Resumen

RIVERA-ORTIZ, I.; DIAZ-BLANCO, Y.; MENCHACA-CAMPOS, C.  y  URUCHURTU-CHAVARIN, J.. Use of chitosan as an organic coating to prevent / inhibit the corrosion of reinforced concrete. Rev. ALCONPAT [online]. 2021, vol.11, n.2, pp.38-60.  Epub 12-Sep-2022. ISSN 2007-6835.  https://doi.org/10.21041/ra.v11i2.519.

This work analyzes the performance of reinforced concrete (RC) against corrosion by applying a chitosan coating to the rebar. Specimens with different amounts of chitosan using solvents of apple vinegar, acetic acid and sugarcane alcohol vinegar were prepared and subjected to electrochemical polarization curves (PC), half-cell potential (HCP), electrochemical noise (EN) and linear polarization resistance (LPR) tests. The amount of chitosan and optimal layers (thickness) with an improvement in the protective properties was determined and low corrosion rates were obtained in the concrete exposed to chlorides for 200 days. The preservation of the coating on the steel in concrete turns out to be interesting for future studies.

Palabras llave : corrosion; inhibitor; apple vinegar; concrete; chitosan..