We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall.
How to straighten a concrete wall.
To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60.
The injection process fills the crack from top to bottom from inside to outside.
The general rule of thumb for a poured concrete foundation wall is 30 of the wall thickness.
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.
Step 1 clean and prepare the cracked area 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 only way to repair foundation wall cracks successfully is by the injection process.
If the wall is cracked or if it is moving inwards then you can use hydraulic cement to fill the voids.
The most direct method is to support the house with a beam and post jacks remove the damaged wall section and replace it with fresh block and mortar.
Use an epoxy injection system for basement wall crack repair.
Then you ll need to install a footing.
Drains should be laid behind the foot of the wall to move water away before pressure.
This of course should only be done after making repairs to the damaged part of your walls with concrete check on amazon.
The crack must be prepared so that the sealant will adhere to the crack surfaces.
A ten inch thick foundation wall can be stabilized with inward movement up to three inches.
Wash the walls with an acidic solution check on amazon to neutralize the salt completely and allow to dry for a few hours.
Hydraulic cement is a very useful material which is available from pretty much any hardware store.