How To Fill Joints In Exterior Concrete Block Wall

Cover the patched area with a sheet of plastic and secure it to the wall with duct tape.

How to fill joints in exterior concrete block wall.

This is to allow the walls to be hosed down when needed. It works perfectly as a concrete expansion joint sealant. Clean the joints with water. This thin steel once embedded in the mortar adds significant strength to long concrete block walls.

Safety goggles cold chisel hammer masonry caulk wire brush mortar mix. I am bidding a job to turn a concrete block building into a dog boarding kennel. You can also used thin wire reinforcing for concrete block walls. Fill the crack with urethane caulk similar to what you would use for driveway caulk.

Fill in the cracks or holes with concrete. Use a smooth even motion filling the crack flush with the surface beveling it if it s against the house. Part of the project is to fill the mortar joints so as to make a smooth wall surface that can be coated with an epoxy paint. Fill the holes and cracks as deeply as you can then scrape the top over with a trowel so the concrete can patch the wall together evenly.

How to repair cinder block mortar joints. Run the entire bead and then using your spray bottle filled with solvent or water depending upon the type of caulk you selected wet your finger and draw it down the joint to smooth and clean any excess. Apply concrete to any gaps in the blocks or mortar using a shovel. Lift the plastic once a day and spray the wall with water from a hose.

Remove the plastic after three days. This unique product is placed on top of a row of block in the horizontal mortar joints. You will need the following tools to start. Mix up new mortar.