Production of anti cracking stickers with a thickness of 2.0 millimeters to prevent reflective cracks on road surfaces. Self adhesive anti cracking stickers

Description :

　　Anti cracking adhesive performance and usage instructions

　　Crack resistant stickers (also known as crack resistant stickers or high-performance stress absorbing stickers) have self-adhesive properties, are easy to apply, and can be directly applied to crack areas. This structure is an organic and comprehensive application of several measures to prevent cracks on highways, which can prevent reflective cracks on the road surface.

　　Crack resistant adhesive tape is resistant to high and low temperatures, has strong composite performance, self-adhesive properties, and also has waterproof function. This structure is an organic combination of several crack prevention and waterproofing measures, such as geosynthetic materials and stress absorbing layer materials, which are currently used separately on highways. It is an optimized combination and upgraded product of interlayer crack prevention and waterproofing materials on highways.

　　1、 Main performance

　　1. Reinforced crack resistance. 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.

　　2. Waterproof and water-resistant. 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 suppress the upward propagation of cracks and play a role in crack resistance and energy absorption in practical engineering.

　　3. Energy dissipation buffer. 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.

　　2、 How to use anti crack stickers：

　　Firstly, surface treatment

　　1. Clear away dust, water, and other debris adhering to the surface, and keep the road surface dry and clean.

　　2. Clean the crack (joint) with a width between 5-19mm and fill it with sealant.

　　3. Clean the cracks (joints) and sunken areas with a width between 19-50mm, fill them with adhesive sand, sealant or asphalt mixture, and compact them to the existing height.

　　4. Cracks or potholes with a width exceeding 50mm should be cleaned first, and then filled with adhesive sand or hot asphalt mixture and compacted to the existing height.

　　5. For cracks (joints) and sunken areas with different heights, leveling treatment should be carried out.

　　6. Clean or level the protrusions on the bridge deck and road surface until they are smooth.

　　then Asphalt overlay

　　1. After the correct installation of anti cracking stickers, they should be closely integrated with the construction of the upper layer to avoid moisture and rain.

　　2. After laying the anti cracking sticker, emulsified asphalt and other adhesive oils can be spread according to the construction specifications of hot asphalt mixture. To prevent vehicles or pavers from sticking to the anti cracking sticker, some fine-grained crushed stones or mixtures can be sprinkled on top of the anti cracking sticker.

　　3. The thickness of hot asphalt mixture laid on the anti cracking patch should be greater than 40mm.

　　Precautions for using anti cracking stickers:

　　1. It should be used under conditions where the surface temperature is equal to or greater than 10 ℃.

　　2. If the surface temperature is below 10 ℃, it is recommended to use a warm fire to bake the anti crack adhesive tape, which should be flat, wrinkle free, and not have curled edges.

　　3. If there is overlap during the laying process, the overlap length is 50mm. It cannot exceed the overlap of two layers.

　　4. It is recommended to roll at least three times with a rubber roller after laying the polymer anti cracking adhesive.

　　5. After the laying is completed, vehicles can pass through. However, the interval between laying and the upper layer should not exceed 24 hours.

AfterSalesService :

• anti-cracking tape