The Heritage Cooperative Agricultural Campus and Research Farm in Marysville, Ohio is a state-of-the-art facility that is built on a 277-acre site. It includes an express unit grain terminal, which holds 1.5 million bushels of grain; a 30,000-ton dry fertilizer warehouse; and a 10,000-ton liquid nitrogen fertilizer storage with distribution services 24 hours a day, 7 days a week. Over 20,000 cubic yards of concrete has been delivered with almost all of the concrete using slag cement. Concrete include 5600 cubic yards for slip formed silos that took 7 days to complete, working 24 hours per day.
The slip formed walls were on a timer to move 1 in. every 4-6 minutes and required consistent stiffness and set time to maintain that pace of construction. The slag cement concrete mixture actually allowed the contractor to speed up the slip form construction process. Prior to construction, the owner was concerned that they would have to paint the silos to achieve desired uniformity in color. However, the slag cement concrete mixture provided an attractive, uniform, light color without painting. Use of slag cement, a recycled material, enabled achievement of required workability, strength, durability, and appearance at a reduced environmental footprint.
Project credits: Heritage Cooperative, Owner; Hogenson Construction Company, Architect; Sunfield Engineering, Engineer; Hogenson Construction Company, Contractor; Ohio Ready Mix, Inc., Concrete Supplier; St. Mary’s Cement Inc. (U.S.), Slag Cement.