Geomembranes are used extensively in highway applications. In recent years, geomembranes have been used more extensively in the projects I have been exposed to. Geomembranes are used in pavement structures. It can reduce or retard the reflection cracks of old road asphalt surface by paving at the bottom of asphalt surface of old asphalt pavement and old cement concrete pavement or at the bottom of asphalt surface of new roads.
It also reduces rutting and low temperature cracking of asphalt pavements and improves the service life of the pavement. Asphalt pavement and cement concrete pavement are the main pavement structures for high grade roads, and they are two different mechanical functions of the pavement structure.
There are two types of asphalt pavements:flexible bottom asphalt pavement and semi-rigid bottom asphalt pavement. In the early days, the main construction was the flexible bottom. In recent years, with the development of traffic, the main subgrade construction is semi-rigid base asphalt pavement. This pavement structure has been used for a long time.
Structural and functional damage such as vertical and horizontal cracking, rutting, poor grading, skid resistance, etc. often occurs and is corrected using asphalt mixtures. The biggest problem with this type of overlay project is the rapid reflection of cracks from the original pavement onto the pavement {1 typically 2 to 3 years}, causing damage to the structural layer of the overlay.
Cement concrete pavement use in the next period of time will also appear 1 group of structural and functional damage, especially the pavement joints lubrication and lumps appear like now, often using the method of asphalt mixture surface cover, but assuming that the pavement joint is not treated, will certainly be reflected in the appearance of the road, shortening the life of the skin layer.
Newly built highway in semi-rigid subgrade data, poor concrete subgrade data shorten the crack or expand the seam, is also now a major problem, how to reduce cracks, avoid pavement surface cracks shooting, which is the key to Rhine high quality highway. Now, the engineering community has been looking for some new information to deal with this problem more economically. As can be seen, in this case, excavated membranes are being applied to the pavement structure with good results.
The above can be seen that geomembranes are very widely used and can also reduce the reflection cracks in the asphalt surface of the road. If you have any product needs, call us for details and we will take reasonable advice for you!
Post time: Dec-28-2022