April 02, 2004
Carbon Fiber Concrete Reinforcing
Precast concrete technology replaces steel with carbon fiber to produce thinner panels, Building Design & Construction, 02-02, reports on the use of carbon fiber reinforcing in wall panels and double tees to produce precast units that are up to 66% lighter and one-third thinner than conventional units. The reduced weight and size of these units can contribute to cost savings in transportation, erection, and the building superstructure.
According to the article, primary reinforcing in the precast units is steel, while a 1 mm (0.04 inch) high-strength, resin-bonded carbon fiber grid is used for secondary and shear transfer reinforcing. The carbon fiber reinforcing requires only 1/4 inch of concrete cover, compared with 3/4 inch to 3 inches of cover required for conventional steel.
More Information
Altus Group, CarbonCast Brochure
April 2, 2004 in 13 Concrete Construction, 15 Precast Concrete Framing Systems, 20 Cladding with Masonry and Concrete | Permalink | Comments (0)
March 10, 2004
Metal Stud Masonry Connector
FERO Corporation is advertising its Side Mounting Rap-Tie masonry anchor for steel stud backup systems. According to the manufacturer, advantages of this anchor design for improved performance with steel stud backup systems include:
- The anchor fastens into the side of the steel stud, rather than through the stud's face, putting the fasteners in shear rather than withdrawal.
- Voids in the anchor strap are reduce thermal bridging.
- Optional integrated insulation supports provide for a continuous insulation layer exterior to the steel stud framing.
Ties are available manufacturerd from hot-dip galvanized steel or stainless steel.
March 10, 2004 in 08 Brick Masonry, 20 Cladding with Masonry and Concrete | Permalink | Comments (0)
