How To Fill A Big Hole In Concrete Wall

An ideal patch to use for both purposes is hydraulic cement which expands to fill cracks and holes as it dries.

How to fill a big hole in concrete wall.

Watco concrex vertical is specially formulated to repair damaged concrete pillars sills lintels beams render and stonework. Spread a layer of patch mixture over the. Before attempting to fill a hole clear out loose concrete and other debris. Remove loose material from the hole in the wall by probing it with the tip of a.

Wait for about 10 to 15 minutes or until it gets sticky. Mix it up to the consistency of peanut butter and fill what s left. Remove loose material with a wire brush and blow out any remaining debris. The guys at home depot had a lot of fun lamenting the fact that the hole existed to begin with and then suggested that i build a mold on one side of the wall and fill it in with a pour of concrete.

You ll want to fill so the foam is more or less even with the inside of the block. Apply a coat of concrete adhesive to the hole. Repairing the holes in a concrete wall involves undercutting the hole. Wet the surface and apply a concrete bonding agent apply the bonding agent inside the hole with a paintbrush.

Use a cold chisel and hammer to make the space wider underneath the hole. Use the corner of a trowel or your finger to pack the compound into the hole making sure it is completely full. Concrete takes time to cure so keep the patch moist for several days for a stronger fix. Then mix the mortar fill in the hole and level it to blend it in with the surrounding structure.

Apply at any depth without n. The stuff expands pretty much so start at about a 50 fill and see where that gets you.