1. Improve high-temperature stability and increase high-temperature stability. Due to the three-dimensional distribution of polyester (polyester) staple fiber monofilament, it has strong adsorption with asphalt and does not entangle. It can absorb too much free asphalt and make asphalt The viscosity and cohesion of the asphalt become larger, and at the same time, due to the crisscross reinforcement and bridging effect, the flow performance of the asphalt is reduced, the lateral displacement or flow of the aggregate is limited, and the high temperature stability is effectively improved, so that the fiber The stability of asphalt concrete has been greatly improved.
2. Improve the low-temperature crack resistance of asphalt mixture, the adsorption of fiber to asphalt, increase the asphalt content in the asphalt mixture, and increase the asphalt content, so that the fiber asphalt mixture can maintain flexibility and high resistance at -40 °C Tensile strength, effectively resist shrinkage stress, improve the low-temperature crack resistance of the mixture, reduce thermal shrinkage cracks, and prevent reflection cracks.
3. Improve anti-fatigue performance Asphalt pavement is subjected to repeated wheel loads under the action of external temperature environment. When the load is repeated for more than a certain number of times, the stress generated in the pavement under the load will exceed the structural resistance of the reduced strength. Cracks appear on the pavement, leading to fatigue fracture damage. After adding polyester fibers, the uniform distribution of fiber monofilaments in the mixture increases the stiffness modulus and improves the fatigue resistance of asphalt concrete.
https://www.huacaifiber.com/
