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ICRI 2009 Project Award Winner
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Award of Excellence: Parking Structures Category

440 West Condominium Parking Garage Repairs
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Clearwater Beach, Florida

Submitted by The Euclid Chemical Company

440 West Condominium

440 West Condominium Associates
Clearwater Beach, Florida

Project Engineer/

Karins Engineering 
Group, Inc.
Sarasota, Florida

Repair Contractor
Restocon Corporation
Tampa, Florida

Material Supplier/

The Euclid Chemical Company
Cleveland, Ohio

This underground parking structure, constructed in 1975, had never undergone any concrete restoration in its 33-year existence. Open exposure to a salt-rich coastal environment, exacerbated by cracking and inadequate coverage over steel reinforcement, created large-scale corrosion damage throughout. The stalactites growing from cracks where water had slowly but constantly leaked through the structure’s ceiling was the most obvious sign to the owners that the structure may already have become unsafe. 

During high tide the basement floor sits below water level. The humidity within the garage area routinely reaches 100%. A pattern of small holes and honeycombed areas of the concrete visible everywhere suggested elevated porosity and resultant increased corrosion activity levels. 

Nondestructive half-cell potential measurements were performed providing valuable information of the corrosion risk of the slab’s reinforcing steel. ICRI Technical Guidelines No. 310.1R-2008, 310.2-1997, 320.1R-1996, and 320.2R-2009 were all used during the project. The majority of the repairs for the garage would be overhead repairs. The contractor used a robotic tool support arm to aid in overhead chipping. The machine provided a significant technological advantage. A dry-mix method of shotcrete was employed, allowing the nozzleman to instantaneously adjust the water content as needed. A microsilica-modified shotcrete product was used to increase densification of the finished product. 

Despite the potentially fatal combination of adverse environment, tremendous volume of repairs, and limited site access, the repair project was completed on time and was a success. By using state-of-the-art technology, advanced materials, and old fashioned attention to detail, 440 West Condominium received a cosmetic overhaul and repairs that will keep the structure looking great for years.

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Phone: +1 651-366-6095

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