Concrete Admixtures - Project Profiles:
Columbia Colstor Fish Processing Plant
Fish Processing Plant Floor
Woodland, Washington, USA
Bradford Conrad Crow Engineering Co.
Performance Contracting, Inc.
When the Columbia Colstor Fish Processing Plant needed to build an addition to its existing facility, they needed a floor that would make the grade literally.
That's because the project required slab-on-grade construction. As John Bradford, the project's engineer explained, "the building's geometry and use as a cold storage facility required sloping slabs, creating challenges and difficulties to joint the floor." The challenge was that controlling cracking in slabs on grade is commonly handled through the use of control joints but fewer joints means lower initial costs from cutting and filling these joints, lower future maintenance costs as the joints wear, and easier cleaning in a food processing facility.
The solution was a mix that included Eclipse® Floor shrinkage reducing admixture, optimized to reduce drying shrinkage and allowing the control joints to be spaced farther apart. Plus the mix included MIRA® 70 mid-range water reducer for more workable concrete during placement. The result? "The concrete mix was very workable with Eclipse Floor. There were no drying shrinkage cracks," said contractor Greg Whitaker. "I feel very confident in the product's performance and have no hesitation in recommending it."