Fibrillated Microfibers

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Bridge Deck

Project Description:

In an attempt to add long-term durability values to a typically troublesome bridge deck application, the City of Philadelphia specified a heavy-duty fibrillated network fiber reinforcement. Over 180 cubic yards of concrete were reinforced with FORTA® ULTRA-NET® fiber at a dosage rate of 1.6 lbs. per cubic yard (1.0 kg/cubic meter). The 2-1/2" long FORTA® ULTRA-NET® fiber mixed easily and uniformly, was pumped into place, and was used in conjunction with the primary/structural steel in this May 1996 project. Surface treatment was a tined/textured surface.

Project Photos: Click on a photo for larger view.

• Owner: City of Philadelphia, PA
• Specifier: City of Philadelphia, Department of Streets — John F. Lutz, Chief Bridge Engineer
• Ready-Mix Producer: JDM Materials, Huntingdon Valley, PA

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