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Landa-Ruiz, Laura; Baltazar-Zamora, Miguel Angel; Bosch, Juan; Ress, Jacob; Santiago-Hurtado, Griselda; Moreno-Landeros, Victor Manuel; Márquez-Montero, Sabino; Méndez, Ce Tochtli; Borunda, Adan; Juárez-Alvarado, César A.; Mendoza-Rangel, José M.; Bastidas, David. M.

Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates

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  • Medientyp: E-Artikel
  • Titel: Electrochemical Corrosion of Galvanized Steel in Binary Sustainable Concrete Made with Sugar Cane Bagasse Ash (SCBA) and Silica Fume (SF) Exposed to Sulfates
  • Beteiligte: Landa-Ruiz, Laura; Baltazar-Zamora, Miguel Angel; Bosch, Juan; Ress, Jacob; Santiago-Hurtado, Griselda; Moreno-Landeros, Victor Manuel; Márquez-Montero, Sabino; Méndez, Ce Tochtli; Borunda, Adan; Juárez-Alvarado, César A.; Mendoza-Rangel, José M.; Bastidas, David. M.
  • Erschienen: MDPI AG, 2021
  • Erschienen in: Applied Sciences, 11 (2021) 5, Seite 2133
  • Sprache: Englisch
  • DOI: 10.3390/app11052133
  • ISSN: 2076-3417
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: This research evaluates the behavior corrosion of galvanized steel (GS) and AISI 1018 carbon steel (CS) embedded in conventional concrete (CC) made with 100% CPC 30R and two binary sustainable concretes (BSC1 and BSC2) made with sugar cane bagasse ash (SCBA) and silica fume (SF), respectively, after 300 days of exposure to 3.5 wt.% MgSO4 solution as aggressive medium. Electrochemical techniques were applied to monitor corrosion potential (Ecorr) according to ASTM C-876-15 and linear polarization resistance (LPR) according to ASTM G59 for determining corrosion current density (icorr). Ecorr and icorr results indicate after more than 300 days of exposure to the sulfate environment (3.5 wt.% MgSO4 solution), that the CS specimens embedded in BSC1 and BSC2 presented greater protection against corrosion in 3.5 wt.% MgSO4 than the specimens embedded in CC. It was also shown that this protection against sulfates is significantly increased when using GS reinforcements. The results indicate a higher resistance to corrosion by exposure to 3.5 wt.% magnesium sulfate two times greater for BSC1 and BSC2 specimens reinforced with GS than the specimens embedding CS. In summary, the combination of binary sustainable concrete with galvanized steel improves durability and lifetime in service, in addition to reducing the environmental impact of the civil engineering structures.
  • Zugangsstatus: Freier Zugang