Graduation Year
2007
Document Type
Thesis
Degree
M.S.
Degree Granting Department
Civil Engineering
Major Professor
Austin Mullins, Ph.D.
Keywords
Corrosion, Tensile, Stress, Piles, Prestress steel
Abstract
Corroded steel in concrete is a structural issue that plaques concrete structures in coastal regions. Traditionally corroded steel strength is calculated from a distributed area loss due to corrosion over the entire surface of the steel and reducing the capacity accordingly. In reality, corrosion attacks localized regions creating pits and reducing the cross section in a small region which amplifies the effects of corrosion. Stress concentrations at the corrosion pitting damage may further reduce the tensile capacity of the steel. A study of corrosion damage and strength associated with pitting damage can assist in understanding the ultimate tensile capacity of corroded steel strands, better correlations are needed to estimate actual strength of damaged steel. The focus of this thesis is on seven-wire prestress steel strands with various stages of induced corrosion. Each strand has been documented, profiled, and measured in order to correlate physical damage with ultimate capacity.
Scholar Commons Citation
Ostrofsky, David, "Effects of corrosion on steel reinforcement" (2007). USF Tampa Graduate Theses and Dissertations.
https://digitalcommons.usf.edu/etd/2311
