Author(s): AGUSTINO A. JOHN LESTER, ALONZO R. JED ADRIAN,BRAGA J. JOSE MIGUEL,CUSAY A. ROGELYN, FERRER M. AJ, I
Adviser: ROWENA P/ROSELO, M.Eng. IP Coordinator, BSCE Course Adviser, CE Project 2
Year: 2024
Community: College of Civil Engineering and Architecture
Abstract: ABSTRACT This experimental research, titled "Comparative Study on the Performance of Coated and Uncoated Rebars," uses a quantitative approach. The bond strength and corrosion rate of grade 33 steel rebars were analyzed using data from pullout and salt spray tests. As for the salt spray test, three specimens per rebar type were tested, whereas one specimen per rebar type was used in the pullout test. The goal was to investigate and compare the corrosion resistance and bond strength of coated and uncoated rebars, taking into account practicality and costs. The pull-out test specimens were cured for 28 days. The salt spray test specimens, on the other hand, were exposed in a controlled environment inside the acrylic chamber for 120 hours. The Microsoft Excel application was used to help in analyzing the results of this study. The results show that uncoated rebars are more prone to corrosion compared to both textured and untextured coated rebars. This is due to the huge difference between their weight without coating and when the coating was removed after NaCl (Sodium Chloride) exposure. Furthermore, due to budget constraints and a limited sample quantity for the pullout test, its results will be inconclusive but included for method analysis reference.