State of the Art on Cactus Additions in Alkaline Media as Corrosion Inhibitors
Joint Authors
Martínez-Molina, W.
Acosta, Andres A. Torres
Alonso-Guzmán, E. M.
Source
International Journal of Corrosion
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-18
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
This research in progress includes results on the corrosion performance of reinforcing steel in alkaline media when two different dehydrated cacti (Opuntia ficus-indica—Nopal—and Aloe Vera) were used as additions in pH 12.5 and 13.3 solutions and in concrete.
The dehydrated cactus addition was mixed at different concentrations by either solution or cement mass (0.10%, 0.25%, 0.5%, 1.0%, and 2.0%).
Half-cell potentials and LPR measurements were performed at different time periods to characterize the possible corrosion inhibiting effect of the cactus additions tested in such alkaline media.
Results showed good corrosion inhibiting effect of dehydrated Nopal on reinforcing steel, in all tested solutions, when chloride ions are present.
Aloe Vera did show also corrosion inhibiting improvements in some extent.
The addition of such cactus led to an apparent formation of a denser and more packed oxide/hydroxide surface layer on the steel surface that decreased corrosion activity.
This oxide/hydroxide layer growth was confirmed by microscopic evaluation of the metal surface layer performed at the end of the research program.
The preliminary findings suggest that adding Nopal at concentrations between 1% and 2%, by mass, might be suitable for durability enhancing applications in alkaline media, especially in concrete structures.
American Psychological Association (APA)
Acosta, Andres A. Torres& Martínez-Molina, W.& Alonso-Guzmán, E. M.. 2012. State of the Art on Cactus Additions in Alkaline Media as Corrosion Inhibitors. International Journal of Corrosion،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-487840
Modern Language Association (MLA)
Acosta, Andres A. Torres…[et al.]. State of the Art on Cactus Additions in Alkaline Media as Corrosion Inhibitors. International Journal of Corrosion No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-487840
American Medical Association (AMA)
Acosta, Andres A. Torres& Martínez-Molina, W.& Alonso-Guzmán, E. M.. State of the Art on Cactus Additions in Alkaline Media as Corrosion Inhibitors. International Journal of Corrosion. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-487840
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-487840