Polyester fiber is a new anti cracking and reinforcing material specially developed and produced for reinforcing asphalt concrete. It is a bundle shaped synthetic fiber made of 100% polyester synthetic material and processed by unique technology. It has the advantages of high strength, corrosion resistance, high temperature resistance, strong chemical stability and strong adhesion with asphalt. When added into asphalt concrete, it can form a large number of three-dimensional fiber monofilament after mixing In order to effectively improve the mechanical properties of asphalt mixture and prevent the cracking of asphalt concrete, cloth plays the role of reinforcement and bridge.
| Polyester fiber for asphalt | |
| Material | 100% polyester |
| Diameter | 15um ,25um |
| Length | 3-60mm |
| Density | 1.18g/cm3 |
| Tensile strength | 900Mpa |
| Melting point | 250℃ |
| Packing | 1kg/PE bag, 25kg/woven bag |
Function:
Improve the low-temperature crack resistance of asphalt concrete. Under the sudden drop of temperature and low-temperature environment, the general asphalt pavement will shrink or have no time for stress relaxation to produce cracking. If polyester fiber is added into asphalt concrete, a large number of evenly distributed and crisscross fiber monofilaments are distributed in the mixture, which can improve the elasticity of asphalt mixture, make it have good deformation resistance, maintain flexibility and high tensile strength at low temperature, effectively resist shrinkage stress and reduce temperature shrinkage cracks, so as to improve the low temperature resistance of asphalt concrete Cracking property.
Improve the fatigue resistance of asphalt concrete, evenly distributed and reinforced in the mixture, increase the stiffness modulus by 11.3-1.4 times, and improve the fatigue characteristics. Polyester fiber can obviously improve the water stability, spalling resistance, wear resistance and durability of asphalt concrete, and effectively resist reflective cracks, so as to greatly improve the quality of pavement and prolong the service life of pavement. Polyester fiber can effectively improve the tensile, compressive, shear and impact strength. Relevant experiments show that the tensile strength and compressive strength are increased by 15-18% respectively.
