Sichuan crack prevention sticker crack prevention sticker asphalt pavement crack prevention sticker specifications are complete

Description :

　　Crack resistant adhesive tape (also known as crack resistant adhesive tape) is a composite of asphalt 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. When laid on the road surface, it 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. As a new type of high-tech cutting-edge product, anti cracking stickers are increasingly recognized by customers, especially in the southern region. The usage of this product has been increasing year by year. Due to its anti cracking effect and simple and convenient construction, more and more manufacturers are also targeting business opportunities and launching production. As a result, a series of anti cracking stickers with uneven appearance quality have appeared on the market. Some manufacturers compete for the market by reducing costs and prices, causing great losses to customers. Our company strictly controls the quality of anti cracking stickers, takes honesty as the foundation, achieves good quality, low profit, and factory price sales, resolutely does not make black money, so that customers have no worries. The reinforcement of old concrete pavement often involves adding a layer of asphalt overlay on the original pavement. When the tensile stress generated by the displacement of concrete exceeds the tensile strength of the asphalt overlay, the overlay will crack, which is called a reflection crack. Main reasons: On the one hand, during the process of forming the base layer, regular transverse cracks are formed due to the dehydration and shrinkage of the base material; On the one hand, the base material undergoes low-temperature shrinkage cracking due to a sudden drop in temperature. In the process of designing the combination of flexible pavement structures, when laying the surface layer on the semi-rigid base, the surface layer should be appropriately thickened or anti cracking stickers should be laid to reduce reflection cracks for roads with higher grades. The construction of crack prevention stickers is very simple, without the need for full laying. It only needs to be laid at the damaged areas or along the expansion joints of the old concrete, which reduces the project cost.

　　Polymer anti cracking adhesive is a composite of asphalt based polymer, tensile tire base, high temperature resistant and asphalt compatible fabric. This product has self-adhesive properties, is easy to apply, and can be directly attached to cracks. This structure is an organic and comprehensive application of several measures to prevent cracks on highways, and is an upgraded product for crack resistance and waterproofing on highways.

　　1. Isolation effect. Lay anti cracking stickers to isolate the cracked surface layer from the asphalt surface layer.

　　2. Avoiding direct contact between the cracking 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 adhesive can effectively bond the upper and lower layers together to withstand the vehicle load, which is sufficient to prevent relative displacement between the upper and lower layers at the interface and maintain continuity.

　　3. Reinforcement effect. Anti cracking 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 anti cracking sticker, the anti cracking sticker begins to deform, and the surface layer begins to bear the tensile stress transmitted by the anti cracking sticker. The anti cracking layer will bear all the tensile stress of the cracks, and obviously the anti cracking layer plays a reinforcing role. In this sense, it enhances the tensile strength of the pavement structure layer.

　　4. Energy dissipation buffering effect. Anti cracking stickers are materials 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 anti cracking sticker high polymer, thereby relieving the stress intensity at the crack. The elastic interlayer can absorb some of the tensile energy.

　　5. 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.

　　In summary, the use of crack prevention stickers in asphalt pavement layers can suppress the upward propagation of cracks, and play a role in crack resistance and energy absorption in practical engineering.

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