How to repair hairline cracks in concrete basement?

How to repair hairline cracks in concrete basement?

Apply a concrete patch over the crack, making sure there are no gaps or uneven areas. Smooth the patch with a putty knife. If the crack requires a second patch, wait for the first coat to dry before applying the second coat. Seal the concrete patch and let it dry for several days.

Are cracks in the basement concrete floor normal?

Are cracks in concrete floors normal? The short answer is yes – cracks in concrete floors are normal, if not inevitable. As the concrete hardens, it will naturally develop tiny cracks as the mix dries and the water evaporates. Over time, your concrete basement floors can also crack due to uniform settlement.

When Should I Be Worried About Basement Cracks?

Cracks with heaving are signs of a bigger problem that needs to be fixed. Heaving is common where there is clay soil. When a crack in the basement is combined with heaving, it is cause for concern. The uplift suggests that the ground beneath the basement is expanding.

What is a hairline crack in concrete?

One definition of a hairline crack is a crack that has not opened. This means that there is very little room to fill it with anything other than a very low viscosity liquid. Since most hairline cracks do not affect the structural integrity of a countertop, sealing and concealing the crack are the primary goals of a repair.

What can I use to repair a crack in my basement floor?

If you think the concrete floor is done moving, you can repair these cracks and shrinkage cracks with an epoxy material that you inject into the crack and add silica sand for a sealer. This will weld the crack together creating a great basement floor repair.

Can a hairline crack in the basement be repaired?

Hairline cracks in the basement are superficial and do not require repair. If you’re worried about how they look, you can cover the concrete with a basement flooring like Basement Systems ThermalDry Wood-Look Plank Flooring or carpeting. Cracks 1/8 inch or larger should be sealed.

How to repair a hairline crack in concrete?

Hairline Crack Repair 1 Crack Chasing. You can do this in two ways. 2 Clean the crack. Using a wire brush or wire brush attachment on your drill, scrub in and around the crack to help loosen and chip 3 Fill the crack. Use a concrete epoxy to seal the crack. …

What is the best way to repair a crack in concrete?

Polymer modified cement grout is the typical material used to fill pinholes and voids in concrete during fabrication. If cracks occur before the concrete is sealed, this is often the material used to repair them. 3. Sealer application The selected sealer is applied to the substrate using a squeegee and/or in combination with a roller.