Performance of corrosion-resistant reinforcement in concrete

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University of New Brunswick
The corrosion of embedded reinforcement is the number one cause of deterioration of concrete structures in North America. Of the many strategies to increase the service life of such structures, stainless steel reinforcement has proven to be one of the most effective but most costly solutions. A need has arisen for more cost-effective corrosion-resistant reinforcement options. Unfortunately, there are few data that compare the performance of these steels with accepted standards. This thesis presents the results of a study conducted to determine the relative performance of several grades of reinforcing steel in concrete, and compare them to accepted standards. The performance of these reinforcement options was evaluated in terms of corrosion potential and corrosion rate. The steel types under study include: plain carbon-steel, MMFX, and the 316LN, 304, 2205 and XM-28 grades of stainless steel.