About the advantages of polyester fiber

Polyester fiber can improve high temperature stability and high temperature stability. Due to the three-dimensional distribution of polyester fiber monofilament, it has strong adsorption with asphalt and is not entangled, so it can absorb too much free asphalt.

Improve low-temperature crack resistance, fiber adsorption to asphalt, resulting in an increase in the optimal amount of asphalt in asphalt concrete, higher asphalt content, so that the fiber-asphalt mixture still maintains flexibility and high resistance at a low temperature of -40 ℃ Tensile strength, effectively resist shrinkage stress, enhance the low temperature crack resistance of the mixture, reduce the occurrence of temperature shrinkage cracks and prevent the development of reflection cracks.

Improve water stability The water stability of asphalt pavement refers to the repeated action of traffic load and temperature expansion and contraction of asphalt pavement in the presence of water. The addition of polyester fibers increases the thickness of the asphalt film, reduces the strength of the water-displacing asphalt, and reduces the amount of water infiltrating into the asphalt concrete. In addition, the adsorption of the fibers increases the viscosity of the asphalt, which improves the asphalt and the asphalt. The cohesive force of the aggregate enhances the ability of the interface film formed by the asphalt and aggregate in the asphalt mixture to resist water peeling, thereby improving the water stability of the asphalt mixture.