New for 2018! This NACE International state-of-the-art report contains information about materials that provide a corrosion-resistant alternative to plain carbon steel reinforcing bar (rebar). The report is intended for use by engineers when considering the use of alternative concrete reinforcement and post- or prestressing strand materials with higher corrosion resistance than that of conventional carbon steel alloys.
Materials that have actual, or potentially, wide commercial availability are emphasized in the report. Each material is briefly described and includes descriptions of the field and laboratory performance with attention to quantitative consideration of the parameters that determine durability relative to that of plain carbon steel bar. The report includes four tables with information such as common stainless steel designations for reinforcing bar, chloride threshold results for concrete specimens reinforced with stainless steels, and laboratory evaluation of corrosion performance of steel bars versus carbon steel bar. Throughout this report reference is made to pertinent, available standards.
Key words: black bar, carbon steel bar, carbon steel reinforcing bar, carbonation (of concrete), cathodic prevention, chloride threshold, coefficient of thermal expansion, concrete, concrete reinforcing steel institute, corrosion hydrogen embrittlement, corrosion macrocell test, corrosion propagation, dual polymer/zinc coated rebar, environmentally assisted cracking, epoxy-coated reinforcing steel bars, fiber reinforced polymers, galvanized steel, issues, potentiodynamic polarization scans, rebar, stainless steels, stainless steel clad rebar, stress corrosion cracking, TG 057, STG 01, water-to-cement ratio, water treatment systems.