Hot Mix Asphalt Patching Tips
Your How-To Guide For Patching Potholes with Hot Mix Asphalt
Asphalt patching is a cost-effective solution to repair potholes and cracks. Patching protects asphalt surfaces and foundations from continued damage. If left alone, this damage will worsen over time and become more costly to repair.
Asphalt patching improves the safety and appearance of roads, driveways, and parking lots. It is a quick solution that yields lasting results. And best of all, it’s not too difficult of a job.
Asphalt patching can use either cold or hot asphalt mix. But hot mix asphalt provides a longer-lasting patch. To repair pavement on your property, consider the help of hot mix asphalt suppliers. And read on to learn more about patching techniques.
There are two common types of asphalt patching—surface patching and remove-and-replace patching. Surface patching is popular for residential projects. It is faster and easier than the latter type. When completing a surface patch, you will need to add asphalt glue to the patch area. You will then apply (or have a professional apply) hot mix asphalt on top of the existing asphalt surface.
Remove-and-replace patching takes more time. Although it involves more work, it can result in a longer-lasting patch. If you want to try the remove-and-replace patching method, follow these steps:
Remove Damage & Square the Hole
Remove damaged pavement with an asphalt saw, or with a hammer and a chisel or screwdriver. Square the asphalt, making the edges straight along the sides as well as up and down. This will make it easier to repair and ensure a longer-lasting patch. An asphalt saw is best to use for squaring potholes.
Clean the Pothole
To prevent future damage to the patch, remove any plant life in the pothole. You can pour vinegar on the plants to kill the roots if you are unable to uproot them. Plants left to grow will crack the patch and grow through it over time.
Remove any other debris and chunks of asphalt. Use a stiff broom to sweep out any leftover pieces. And clean as far down as needed to get a solid clean base.
Restore the Foundation
Fill the hole with a coarse gravel and sand mix until it is only one-inch deep. Tamp the aggregates and compress as you fill in the hole. A solid base will provide a long-lasting patch.
Measure the size of the damage—this will determine how much asphalt you will need to patch the holes and/or cracks. Square the edges of the pothole so it will be easier to measure the size of the hole—and multiply the length by the width. For example, a 1-foot by 1-foot hole will be 2 square feet.
Your asphalt supplier can help determine how much asphalt you’ll need.
Patch the Hole
Although cold asphalt mix is easier to use, hot mix asphalt will provide a more durable patch. Hot mix asphalt suppliers will deliver heated asphalt for projects of all sizes. They can even do the final step of the patching for you in a professional and efficient manner.
To fill and patch the hole, add a half- to a full inch of asphalt. Tamp down and repeat until the asphalt is overfilling the hole. If you don’t have a vibrating plate or tamping machine, you can use a metal tamper or a lawn roller.
And if you don’t have these tools either, then you can use a piece of plywood. You may want to oil one side first so it doesn’t stick to the asphalt. Lay the plywood on top of the patch and drive over it with a vehicle.
If you notice the pothole is not completely full after this tamping, add more asphalt. Tamp and repeat until it is level with the surrounding pavement. The quicker you finish patching, the better. You will need to complete the patching before the asphalt sets, dries, and hardens.
Seal the Patch
To prevent the elements and de-icing salt from damaging your patch, make sure to seal it. Wait four hours before sealing the patch so it has time to cure.
Only seal patches in dry warm weather. If you have to patch a pothole in the winter, wait until warmer spring weather to seal it. Use a paintbrush or roller to apply a thin seal coat to the patch. Wait for it to dry before applying the second coat.
If using hot mix asphalt, wait at least 24 hours before driving on the patch so it will have time to harden.
With quality asphalt, you can repair your own potholes and pavement damage. Contact hot mix asphalt suppliers for advice and help with your project. By patching asphalt before the damage worsens, you can add years to the life of your pavement. And you will improve its appearance, safety, and function.