If you have a concrete floor that is peeling or chipping, there are several ways to repair it. The most common cause of peeling concrete is an installation error, such as adding too much water to the mix or not curing the concrete properly after installation. Other causes include freeze-thaw cycles, de-icing salts, and poor finishing techniques. For larger areas of pitting and chipping, we recommend using a 100% epoxy concrete patch with a sand aggregate.
The silica sand is mixed with the epoxy resin to act as a filler. The HD-110 concrete patch from Legacy Industrial is a good example of this. If you have some holes due to pitting or localized peeling, this is where epoxy concrete respavers will work best. Polymer-modified cement patches are a good choice for areas with very deep pits, broken concrete lips and edges, deep holes, and other areas where repair may need shaping, such as the edge of a concrete pad.
Once you're done and the repairs have cured, you may need to lightly grind any ridges or areas where the mixture hasn't melted well with existing concrete. Splinters can appear because the rebar has been exposed and moisture and water have started to rust the rebar or because the concrete joints were built incorrectly. To prevent this from happening in the future, make sure that your contractor uses a high-quality concrete mix and follows proper curing techniques. When re-paving your driveway, use this diagram to help you place the concrete screed strips and “picture frame strips” you'll need.
First, 1 gallon should be enough to repair 8 to 10 square feet of chipping, with a depth of ¼ inch. For a garage, the depth of damage is usually less than ¼ for peeling and ½ for some bites. The remedies for chipping vary depending on the severity of the problem, the type and location of the concrete structure and other factors. If you want to protect your driveway from future damage, consider having it re-coated with an overlay.