Potholes also allow water to penetrate your parking lot, which will eventually deteriorate the base of your parking lot. Fixing the potholes quickly is important to prevent these problems.
When it comes to potholes problems, it’s far more cost-effective to patch and repair asphalt surfaces than to repave. Have you ever wondered how paving patches works and what to use? Let’s explain the basic asphalt patching techniques.
Surface Patching is one of the popular options for residential parking. This option is often suggested for areas that are cracking but not crumbling. During the patching process,asphalt glue is added to the patch area and hot asphalt is applied directly on top of the pre-existing asphalt surface. It is less expensive to do it this way compared to cutting out and replacing asphalt areas.
Although a surface patch will help prevent water from further penetrating the asphalt, it is still a temporary fix, with an estimated lifetime of approximately two years, depending on traffic and use of the area.
Partial Patching grinds off the top 2–3 inches of asphalt, replacing it with new compacted asphalt, and sealing the edges. Partial depth repair is only feasible when the deterioration occurs only in the surface layer of asphalt.
Removal & Replacement Patching is a more permanent and more costly method of repairing deteriorated asphalt. It requires removing all asphalt in the failing areas all the way to the sub-base. Once the decayed asphalt has been removed, the base should be leveled and compacted. The new fresh asphalt patch is then applied in two layers, both about 1 and a half inches thick, compacting each layer for a more stable, permanent patch.
If more than 25% of your parking area requires this method of repair, you should consider a total replacement or asphalt milling.