Specialty Fibers

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Pervious Pavement

Project Description:

A pervious concrete slab was placed in late March 2009 outside the Thomas Concrete of Georgia quality-control laboratory and offices in Atlanta, GA. The slab was intended as a light-traffic pad to use as an example of pervious concrete technology for local owners, contractors and specifiers. The pervious pad entailed 45 cubic yards of concrete, and was placed on a 6" thick #57 limestone base to facilitate water percolation and run-off. The FORTA® GREEN-NET® fiber, made from 100% recycled polypropylene, was used at a dosage of 1.5 lbs./cu. yd. to add stability during placement and to toughen the resulting hardened pervious concrete. The GREEN-NET® fiber mixed very quickly and uniformly, was not significantly noticeable on the surface finish, and did not negatively affect the porosity of the resulting pervious pavement

Project Photos: Click on a photo for larger view.

• Application: Pervious Concrete Slab-on-ground
• Concrete Supplier: Thomas Concrete
• Contractor: PCI Systems LLC, Woodstock, GA, Dale Fisher
• Slab Dimensions: 60 ft. x 30 ft. x 6 in. thick
• Fiber Reinforcement: FORTA® GREEN-NET® 1-1/2" long, 1.5 lbs./cu. yd.
• General Mix Design: Approximately 2,600 lbs. coarse-aggregate (#89 stone), 550-600 lbs. Portland cement, chemical admixture, color/cure additive

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