Repairing Concrete Basement Wall Cracks

Block out the injection ports.

Repairing concrete basement wall cracks.

A structural engineer should inspect any cracks that are wider than a pencil tom silva this old house. This basement has a crack running horizontally along the block concrete wall. Fix concrete cracks in 8 steps step 1. Unfortunately in the case of basement floor cracks the water is entering from the underside that you can t reach.

Poured in place concrete walls these are the most common type of basement walls built across the us today. The only way to repair foundation wall cracks successfully is by the injection process. Crack repair methods also depend on the type of foundation that s breaking. Concrete wall crack repair in 8 steps step 1.

10d finishing nails partway into the crack spaced 12 in. The problem is that the best topical crack repair is one applied on the side of the concrete where the water first enters. Use a nail to align injection points. Repair a foundation crack with an epoxy sealer.

Repairing a foundation crack of this nature is similar to repairing other non structural cracks. Fill it with a caulk suitable for use on concrete. Fill larger cracks inside and out with hydraulic cement which expands as it cures. You can t handle this cracked wall by simply filling the crack and finishing off the basement.

First scrub the crack clean of any loose concrete paint or old filler using a wire brush. 10d finishing nails partway into the crack spaced 12 in. To fix the vertical cracks in your retaining wall the first step is to clean the cracks and ensure there s no loose concrete in between the opening. It is not unusual for cracks to appear in basement walls regardless of the type of wall you have.

We repaired a foundation wall which had an 8 ft long crack. Cracks in basement walls allow water to enter the basement which leads to mold and mildew growth. The injection process fills the crack from top to bottom from inside to outside. Use a wire brush check on amazon to brush both ends of the walls and then try a vacuum pump to suck out all debris in between the crack.

They re usually constructed by pouring concrete into metal or wood forms and then the forms are removed once the concrete has set up or hardened. If a crack between the wall and floor exceeds. Seal small cracks or gaps around pipes with a concrete patching compound. Mix the epoxy sealer.

Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside. There s also a stair step crack on each end of the horizontal crack and the wall is bowed in about 1 in.