Patching Concrete Cracks In A Wall

Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside.

Patching concrete cracks in a wall.

Several masonry patching products such as hydraulic cement do an adequate job of filling cracks in concrete walls. Before you start to repair the crack use any combination of a wire brush vacuum or power washer to remove any oil dirt or debris from the concrete wall surface and from inside the crack. The injection process fills the crack from top to bottom from inside to outside. If a crack between the wall and floor exceeds.

We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. Item 102612 model 112620. Clean out the debris with a stiff fiber or wire brush. Repair a foundation crack with an epoxy sealer photo geoffrey gross.

Concrete block walls in particular can form cracks for a number of reasons. Repairing a foundation crack of this nature is similar to repairing other non structural cracks. Fill it with a caulk suitable for use on concrete. Using a chisel make the crack wider at the bottom than the top.

Quikrete 20 lbs hydraulic water stop cement. For big or deep cracks use a concrete mix or patching compound that contains gravel. Fix concrete cracks in 8 steps step 1. If you have a lot of cracks you may prefer to use dry concrete mix or concrete patching compound instead.

Smaller cracks less than 1 4 inch wide can be repaired with a concrete caulk or liquid filler. Patching compounds typically are mixed with water and applied with a trowel. Wet the surface and apply a concrete bonding agent. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit about 60.

A mixer paddle attached to a heavy duty low rpm drill makes mixing easier. Put the mix or compound in a large bucket and add water as directed on the label. However these products can fail after a few years if your foundation or retaining wall continues to move slightly leaving you with little choice but to chip them out and start all over again. Some cracks are just annoyances while others are symptoms of a larger problem and with a little bit of know how you can tell the difference.

The only way to repair foundation wall cracks successfully is by the injection process. Wide cracks in concrete are best patched and sealed with a concrete patching compound. Pack a small amount of anchoring cement into the hole. Do this by enlarging the crack using a concrete chisel and a hammer.