Pouring new concrete over old concrete will not work and worsen things. Instead, follow these measures to help the new concrete adhere to the old and give the area a sleek, new appearance:
– Power washes the concrete slab’s surface at least once a year and more if necessary to clean the surface.
– Use a wire brush to clear away any dirt or debris.
– Cut an opening in the new apron around the area’s perimeter to be coated so you can see exactly what you are working on.
– Mix a thin layer of epoxy on the surface and spread it out evenly using disposable plastic gloves or a paper towel moistened with water.
– Apply a second coat of epoxy to thoroughly cover the area as long as it’s not freezing or extremely hot outside.
– Let dry for at least four hours before putting things back into place. An overnight drying period would be even better.
– Cover the area with plastic sheeting to protect the surface from the sun, rain, and snow until you are ready to finish the project.
– Once the concrete is completely dry and the epoxy is completely cured, we use a power washer to remove any residue left on the surface or still trapped in any small cracks and crevices in the concrete.
– Then, you can paint over the surface or fill up any cracks.
Concrete resurfacing costs roughly $50 per square metre plus the cost of the concrete. Repairs, including surface preparation, cleaning, crack repair, and other essential work beyond the scope of resurfacing, can push the price up to $100 per square metre.