Fixing Concrete Block Wall

If the crack is wider than 1 8 inch it should be sealed.

Fixing concrete block wall.

The easiest fastest cheapest solution to repairing the cinder block was using poured concrete and then painting the entire wall to mask the patch. To do this you can t just spread new concrete onto the old blocks like cake frosting. To repair small cracks or holes in cinder block walls you can use concrete. Cracks between 1 8 and of an inch often result from house settling or concrete shrinking within a few months after construction and so.

In this video i ll show you a very simple process that i like to use to fix holes between the blocks where the mortar is missing in my garage. We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. Where the crack runs through a brick or a concrete block use a brick chisel angled into the crack to widen and undercut the break. Hose the wall down or scrub it with a washcloth then use a metal file to smooth out any rough edges.

Additional time depending on extent of damagewearing safety goggles begin by cleaning all crumbling brick and mortar from the crack with a cold chisel and sledgehammer. First clean any parts of the wall that you plan to repair so the cement or mortar adheres securely. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair. About 3 to 4 hours for cleaning and initial filling.