CONCRETE SUMP RESTORATION

PROJECT CASE HISTORY  August 1995 
Monitor Sugar Company 
Bay City, Michigan 
Sewer Pump Station Restoration  - Concrete Coating 

Project

Reconstruct, repair and restore a sewage pump lift station sewer tunnel and sump -- 55' long x 3' wide x 3' high tunnel, 10' x 15' x 15' sump. Create new bottom with crushed stone, spray ReNew Flex Spray® over crushed stone to create liner bottom on Geotextile fabric repair concrete sump wall, tunnel walls and install pressure relief valve through tunnel walls. The existing concrete was severely worn and cracking through the beet pulp waste and normal sewer waste. Very aggressive existing and operating conditions. This was a controlled confined space entry. This work was performed through the engineering support of MacMillan and Associates of Bay City, Michigan. 

Preparation and Coating

• Apply EC 655 Heavy Duty Degreaser to surface to be coated. Power wash clean with 3000 psi water. 
• Sand blast entire surface, vacuum debris. 
• Repair existing concrete cracks, deterioration, install relief valves per MacMillan and Associates' design and direction. 
• Create new sump bottom with crushed stone and Geotextile Fabric. 
• Prime concrete surface to be coated. 
• Apply ReNew Flex Spray® to primed concrete and geotextile surfaces at rate of 45 to 75 mil thickness. 

Results

This entire project had to be completed 4 days. Once the project was completed, it would go into immediate use. One of the determining factors for consideration of this project was the down time for repair. With ReNew Flex Spray®'s ability to cure in 15 seconds, we were able to assure the least amount of downtime as well as a restoration containment lining system that will perform and last for years to come.