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Date 07/05/2009

Innovative Bridge Built with Ductal Ultra-High Performance Concrete Wins an Iowa Quality Initiative Structure Award

 

Buchanan County, Iowa

Lafarge North America Inc.

 

The Jakway Park Bridge in Buchanan County, Iowa can certainly be called innovative.

 

It is the first North American highway bridge built with a new generation of ultra-high performance concrete (UHPC) pi-girders, the first highway bridge to incorporate batching of UHPC in a ready-mix truck and the second in North America and Iowa built with UHPC girders.

 

Lafarge's ultra-high performance concrete, "Ductal®", was used for this project, providing a combination of superior properties including ductility, durability, aesthetics and strength (compressive strengths up to 30,000 psi and flexural strengths up to 6,000 psi).

 

Recognizing this significant step towards "The Bridge of the Future", the project has received an "Iowa Quality Initiative Structures Research Merit Award" from the Associated General Contractors of Iowa and the Iowa Department of Transportation (presented at an April 1st awards luncheon, in conjunction with the "Structural Design/ Construction Quality Workshop").

 

The bridge -- a combination of cast-in-place, simple span slabs with a center span consisting of a series of precast UHPC pi-girders, was designed by the Office of Bridges and Structures at the Iowa Department of Transportation and the Bridge Engineering Center at Iowa State University. The pi-girders were produced at Lafarge's precast operations in Winnipeg, Manitoba, Canada.

 

Funding was granted through the TEA-21 Innovative Bridge Construction Program, managed by the Federal Highway Administration (FHWA), to construct a highway bridge with an optimized UHPC pi-girder section.

 

The bridge opened to traffic on November 26th, 2008 and an official ribbon cutting ceremony took place on April 15th, 2009.

 

Contact:

Vic Perry, Lafarge North America

403-292-9423

 

or

 

Lisa Birnie, Lafarge North America

403-292-9426

INFORMATIONS COMPLÉMENTAIRES

Leader mondial des matériaux de construction, Lafarge occupe une position de premier plan dans chacune de ses activités : Ciment, Granulats & Béton et Plâtre. Avec 78 000 collaborateurs dans 78 pays, le Groupe a réalisé en 2009 un chiffre d'affaires de 15,9 milliards d'euros.


En 2010, pour la sixième année consécutive, Lafarge est répertorié dans la liste des 100 multinationales les plus engagées en matière de développement durable. Doté du premier centre de recherche au monde sur les matériaux de construction, Lafarge place l'innovation au cœur de ses préoccupations, au service de la construction durable et de la créativité architecturale.

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