How To Repair Flaking Concrete Wall

I agree with the engineer who looked at a picture of your foundation walls.

How to repair flaking concrete wall.

Choose a concrete resurfacing product. The concrete should be mixed thickly enough to not sag when placed onto the vertical surface of the wall. If the wall is badly damaged set a steel screen in the scratch coat to provide a solid base. Unsound or flaking concrete can be removed by using a hammer and chisel or with a masonry grinding disk and a portable drill.

Apply a scratch coat to deep or ragged spalls rather than laying on a finish coat of varying thickness. Apply a patching compound 6 the home depot with a putty knife as needed. This occurs because of freezing and thawing of water around your foundation or by frequent high pressure washing or sandblasting. Mix one part concrete resurfacer compound with seven parts water into a mixing container and mix it into paste with your drill and paddle mixer.

Step 3 fill in any large holes or imperfections with the compound and then level the compound flat with the surface of the foundation wall with the trowel. Allow 24 hours drying time before moving on. Any damage should be fixed before you repaint. Sometimes the masonry and concrete around your home deteriorates also known as spalling.

Picture frame the section by nailing 1 2 in. Add water until the mixture is the consistency of thick paint then brush it on the damp concrete. Use a drill with a paddle bit to mix the concrete. Mix one part type 1 portland cement and one part fine sand by volume.

Establish a smooth surface. Spalling concrete can look like round or oval depressions along surfaces or joints. Once the peeling paint is removed you might be left with cracks or holes in the wall. Spalling tends to be most common in cold climates when de icing chemicals are applied or.

There may not be any easy way to repair this problem but if you let it go on too much longer the consequences could be much more serious. Mix a batch of concrete in a large bucket. Specially formulated to restore lackluster concrete resurfacing products like rapid set newcrete available from the home depot make it quick and easy for. Use a permeable concrete that allows the concrete to breathe and prevent further spalling from trapped water.

It s not uncommon for concrete contractors and builders to receive calls from customers asking why their concrete is flaking and pitted and how the problem can be solved. Clean the surface of the damaged area by removing any loose material such as dirt oil or grease and unsound or flaking concrete. Plywood strips flat to the concrete along the control joints. Step 2 scrub and clean the surface of the repair area with a stiff bristle brush.

Smooth and let dry according to the manufacturer s directions.