DuPont Pioneer Beaver Creek Building 2, Johnston, IA
DE Fiberworks, Inc. - Concrete Fiber Reinforcement
563.340.7065

DuPont Pioneer Beaver Creek Building 2, Johnston, IA

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DuPont Pioneer Beaver Creek Building 2, Johnston, IA is an 180,000 square foot office/lab building. The facility, constructed by the Ryan Companies, is a two story structure that incorporates 80,000 square feet of laboratory space on the ground floor and 100,000 square feet of office space on the second floor.
Description

 

 

 

Forta Ferro & FRC FIB-300

 

 

DuPont Pioneer Beaver Creek Building 2, Johnston, IA is an 180,000 square foot office/lab building.  The facility, constructed by the Ryan Companies, is a two story structure that incorporates 80,000 square feet of laboratory space on the ground floor and 100,000 square feet of office space on the second floor.  The 80,000 square foot state-of-the art laboratory space on the ground floor utilizes FRC FIB-300 fibrillated micro-synthetic fibers at a dosage rate of 1.5 lbs./cubic yard of concrete.  The ground floor includes beautifully polished and stained floors.  The 100,000 square foot office space located on the second floor benefits from Forta Ferro, a macro-synthetic fiber system.  The Forta Ferro dosage rate is 4.0 lbs./cubic yard of concrete for the composite metal deck slabs as recommended by the Steel Deck Institute.  Central Iowa Ready Mix supplied the concrete, OPN was the Project Architect, and Shuck Britson was the Structural Engineer.

 

 

 

 

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Did You Know?

Concrete is widely recognized as an extremely versatile, cost-effective construction material?

 

Concrete is widely recognized as an extremely versatile, cost-effective construction material. Yet it is also beset with some drawbacks that are inherent to its composition.  By generally accepted engineering standards, concrete is relatively brittle and lacks ductility.  Intertwined with these problems is concrete’s propensity to crack in both its plastic (early-age) and hardened (long-term) state.  Early-age cracks are microscopic fissures caused by the intrinsic stresses created when the concrete settles and shrinks over the first 24 hours after being placed.  Long-term cracking is in part caused by the drying shrinkage that transpires over time.  In either case, these cracks can jeopardize the overall integrity of the concrete and not allow it to maintain – or possibly ever attain – its maximum performance capability.

 

This is the basic reason reinforcement in concrete is required.  Irregular cracks are unsightly and difficult to maintain but generally do not affect the integrity of the concrete.  Joints in concrete slabs are simply pre-planned cracks that are created by forming, sawing, or tooling.  Concrete slabs that are designed for serviceability typically use reinforcement such as deformed reinforcing steel bars (rebar) or welded wire fabric (WWF) to hold cracks tight.  The primary function for the reinforcement is to maintain aggregate interlock for load transfer and improve joint stability.  Rebar and WWR do not inhibit the formation of cracks, but if properly positioned provide reinforcement once a crack has developed.  Fiber reinforcement can provide the same function, is distributed throughout the cross-section of the concrete and distributes the stresses attributed to shrinkage throughout the panel making the joints much more stable. This distribution of fibers provides a totally reinforced cross-section of concrete and changes the way the concrete works.