Anti cracking sticker specifications

Description :

　　The commonly used specifications for crack resistant stickers are widths of 32cm, 48cm, and 96cm, with a thickness generally ranging from 1.5 to 2.5mm.

　　What is anti cracking sticker? Crack resistant stickers are a new type of material used to prevent reflective cracks in road white to black conversion. Crack resistant stickers prevent asphalt concrete cracking and resist reflective cracks. As reinforcement bars for asphalt concrete, crack resistant stickers have properties such as oil absorption, bonding, and high temperature resistance, which can improve the thermal stability and low-temperature crack resistance of asphalt concrete. Crack resistant stickers have a strong inhibitory effect on cracks and looseness in asphalt pavement, and can resist the development of reflective cracks.

　　Reflection cracks are caused by the significant displacement of the old concrete surface layer near the joints or cracks, leading to stress concentration in the asphalt overlay layer above it. This causes various parts of the asphalt surface layer to be constrained by each other, resulting in the displacement of the asphalt surface layer. Add polyester "anti cracking stickers" to prevent reflective cracks from occurring. The former leads to concentrated tensile stress in the asphalt overlay above the joints or cracks; The latter subjects the asphalt overlay above the joint to greater bending tensile stress and shear stress, thereby preventing reflective cracks. The application of self-adhesive crack prevention tape is to prevent reflective cracks. It has the advantages of low cost, easy construction, and good reinforcement effect.

　　Application of anti cracking sticker specifications:

　　The 32cm anti cracking sticker with a specification of 48cm (50cm) is commonly used in the white to black conversion project of cement concrete pavement. Cement concrete pavement has advantages such as high strength, good stability, good durability, long service life, good night driving conditions, low maintenance costs, high traffic capacity, and no pollution. Since the reform and opening up, cement concrete pavement has been well applied in urban road construction.

　　However, this type of cement pavement also has obvious drawbacks: it requires a large amount of materials, has joints, opens up traffic later, and is difficult to repair. Due to the sharp increase in traffic volume, overloading, heavy loads, as well as various reasons such as design and construction, urban road surfaces have been damaged, and their performance has declined. The disadvantages of old cement concrete road surfaces, such as poor driving comfort and slow driving speed, have gradually become apparent. Moreover, due to the nature of urban roads (large traffic volume, existing elevation restrictions), it is impossible to set up interlayers between asphalt concrete surface layers and old concrete surface layers like on ordinary highways.

　　In this situation, in order to reduce costs and restore the various functions of the road surface as soon as possible, adding asphalt concrete on cement concrete pavement has become an important urban road renovation technology.

　　Due to the displacement of the old surface layer near the joint or crack, stress concentration occurs in the asphalt concrete overlay above the joint or crack, including horizontal displacement caused by temperature and humidity changes and vertical shear displacement caused by traffic loads, forming reflective cracks. Adding road "crack resistant stickers" between the asphalt overlay and the old cement concrete pavement is a measure to prevent reflective cracks.

AfterSalesService :

• anti-cracking tape