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You should sand concrete before painting, as it helps remove any irregularities and pieces that stick out from the surface. This not only helps the paint look better but it prevents any unwanted water absorption.

Concrete walkways cost around $1,800 for 200 square feet. At an average width of 3 feet, that price will likely cover a walkway that’s around 65 feet long. This price is also for walkways that are 4 inches thick. If you need thicker concrete to support vehicle traffic, you will pay more. This price includes the cost of the concrete itself, as well as the cost for delivery and installation.

You can dry pour concrete over existing concrete, but it’s best to use wet pour concrete instead. Dry pour concrete is easier to apply, but in order for new concrete to adhere to old concrete, it needs the right mixture for slow, uniform curing. Additionally, dry pour concrete is less durable and less resistant to cracking and concrete sinking, so dry pouring over an existing slab may result in surface imperfections appearing prematurely.

Placing either a layer of mixed-size gravel or a paver base under your crushed concrete driveway is a good idea. The smaller pieces will compress and prevent the larger pieces of concrete from driving into the soil below, helping to avoid sinking over time under the weight of vehicles. For added protection from sinking and weeks, you can also install a heavy-duty weed liner beneath the gravel or paver base. Just be sure to use a permeable material to avoid drainage problems.