Date of Last Revision

2019-04-29 14:20:55

Major

Corrosion Engineering - Cooperative Education

Degree Name

Bachelor of Science

Date of Expected Graduation

Spring 2019

Abstract

Stainless steel rebar is one of the most corrosion resistant reinforcing methods for concrete structures. Stainless steel is used for its chromium content and its ability to form a passive oxide corrosion resistant layer. The presence of chloride is one of the largest attackers of this passive film and able to penetrate concrete due to its porous characteristics. This study evaluates the mechanical performance of different stainless steels relative to their changing environments. It is expected that as chloride concentration values increase, mechanical properties will decrease. This will be tested by performing tensile tests on stainless steel rebar sample that is enclosed in a galvanic cell. Electrochemical tests such as Linear Polarization Resistance and Electrochemical Impedance Spectroscopy will also be performed during the tensile test to examine the relationship during this time. To this point, only results from the AISI 316 SS have been completed, showing that the 8% chloride concentration solution performed nearly 7.7% worse than the blank sample during mechanical tensile tests. An accurate relationship between mechanical properties and environment allows for more accurate life cycle costing analysis of materials during construction.

Research Sponsor

Dr. David M. Bastidas

First Reader

Dr. Hongbo Cong

Second Reader

Ulises Diaz

Included in

Engineering Commons

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