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Polyester stitch-bonded fabric is high performance, high quality, and high product characteristics. It overcomes the defects of raw materials, improves the tensile strength and creep resistance of polyester stitch-bonded fabric, and improves various basic properties and technical indicators such as longitudinal and transverse tensile strength. It significantly improves its low-temperature crack resistance, fatigue resistance, and anti-reflection properties, thereby prolonging the pavement's service life.
The polyester stitch-bonded fabric has a smooth surface, more uniform thickness, loses transparency, and has strong compatibility with the asphalt mixture, and the use effect is more obvious. Placing a layer of polyester fabric between the bottom layer and the surface layer of the asphalt pavement structure can reduce and delay the pavement cracking due to the overlapping of the new and old pavement and the semi-rigid base layer and prevent the base layer from cracking. Damaged by water intrusion.
Features of Polyester Sewing Fabric:
(1) Compared with ordinary anti-crack cloth, polyester stitch-bonded cloth has low elongation and high tensile strength, which ensures the long service life of the product.
(2) Polyester stitch-bonded fabric has stable chemical properties. After updating the process and formula, it can resist various chemical corrosion and climate change and has a wide range of applications.
(3) Polyester stitch-bonded fabric will not be damaged below 205 degrees, and asphalt temperature should be controlled at 55-168 degrees so as not to affect its durability.
(4) Polyester stitch-bonded fabric has a good consistency and can form an effective waterproof layer. Even in the case of small cracks in the surface, this can essentially prevent surface water from seeping downward and prevent road bed material from being eroded by water.
Engineering Application of Polyester Sewing Fabric:
(1) Applies to newly constructed and widened road rehabilitation projects;
(2) It is suitable for the treatment of foundation road reinforcement and the treatment of shrinkage cracks in semi-rigid foundations;
(3) It is suitable for the reconstruction and expansion of old cement pavements and the installation of asphalt pavements;
(4) Polyester seam-woven fabric is suitable for the maintenance and repair of old asphalt roads, to prevent and repair road surface cracks due to reflection and uplift of old foundation cracks.
(5) Strengthening the base layer of airport runways, roads, bridges, railway construction, and other projects.
Traditional non-woven fabrics have low air permeability so that the water vapor between the base layer and the waterproof layer cannot pass through the non-woven fabric and accumulate between the two, thereby affecting the adhesion between the waterproof layer and the base layer. Polyester stitched fabric has good air permeability and water permeability, which can not only absorb waterproof material well but also release a large amount of water vapor due to temperature increase in time to ensure the service life of the waterproof layer.
Source: Online/NAN
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