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Foundation Shear Slide Repair

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Contractor and Engineering Resources
Case Studies
Foundation
Shear Slide Repair

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The most common cause of foundation movement is seasonal shrinking and swelling of expansive soils. The amount of soil movement is determined by the amount of expansive material and variations of its moisture content. When moisture content of expansive soil increases, the soil swells. When the moisture decreases during dryer months, the soil shrinks and is at its lowest moisture content, which allows the foundation to settle. During the wet months, the foundation will return to its desired location. This back-and-forth movement can result in foundation damage.

In this case, foundation wall moved 1.5 inches at bottom, had a 0.75 inch bow, and water leakage


Date: March 2009
Structure: CMU foundation wall
Location: Marion, Ohio
Contractor: AquaGuard, LLC

Project Scope:
35 ft. CMU foundation wall: experiencing 1.5 inch shear slide at bottom of wall with a slight .75 inch bow and water leakage.

Repair method
To reattach shear slide, 3 inch core holes were drilled through second course of blocks down and 12-18 inch sections of rebar were inserted. Then core holes and bottom course of blocks were filled in flush with wall.


9 Fortress Carbon Kevlar straps were then applied to wall. Interior drainage system was installed and the entire basement was painted to make for a very happy customer!!



Fortress Stabilization Systems - 1-800-207-6204






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