After installing asphalt paving on your driveway, it will be subjected to extreme weather conditions that vary drastically from one season to another. It is not uncommon for asphalt paving to develop pot holes that come as a result of water seeping into the base courses, making them weak. As you drive over the surface, huge chunks of asphalt break loose and form unsightly holes that must be fixed. If this happens, you need to get a professional to patch these potholes. There are two viable maintenance options that asphalt repair contractors will use to fix this problem: cold patching or hot mix. Below is a quick overview of each option, which will guide you in selecting best the repair approach for your asphalt potholes.
Cold patching is a temporary way that is used to fix the asphalt pothole. The contractor will visit a hardware store and buy a cold mix of asphalt that is packaged in bags. After this, they will sweep the loose rubble from the repair site, blow away residual materials using compressed air, apply a primer and then pour the cold mix of asphalt from the bag over the hole. They will finally use a hand, gas- or air-powered vibrating tamper to compact the mixture until it feels firm and covers the hole completely. Remember that cold patching is a temporary solution that will keep the driveway in a usable condition for a short time. It only deals with the problem superficially without addressing the underlying issues.
Hot patching is a more permanent method of repairing asphalt potholes. It involves excavating the damaged site using a pick and shovel until you reach the underlying layers. The asphalt repair professional will dig uniformly around the pothole until they get to a depth of about 5 inches. Once they are done, they will pour 3 inches of gravel into the area to act as the base rock. They will then pour a Hot Mix Asphalt (HMA) over the hole, which is created by mixing stone with gravel or sand and binding it with asphalt cement.
All these ingredients are heated at the manufacturing facility and delivered to the site by trucks to preserve the high temperatures. Once the contractor pours it on the hole while it is still hot, they will compact it with a roller until it is an inch higher than the adjacent part of the pavement. This prevents the repaired site from forming a depression that will collect water due to further compaction resulting from driving over it.
It is important to use a professional asphalt repair contractor to fix potholes. This is because they will not only guide you in selecting the best repair option, but will also determine what caused this problem in the first place and recommend measures to prevent future occurrences. Visit http://www.lakeridgepaving.com to learn more.