The purpose of this research is to evaluate the potential corrosion resistance, mechanical properties and uniformity of the SMI-316 SCÔ using laboratory tests. Based on the results of these tests, South Dakota Department of Transportation (SDDOT) may design, construct and evaluate a bridge deck reinforced with this Corrosion-Resistant Steel. All test results will be compared with those from epoxy-coated reinforcement and mild steel using the same protocols developed in SD2001-05 Evaluation of Corrosion-Resistant Reinforcing Steel. The research will provide information on the constructability and effectiveness of this Corrosion-Resistant Steel for use in bridge decks as well as performance, service life and cost-effectiveness data.
Findings: SMI-316 SC stainless steel clad reinforcement is recommended as a cost-effective direct replacement for epoxy-coated reinforcement. Cut ends of the bars should be protected with a system such as plastic caps filled with epoxy and the bars should be protected from damage to the cladding during bending operations.
MMFX Microcomposite reinforcing steel should not be used as a direct replacement for epoxy-coated reinforcement without the use of a supplementary corrosion protection system. Use of the material in its current form is not recommended for reinforced concrete bridge decks in South Dakota.