Many highways, after being constructed, inevitably face a common issue as time wears on: cracking. What causes these cracks? How should they be addressed? To extend the lifespan of highways, it is common practice to use pavement crack sealant for maintenance and supplementation.

After long-term rolling, the ground becomes smooth, and cracks gradually seep in rain and snowwater.

Due to insufficient strength of the road or semi-rigid foundation, or due to vehicles being severely overloaded, the tensile stress of the asphalt pavement or semi-rigid foundation exceeds its fatigue strength, thereby causing cracks to form during the repetitive loading actions of the vehicle. Pavement adhesive.

Three, the cracking, thermal differences, and temperature changes in the semi-rigid base asphalt surface pavement are due to the contraction of the semi-rigid base. The rigid-soft composite pavement refers to cracks caused by the temperature gradient changes in the cementitious slurry pavement, reflecting through the shrinkage joints and construction joints on the asphalt pavement.

Just like a taxi for transporting goods, due to the heavy load capacity of trucks, the road cannot cover the ground for a long time.