Understanding Asphalt Driveway Cracking Issues
If you need a new driveway, then an asphalt one is a good option if you want something that will last a long time. While this is true, you will likely notice some cracks forming in the asphalt surface after the installation is completed. Cracks will typically form in as little as one year. If you want to know why these cracks develop and also what should be done when they start to appear, then keep reading.
Why Do Asphalt Cracks Develop?
Some serious cracking will be noted across the surface of your driveway if the subbase is not prepared properly or if drainage is an issue. Also, excessive loading, an asphalt surface that is too thin, and poor sealing can cause cracking as well. All of these things are caused by poor installation and care. If installation is completed properly and you care for the driveway, then cracks are often caused by environmental factors that are out of your control.
A weak base deep underneath the asphalt may be the issue. Certain types of soil, like ones made with an abundance of clay, can shift or move as more water infiltrates the earth. Also, the weight on the top of the soil can cause the earth to fall slightly. If the soil is weak, then your contractor will typically use a thicker base of gravel to mitigate some of the weakness issues. However, this cannot completely strengthen the ground and eliminate cracks entirely.
The typical freezing and thawing of water underneath the asphalt can cause cracks to develop as well. If you have cold winters in your area, then this is a common problem that cannot be actively prevented.
How Can Cracks Be Treated?
Since cracks can and will develop on their own over time, you should inspect your driveway often to see if they develop. If cracks are noted, then you should fill them in in the spring. Also, you should schedule a sealcoating about once every two years. However, you should keep in mind that the sealing is not meant to completely fill in deep cracks. Sealers can fill in small cracks though and keep them from widening. Specifically, if you see a crack that is about one-quarter of an inch deep or wide, then you can allow the sealer to fill in this sort of damage.
If you notice larger cracks or openings, then you will need to use a crack filling product to fill them in. Both cold and hot asphalt mix products can be utilized, but cold mix ones are easier to use. If you do not feel comfortable using a filler material, then an asphalt driveway specialist can fill in the cracks for you. Companies like Deluxe Blacktop Paving can help.