How To Fill Joints In Exterior Concrete Block Wall

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How to fill joints in exterior concrete block wall.

How to repair cinder block mortar joints. 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. Squeeze the caulk from your caulk gun so that the caulk fills the joint top to bottom and backer rod to the surface of the concrete block. Lift the plastic once a day and spray the wall with water from a hose.

Use a smooth even motion filling the crack flush with the surface beveling it if it s against the house. Apply concrete to any gaps in the blocks or mortar using a shovel. 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. Clean the joints with water.

It works perfectly as a concrete expansion joint sealant. Remove the plastic after three days. Mix up new mortar. 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.

Fill in the cracks or holes with concrete. I am bidding a job to turn a concrete block building into a dog boarding kennel. This thin steel once embedded in the mortar adds significant strength to long concrete block walls. This unique product is placed on top of a row of block in the horizontal mortar joints.

You can also used thin wire reinforcing for concrete block walls. This is to allow the walls to be hosed down when needed. Cover the patched area with a sheet of plastic and secure it to the wall with duct tape. You will need the following tools to start.