Horizontal Stem Wall Fractures Explained
Horizontal Stem Wall Fractures Explained
Horizontal stem wall fractures are caused by the steel rebar corroding within the structure. When corrosion or rust forms on steel, the initial reaction is a growth or expansion. This growth fractures the surrounding concrete causing failure.
Check out the Rust Wedge Exhibit at the Exploratorium in San Francisco.
It is important to repair fractured stems because the stem wall is part of your foundation. The exterior walls of your home are built on top of the stem wall which sits on the footing. (See Picture Below)
At the ends of the fractures are good steel. This is food for the corrosion, and it will continue to grow.
Further, it is important to have the fractures repaired by a qualified contractor. Just filling the fracture does nothing to restore the structural integrity of the stem wall. The process we use makes the stem wall stronger and better protected than when it was brand new. We get back to the corrosion on the rebar and either clean it back to white steel or replace it with new steel. We utilize epoxies to prime all the surfaces before patching back. This acts as both a bonding agent and a rust inhibitor.
For further information, please feel free to contact me at the office 480-219-3679 or directly on my cell phone at 602-403-7200.