How to Repair Concrete Masonary Brick

Examine the masonry brick to see what types of repairs will need to be done. Check for cracks in the brick and chunks or pieces of the brick missing. Verify that the brick is still properly secured to the other bricks and is not loose in any manner. If there is any damage, the best route to take is to remove the brick and replace it with a new one.

Drill holes into the brick with a masonry bit to make removing the brick easier. Chisel out the damaged brick by using a baby sledgehammer to drive the chisel into the seam where the brick is joined to the other bricks. Chisel along the entire seam, hitting the sledgehammer on the chisel every few inches along the seam. Remove the broken off pieces with a rag and once the entire brick has been removed, dust away any debris from the brick that may be in the way. Moisten the surface of the opening with a wet rag.

Pour the mortar mix into a large tub and add water to the tub. Mix up the mortar in the tub and spread the mortar with a trowel. Lay on about a half inch of mortar with the trowel along the bottom of the opening where the brick was removed. Spread mortar along the top and sides of the new brick.

Set the brick into the opening and adjust it so all the joints are even with the rest of the wall. Allow it time to set. This may take up to 24 hours so coming back to finish the next day is recommended. Chisel out the joints so it is uniform throughout the entire area of the wall. Inspect the wall to make sure everything is uniform.