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Concrete Spalling in Virginia

Posted by: Soil & Structure on Jan 26, 2010

Tagged in: rebar corrosion , ground shifting , exposure to corrosive elements , concrete spalling

Here's a picture of some significant concrete spalling on the interior face of a foundation wall of a older home in Purcellville, VA. This is the result of decades of water infiltration through the wood framing and plywood covering the access panel. This problem can be fairly easily solved by simply installing a new window that is properly sealed. The concrete wall itself is still intact and shows no other signs of damage.
Spalling can also be the result of the freeze/thaw cycle, ground shifting, rebar corrosion, exposure to corrosive elements, or improper installation of concrete during the original construction. Materials used for this type of repair include two-component, epoxy-based mortars that utilize silica and/or aggregate, polymer-modified cements or hydraulic cements, as well as additional materials specific to the customer’s repair needs.

Our recommendation to the homeowner was to install a new, properly sealed window and repair the concrete face as described above.

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