Propex Concrete Systems' Fibermesh® 650 Receives UL Classification for Use as Alternate...

Propex Concrete Systems, the market leader in supplying fibers for secondary concrete reinforcement to the construction industry, announced that its Fibermesh® 650 synthetic macro-fibers have received classification from Underwriters Laboratory (UL) for use in steel deck construction as a replacement

The classification means Fibermesh 650 has undergone a full-scale fire test by UL at 100 percent of design capacity of the deck and has received a 1-, 1.5-, 2-, 2.5-, and 3-hour fire rating for D700, D800 and D900 Series Floor-Ceiling Designs (fibers added to concrete mix at a rate up to a maximum of 5.0 pounds of fiber for each cubic yard of concrete). Additionally, Fibermesh 650 complies with ANSI/SDI Code Provisions for fibers to replace welded wire fabric specified for temperature and shrinkage reinforcement in composite metal deck applications. Fibermesh 650 is a specially engineered alloy polymer macro-synthetic fiber used as an alternative to traditional steel for concrete secondary reinforcement. Featuring Propex's patented e3® fiber technology, the fibers are manufactured to an optimum gradation and highly oriented to allow greater surface area contact within the concrete resulting in increased interfacial bonding and flexural toughness efficiency. The engineered fibers help provide superior long-term durability, including impact, abrasion and shatter resistance. In addition, Fibermesh 650 is designed to reduce both the formation of early-age plastic cracking and drying shrinkage and temperature cracking that can occur over time — making it well suited for a variety of applications. These include slab-on-ground applications, composite metal decks, and exterior flatwork such as driveways, sidewalks, overlays, parking areas, roads, and interstates.