Asphalt road crack prevention sticker price, road crack prevention sticker spot sales, road crack prevention sticker manufacturer

Description :

　　Construction method of road crack prevention stickers:

　　1、 Main performance of anti cracking stickers (anti cracking stickers)

　　1. Isolation effect. Laying anti cracking stickers (also known as 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 bond 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 (also known as 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 enhances the tensile strength of the pavement structure layer. 3. Energy dissipation buffering effect. Crack resistant stickers (also known as crack resistant stickers) are materials with certain extensibility. 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 sticker, 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 stickers (also known as anti cracking stickers) 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 suppress the upward propagation of cracks and play a role in crack resistance and energy absorption in practical engineering. Construction process of anti crack stickers: 1. Select the specifications of the anti crack stickers used according to the width of the road surface cracks (joints), and use at least 25cm anti crack stickers for cracks (joints) below 1mm-3mm; 2. For cracks (joints) with a width of 3mm to 5mm or less, use crack resistant stickers with a minimum of 33cm. 3. Clean the crack (joint) with a width between 5mm and 19mm, fill it with sealant, and then apply 50cm anti crack adhesive to the joint. 4. Clean the cracks (joints) and sunken areas with a width of 19mm, fill and compact them with adhesive sand, sealant or asphalt mixture to the existing height, and then use 100cm crack resistant adhesive tape to stick the joints. 5. Cracks or potholes with a width exceeding 50mm should be cleaned first, then filled with adhesive sand or hot asphalt mixture and compacted to the existing height, and then sealed with 100cm crack resistant adhesive tape. 6. For cracks (joints) and sunken areas with different heights, leveling treatment should be carried out. Attention: ⑴ Dry the cement concrete pavement before construction. Construction shall not be carried out on damp substrates or in rainy or snowy weather. ⑵ After construction, use sandbags or rubber tire rollers to compact the "crack prevention sticker" to prevent rainwater from entering the bonding surface of the "crack prevention sticker" before laying asphalt concrete. If it is expected to rain heavily before paving asphalt concrete, sealant should be used to seal both sides of the "crack prevention patch". Construction should not be carried out when the temperature is below 5 ℃. During the paving of asphalt concrete, vehicles are not allowed to roll or turn around on the "crack prevention sticker" on site. When the slope is greater than 5%, the width of the "crack prevention sticker" should not exceed 330mm. When laying the bottom layer of asphalt concrete, there may be a small amount of slippage, which should be repaired in a timely manner to avoid affecting the quality of the project.

　　The total thickness of asphalt concrete paving should not be less than 6cm.

　　⑺ When laying the "crack prevention sticker", if the height difference between adjacent edges is greater than 1cm or there are many potholes, the part should be leveled before laying to prevent the "crack prevention sticker" laid in the depression from being damaged by gravity. The leveling material can be epoxy mortar or asphalt mixture.

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