effect. Anti-cracking paste (also known as anti-cracking paste) is a material with a certain degree of extensibility. The polymer has good low-temperature flexibility. It is laid between the asphalt pavement layers, which is equivalent to setting an elastic layer. The tensile stress of the base layer cracks through the resistance The cleavage polymer expands to a wider range, thereby alleviating the stress intensity at the cracks, and the elastic interlayer can absorb part of the tensile energy.
Placing the anti-cracking paste on the asphalt concrete surface that produces cracks or peeling can reduce and block the temperature shrinkage stress acting on the pavement, so it also reduces the tendency of cracks to reflect through the surface layer. The upper wear layer is isolated to protect the upper layer from multi-directional displacement and shear stress. It is used for highways, bridges, airports, etc.
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