Source: ASTM International, West Conshohocken, Pa.
ASTM A1094/A1094M, Specification for Continuous Hot-Dip Galvanized Steel Bars for Concrete Reinforcement, details corrosion protection for zinc- or zinc alloy-coated rebar. “Galvanizing is a proven and effective way to protect reinforcing bar from corrosion, as it provides both barrier and galvanic protection to the steel substrate, [and] increases the chloride threshold,” says GalvInfo Center Director Gary Dallin.
In addition to protection, the unique fabrication properties of the bars A1094 covers will help minimize installation and long-term maintenance costs, he adds, underscoring the standard’s usefulness to precast concrete producers; state and federal agencies overseeing bridge and road infrastructure; engineering and contracting firms; manufacturers seeking to confirm that product parameters meet the specification; and, laboratories weighing product testing requirements.
“According to the World Corrosion Organization, the cost of corrosion is currently in the same order of magnitude as the cost to produce and distribute food worldwide,” says Dallin. “This standard will make a positive impact in reducing these huge costs while improving the sustainability of global infrastructure.”
A1094 was developed under ASTM Committee A01 on Steel, Stainless Steel and Related Alloys, which convenes next in Tampa, Fla., during November Committee Week. Contacts: (technical) Gary Dallin, 905/315-7443, [email protected]; (staff liaison) Kevin Shanahan, 610/832.9737, [email protected]