Concrete Lifting and Leveling Case Studies: Filling the Void at Cureleaf Dispensary
Challenge
Filling the Void at Cureleaf Dispensary.
Contacted in March 2023
Job completed in June 2023
What seemed like a simple basement leak repair turned into a structural conundrum. On the building's second level, the slab-on-grade (SOG) was floating with an ominous 18-inch void underneath.
Background: The project began with the intention of fixing a basement leak. However, during the plumbing work, a substantial void was uncovered beneath the concrete slab. The void, with no signs of stress, was an unexpected find. The situation necessitated action, but it had to be done with utmost care to avoid damaging underground utilities or vital mechanical and electrical ductwork/conduits.
Challenge: The primary challenge was clear – fill the substantial void under the slab without causing any collateral damage. The task was to inject PolyLEVEL, a two-part high-density polyurethane foam system, with a total weight of 4000 pounds. This solution aimed not only to fill the void but also to protect the slab from future damage.
Objectives: The objectives were straightforward. First, inject PolyLEVEL to fill the void and prevent future slab damage. Second, ensure that this is achieved without disrupting the normal operations of the building.
Solution
Solution: The solution was meticulous and required a well-thought-out plan. It involved drilling a series of small holes throughout the store to inject PolyLEVEL and fill the void. To prevent any operational disruption, the job was scheduled for nighttime. The steps included:
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Layout and marking of injection locations
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Drilling 3/8-inch holes through the slab
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Installation of injection ports
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Injection of PolyLEVEL material to fill voids and stabilize and lift slabs as necessary
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Removal of injection ports and filling of access holes with suitable grout material
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Comprehensive cleanup of the work area
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Continuous monitoring of slab movement during installation to ensure slab stabilization
Results: The endeavor was a resounding success. The voids were efficiently filled with PolyLEVEL, and crucially, no structural damage occurred during the process. The building's integrity remained intact, and the voids were stabilized.
Conclusion: The voids beneath the building's second level were filled and are holding securely in place. The company behind this endeavor is delighted with the results, knowing they have not only solved an unexpected structural problem but also ensured the building's future stability.
This case exemplifies the power of innovative solutions and meticulous execution when faced with unexpected challenges in the construction and maintenance of commercial spaces.
