3 Useful Tips On How To Repair Concrete Floors
Concrete subfloors and floors are repairable by using one of three general methods. All of them involves covering the existing concrete slab with either a new concrete coating or a topping which is concrete-like and finish the new layer as per your specification. These methods can be applied on the exterior as well as interior surfaces and are only applicable for surface restoration purposes. For repairing this type of surfaces you need to concern expert concrete contractors.
When Is It Necessary To Do Repairs On Concrete Floors?
Repairs should be carried out only when the concrete slab has hairline or surface cracks or otherwise cosmetic flaws on the surface. In the case of heaving, damage due to freezing or large and wide cracks, other alternative methods must be considered instead of resurfacing.
Micro-topping treatments consist of thin layers of polymer-modified concrete which contains sand and is no thicker than 1/8 inches. The layer is applied with either brushes or trowels depending on the finished look you’re going for. Micro-toppings are not self-leveling, dry quickly; therefore, the final texture is dependent on how it was applied over the concrete floor. Treated surfaces can cure within a day and can be walked over after 36 to 42 hours after application. Micro-topping finishes must be sealed as they are porous and are prone to collecting dirt which is tricky to remove once they’re embedded in the material. This type of application can consist of two or more base coats and in some instances, a very thin topcoat without the sand to acquire a smooth finish.
This method has been used extensively on exterior surfaces and more recently on interior floors too. Stamped concrete is cost-effective, a durable option and is available in a range of patterns and colors. The application starts with a thin layer, usually ¼ to 5/8 inches of concrete that is added to an existing slab after which it is textured with a stamping tool to create a look of natural stone, brick or tile. The concrete can be dyed or tinted. Stamped concrete is comparable to micro-topping except it contains more sand and has a more robust concrete surface finish. After the pattern is formed, a coat of concrete sealer is applied.
Self-Leveling Underlay And Topping
Self-leveling applications can be used on most concrete floors and are thick enough to cover uneven surfaces as well as relatively profound surface impairment. This treatment can also be tinted during initial mixing, or the treatment can be colored after application and curing by using dyes.
One of the most imperative features of self-leveling concrete is that it provides for a dense and durable concrete surface. Most of them can go down ¼ to 1 inch and can be featured into the existing floor with a gradual transition. Self-leveling has two main groups, namely underlayments and toppings. Underlayments are applied over an existing concrete subfloor to correct surface irregularities and smoothing it out before installing other floor coverings. Toppings, on the other hand, are the actual finished floor without adding other floor coverings. For better maintenance and repair, you need to hire professional concrete service providers.