Performance of cactus mucilage and brown seaweed extract as a steel corrosion inhibitor in alkaline media

Eddisson Francisco Hernández, Andrés Antonio Torres Acosta, Prisciliano Felipe De Jesús Cano Barrita

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents preliminary study to the performance of cactus mucilage and seaweed extract as corrosion inhibitors. Electrochemical cells were prepared using cactus mucilage and brown seaweed extract solutions at different concentrations and saturated with calcium hydroxide to obtain a pH of12.5. Each cell contained two steel bars with 9.5 mm diameter. The experiments were performedin two stages. The first stage was aimed to stabilize the rebars until passivation was reached; in second one NaCl was addedin five steps from 0.5 to 8g/L. Half-cell potential and Linear Polarization Resistance measurements were undertaken. Both additives work as corrosion inhibitors, especially the cactus mucilage at1% concentration.

Original languageEnglish
Title of host publicationProceedings of the 10th fib International PhD Symposium in Civil Engineering
EditorsNicolas Rouleau, Josee Bastien, Mathieu Fiset, Mathieu Thomassin
PublisherUniversite Laval
Pages609-613
Number of pages5
ISBN (Electronic)9782980676215
StatePublished - 2014
Event10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014 - Quebec City, Canada
Duration: 21 Jul 201423 Jul 2014

Publication series

NameProceedings of the 10th fib International PhD Symposium in Civil Engineering

Conference

Conference10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014
Country/TerritoryCanada
CityQuebec City
Period21/07/1423/07/14

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