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What Does It Mean to Mill Asphalt?
Milling asphalt essentially means removing part or the entirety of the pavement. It entails using a machine called a milling machine which uses a cutting drum to grind up and remove the surface of the asphalt. The goal is to provide a clean, level surface on which to apply new layers of asphalt without increasing the overall height of the asphalt.
Asphalt milling an effective way to redo asphalt without disturbing the sublayers. It also keeps draining pipes and curbs safe and undisturbed. Plus, once the desired layers of asphalt have been removed, many companies will save this asphalt to recycle and use on other projects.
There is also something called “micro-milling.” This uses essentially the same process, but the cutting drum has many more teeth than a regular milling machine. Because the teeth are so small, they leave behind a much smoother surface. This might be smooth enough to work at the final result, but another layer of asphalt is usually added on top to ensure the smoothness of the asphalt.
What Is Asphalt Milling Used For?
There are many uses for asphalt milling. One is to create rumble strips, which are grooves on a road, usually found close to the shoulder. These are used to alert drivers of possible hazards on the road, by creating a vibrating sensation as your car drives over them, as well as a rumbling sound.
Asphalt milling also helps smooth out uneven roads. By removing the top layers and laying down a new, smooth layer of asphalt, you’ll be getting rid of bumps and holes that can be real impediments to the driver. The same is true for any damages that may have occurred to the asphalt. Accidents, fires, and anything that might have compromised the aggregate of your asphalt can be fixed and resolved by asphalt milling.
Asphalt millings produced from this process are recycled and used as part of new pavement. These are inlaid cold, as opposed to regular asphalt which is heated and poured onto the driveway. Asphalt millings provide a solid surface and require relatively little maintenance.
How Long Do Asphalt Millings Last?
If you are using asphalt millings to fill in your pavement, this surface can last you about 20-30 years. Of course, for your pavement to last that long, you’ll have to make sure that the millings are applied correctly. Make sure that wherever you’re installing the millings is properly drained, since water will affect the integrity of your pavement.
You’ll also need to make sure it’s warm enough so that the millings can harden properly. You can either have the millings professionally installed or, if you’re feeling up to it, you can do it yourself.
As long as your millings are installed properly, they’ll provide a great surface that will last you at least a couple of decades. Since asphalt millings are recycled, it also lessens the environmental impact of your pavement, which is important to many people. Asphalt milling pavements also require minimal maintenance, making them an ideal choice for larger lots of driveways, or people with busy lives!
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