How To Fix A Concrete Block Basement Wall Diy

There s also a stair step crack on each end of the horizontal crack and the wall is bowed in about 1 in.

How to fix a concrete block basement wall diy.

There are two materials steel and carbon fiber that are commonly used to stabilize these walls and each has its advantages. If you only had the stair step cracks you could go ahead with your basement finish work because that type of crack is a normal sign of settling. Place two large cement blocks tightly against the wall underneath the area to be patched. To repair a leaking concrete block wall in a basement you ll need concrete epoxy cement to make a waterproof seal.

Lay a scrap board over the blocks to provide a surface that will catch any cement patch that falls so it can be scraped up with a trowel and reused rather than ruining the surface below the wall. Tape a one foot by one foot square of plastic sheeting plastic kitchen wrap will do to the concrete wall in your basement with duct tape and leave it in place for 24 hours. Hose the wall down or scrub it with a washcloth then use a metal file to smooth out any rough edges. If you notice any cracks in the wall then they will need your attention first.

You might also notice that your basement walls are bowed. To repair small cracks or holes in cinder block walls you can use concrete. You can t handle this cracked wall by simply filling the crack and finishing off the basement. The basic method of repair for a bowed concrete block wall is to stabilize it that is to stop any further movement and increase the strength of the wall to resist lateral pressure.

Concrete epoxy cement expands it dries to make a seal that can withstand a waterspout of several hundred pounds of pressure. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60. First clean any parts of the wall that you plan to repair so the cement or mortar adheres securely. The first thing you need to do is tear down anything that covers your basement wall so that you can examine the problem.

Use an epoxy injection system for basement wall crack repair we repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall.