Dalzell Field, Dubuque, IA
DE Fiberworks, Inc. - Concrete Fiber Reinforcement
563.340.7065

Dalzell Field, Dubuque, IA

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Dalzell Field, Dubuque, IA is the newly renovated main outdoor competition facility for Dubuque’s two public high schools – Dubuque Senior and Dubuque Hempstead. HPS 950, a blended macro/micro synthetic fiber system was included at a dosage rate of 5.0 lbs./cubic yard in all concrete for the walkways and sidewalks in and around the new stadium and running track.
Description

 

 

 HPS 950  Concrete Fibers

 

 

 

 Dalzell Field, Dubuque, IA is the newly renovated main outdoor competition facility for Dubuque’s two public high schools – Dubuque Senior and Dubuque Hempstead.  HPS 950, a blended macro/micro synthetic fiber system was included at a dosage rate of 5.0 lbs./cubic yard in all concrete for the walkways and sidewalks in and around the new stadium and running track.  BARD Materials was the ready mixed concrete producer, Straka-Johnson was the Project Architect and Portzen Construction was the Lead Contractor.  The New Dalzell Field was completed in April of 2013 at a cost of approximately 10.5 million.

 

 

 

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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.