Gerdau Ameristeel Launches Next Generation in Reinforcing Steel Corrosion Protection

Gerdau Ameristeel announced today the introduction of a new patent pending dual coating process for concrete reinforcing steel. This process involves applying a thermal-bonded zinc inner layer combined with a thermal-bonded polymer outer layer to a conventional reinforcing steel bar. The innovative process and product, called ZBAR™, provides extra protection against corrosion.

“We are excited to introduce a new product for the construction industry that will help protect and extend the life of concrete structures,” said Neal McCullohs, Vice President of Downstream Operations for Gerdau Ameristeel.

ZBAR™ has been evaluated per ASTM A944, is readily available and can be substituted for any reinforcing steel product. ZBAR™ consists of using A615 or A706 reinforcing steel bars combined with two powerful corrosion barriers, each with uniform thickness.

“Lab results show that a concrete structure using ZBAR™ has more than sufficient resistance to chloride-induced corrosion for an expected lifetime of 100 years,” states Dr. Gerardo Clemena, Ph.D., principal research scientist for the Virginia Transportation Research Council.

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