Asphalt Repair: The Difference Between Cold Patching and Hot Mix Patching

Asphalt Repair – Two Approaches

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Potholes and cracks appearing on asphalt coated surfaces are bound to appear with time, and they are almost always caused by long, sustained damage and temperature variations. Good property maintenance demands that such a surface—be it a pavement or a parking lot—be repaired as soon as the damage appears to prevent further damage and mitigate the costs of the asphalt repair.

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Sometimes, depending on the severity of the damage, repair may involve simple patchwork or it may take a lot of work to restore the surface. There are different ways to do the repair, the most popular being cold patch and hot mix. Read on to discover the difference between the two.

Cold Patch Asphalt Repair and Its Application

Some people see this as a “do-it-yourself” asphalt repair technique because of its simplicity, cold patch repair is a method that involves the use of ready-made polymer-modified asphalt. The asphalt is mixed with water then poured over the pothole or crack to fill and packing it as best as possible. The mix will dry quickly and the repaired surface will typically be ready to use within three to five hours.

As you can imagine, cold patch asphalt repair is a temporary fix that is great for small repairs that have to be carried out fast but do not necessarily have to be permanent. It is a very economical approach to sealing small potholes and cracks compared to hot mix patching and does not generally have a long life expectancy. Experts recommend that an asphalt surface is cold-patched as a way to mitigate further damage until hot mix patching is available or affordable.

Hot Mix Asphalt Repair and Its Application

For hot-mix asphalt patching, a solution made up of sand, gravel, or stone and asphalt cement is heated up to over 400 degrees and transported to the repair site.  This mix is poured into the cracks and potholes on the surface and heavy rollers are used to smooth the surface. This technique of asphalt repair is not for do-it-yourselfers considering the equipment and effort required to make the mix and apply the patch the right way.

If you have a surface with deep and wide potholes or large areas of damaged pavement, hot asphalt patching is the ideal solution to restore the surface with permanent results. While this process is more expensive compared to cold patching, it leaves the repaired surface as attractive as new. Hot asphalt patching repair requires more thorough preparation, and the surface takes more time to be ready for use. The extra time is needed so the mix will harden properly and bond with the asphalt surrounding it.

The best choice for repairing damage on an asphalt surface is hot mix. Not only does it produce better and lasting results, over time it is cost-efficient and a great way to preserve the value of a property. Cold patching, on the other hand, is a good temporary fix that can be used until hot mix patching is available (or affordable).

Do you have more questions on which type of asphalt repair you need?  Call us at 732-886-1940 and we will be glad to discuss your asphalt repair needs, objectives, and budget.

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