What can Leris do?
Leris is a synthetic fiber made by spinning polyester obtained by polycondensation of organic dibasic acid and diol. It is a polymer compound. Because of its unique advantages, it is used in various fields. What exactly can Leris do? Next, let’s focus on asphalt and see what it can do.
1. Improve high temperature stability and high temperature stability. Since Lelis has a strong adsorption force on asphalt and will not tangle, it will absorb too much free asphalt and increase the asphalt viscosity. At the same time, due to the crisscross reinforcement and bridging of Leris, the fluidity of asphalt is reduced, its lateral displacement or flow is restricted, and the high temperature stability is effectively strengthened, and the stability of fiber asphalt concrete has been greatly improved.
2. Lelis can improve low temperature crack resistance and fiber absorption of asphalt, thereby increasing the asphalt content in asphalt concrete. Higher asphalt content can 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.
3. Lelis can improve the anti-fatigue performance. In an external temperature environment, asphalt pavements are subjected to repeated wheel loads. When the repeated action of the load exceeds a certain number of times, the stress generated in the pavement under the load will exceed the structural resistance of the reduced strength, causing cracks to appear on the pavement, resulting in fatigue fracture damage. This situation can be changed to a great extent after using Leris.
4. Improve water stability. The water stability of asphalt pavements refers to the repeated effects of traffic loads and temperature fluctuations on asphalt pavements in the presence of water. The use of Leris thickens the bituminous film, reduces the strength of the water-displaced bitumen, and reduces the amount of water that penetrates into the asphalt concrete.