Polyester fibers can effectively improve the tensile, compressive, shear and impact strength. Experiments show that: tensile, compressive strength increased 15-18% each. 
 Details: 
 Polyester 

 Dedicated asphalt concrete 

 Polyester fiber is specifically designed to enhance the production of asphalt concrete crack enhanced R & D of new materials, it is 100% polyester synthetic materials, the unique process with a bundle of synthetic fibers, high strength, corrosion resistance, high temperature, chemical stability, strong bond with the asphalt, etc., adding asphalt concrete, can be formed by mixing a huge amount of three-dimensional distribution of monofilament fibers, play a bridging role and reinforced in order to effectively improve the asphalt mixture the mechanical properties of asphalt concrete to prevent cracking. 
 Polyester fiber performance parameters 
 Raw ingredients monofilament polyester fiber type 
 Equivalent diameter 10-25um length of 6 ± 1mm 
 Proportion of 1.36-1.38g / cm3 Color Natural (white) 
 Tensile strength ≥ 950mpa 15-50% Elongation 
 Elastic modulus ≥ 9000mpa melting point 240 -260 ℃ 
 Curl of the non-lighted> 560 ℃ 
 Acid and strong heat resistance 210 ℃ 2 小时 conditions, no change in volume 
 Main function 

 ◆ improving the low temperature cracking resistance of asphalt concrete 
 Sudden drop in temperature and low temperature environments, the general contraction or asphalt pavement will occur too late to stress relaxation and cracking. If polyester fibers added to the asphalt concrete, the mixture evenly with a large number of criss-cross inside the fiber monofilament, so that increase the flexibility of asphalt, it has a good resistance to deformation, remains flexible at low temperatures and high tensile strength, resistance to shrinkage stress effectively reduce the temperature and shrinkage cracks, thus improving the performance of low temperature cracking of asphalt concrete. 
 ◆ improving the fatigue resistance of asphalt concrete 
 Uniformly distributed in the mixture and reinforced the role of stiffness modulus to increase 11.3-1.4 times, improved fatigue properties. 
 Polyester fibers can be significantly improved the water stability of asphalt concrete, spalling resistance, abrasion resistance and durability, effective against reflective cracking products, thus greatly improving the quality of the road, to extend the life of the road. 
 Polyester fibers can effectively improve the tensile, compressive, shear and impact strength. Experiments show that: tensile, compressive strength increased 15-18% each. 
 ◆ the amount of polyester fiber recommendations admixture 
 According to the size of traffic, the recommended dosage of polyester fibers (mixture per ton in the pro-ask basis) 
 For high-grade road 
 Traffic density (traffic day and night) the amount of admixture 
 <3000 1-2kg / t 
 3000-30000 2.5-4kg / t