product description:
With the large-scale construction of transportation infrastructure, especially the rapid development of highway construction, asphalt pavement has occupied an increasingly important position. With the increase of highway traffic volume, traffic load increase, traffic channelization, etc., Higher requirements are placed on the engineering quality and durability of high-grade asphalt pavement. In order to avoid early damage to asphalt pavement, such as rut cracking, potholes and other diseases that affect its service life, in recent years, industrially produced polymer synthetic fibers have been used as reinforcing materials in asphalt concrete, which has been approved by my country’s transportation industry. It is generally concerned and widely recognized by domestic and highway research departments.
Polyester fiber is a new anti-crack reinforcement material specially developed and produced by our company for reinforcing asphalt concrete. It is made of 100% polyester synthetic material and processed by a unique process. It is a bundled monofilament synthetic fiber with high strength and corrosion resistance. , high temperature resistance, strong chemical stability and strong grip of asphalt, etc., when added to asphalt concrete, a large number of fiber monofilaments can be formed in three-dimensional random distribution after stirring, which plays the role of reinforcement and bridging, and effectively Improve the mechanical properties of asphalt mixture and prevent cracking of asphalt concrete
Function:
Improving the high temperature stability of asphalt concrete:
Due to the three-dimensional distribution of polyester fiber monofilaments, it has strong adsorption with asphalt and is not entangled, which increases the cohesion of asphalt concrete and improves the viscosity. In addition, the addition of criss-cross fiber monofilaments The effect of reinforcement and bridging reduces the flow performance of asphalt and greatly improves the stability of asphalt concrete in high temperature environments.
Improve low temperature cracking resistance of asphalt concrete:
In a sudden drop in temperature and low temperature environment (such as winter in the north), the general asphalt pavement will shrink or crack due to stress relaxation. If polyester fibers are added to asphalt concrete, a large number of evenly distributed criss-cross fiber monofilaments inside the mixture will improve the elasticity of the asphalt mixture, make it have good deformation resistance, maintain flexibility and high tensile strength at low temperatures, effectively resist shrinkage stress, reduce temperature shrinkage cracks, and improve the low-temperature crack resistance of asphalt concrete.
Improve the fatigue resistance of asphalt concrete:
The evenly distributed reinforcement effect of polyester fibers in the mixture increases the strength modulus by 1.3-1.4 times and improves the fatigue properties.
Polyester fiber can significantly improve the water stability, spalling resistance, wear resistance and durability of asphalt concrete, and effectively resist the generation of reflection cracks, thereby greatly improving the quality of the road surface and prolonging the service life of the road surface.
Polyester fiber can effectively improve tensile, compressive, shear and impact strength.
Post time: Jul-24-2023