Boriding Temperature Effect on Rapid Corrosion of Reinforcing Rebar

  • Tayfun Uygunoğlu Afyon Kocatepe University, Engineering Faculty, Civil Engineering Department, Afyonkarahisar, Turkey
  • İbrahim Güneş
  • Atila Gürhan Çelik

Abstract

The corrosion of steel rebars affects the durability of reinforced concrete (RC) by decreasing the cross-section of the rebar (decreasing its load bearing capacity) and the adherence of the surrounding concrete. When there is a crack in concrete, corrosive species are able to reach directly the steel surface and accordingly the rebars corrosion can be followed more intensively. The durability of RC strongly depends on corrosion of rebars. In the present paper, investigations were carried out to study the corrosion behavior of protected low carbon ribbed reinforcing steel with boron in concrete. The ribbed steel bars were in size of Ø14, and they were coated with boron. The coating process was carried out at 800, 900 and 1000 oC for 2 h and 4 h, respectively. After boriding, the rebars were embedded into the concrete and exposed to rapid corrosion test. Weight loss method was used for estimation the corrosion rate in the current study. The results show that the corrosion rate and cross section loss of protected steel bars decreases when compared to unprotected rebars. According to findings, corrosion beginning time of borided rebars delayed about two times when compared to plain rebar. Boriding process supplies protection against reinforcement corrosion.
Published
Aug 15, 2020
How to Cite
UYGUNOĞLU, Tayfun; GÜNEŞ, İbrahim; ÇELIK, Atila Gürhan. Boriding Temperature Effect on Rapid Corrosion of Reinforcing Rebar. European Journal of Engineering and Formal Sciences, [S.l.], v. 4, n. 2, p. 36-46, aug. 2020. ISSN 2601-6311. Available at: <http://journals.euser.org/index.php/ejef/article/view/4710>. Date accessed: 29 sep. 2020.