Patching Concrete Cracks In A Wall

First scrub the crack clean of any loose concrete paint or old filler using a wire brush.

Patching concrete cracks in a wall.

Concrete wall crack repair in 8 steps step 1. Step 1 widen the crack using a chisel and hammer to a minimum of inch and break away any deteriorating concrete the edges of the crack should be vertical or beveled in an inverted v. 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. The injection process fills the crack from top to bottom from inside to outside.

It covers cracks up to 1 2 inch wide. Use a nail to align injection points. Dampen the area around the crack and then trowel on the mix. Repairing a foundation crack of this nature is similar to repairing other non structural cracks.

10d finishing nails partway into the crack spaced 12 in. Do this by enlarging the crack using a concrete chisel and a hammer. Mix the two part epoxy. The crack must be prepared so that the sealant will adhere to the crack surfaces.

The only way to repair foundation wall cracks successfully is by the injection process. Tubes of liquid concrete repair lcr a viscous epoxy that comes in a caulk type cartridge and seven plastic injection ports that deliver the lcr deep into the crack. Before you start to repair the crack use any combination of a wire brush vacuum or power washer to remove any oil dirt or debris from the concrete wall surface and from inside the crack. Fill the crack with patching mix also know as vinyl concrete patching mix is made from vinyl portland cement and sand.

Quikrete concrete repair or quikrete self leveling polyurethane sealant may be used. There s enough material in each kit to repair a 1 16 in wide x 8 in deep x 8 ft long crack.