Conifer Cone (Pinus resinosa) as a Green Corrosion Inhibitor for Steel Rebar in Chloride-Contaminated Synthetic Concrete Pore Solutions

2021 ◽  
Vol 13 (36) ◽  
pp. 43676-43695
Author(s):  
Karthick Subbiah ◽  
Han-Seung Lee ◽  
Soumen Mandal ◽  
Taejoon Park
Keyword(s):  
Corrosion Inhibitor ◽  
Pinus Resinosa ◽  
Steel Rebar ◽  
Green Corrosion Inhibitor ◽  
Conifer Cone ◽  
Chloride Contaminated

The inhibitive properties of Nopal slime on the corrosion of steel in chloride-contaminated mortar

2015 ◽  
Vol 63 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Wilfrido Martinez-Molina ◽  
Andres Torres-Acosta ◽  
Rosalba Hernández-Leos ◽  
Elia Alonso-Guzman ◽  
Itzel Mendoza-Pérez ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Corrosion Inhibitor ◽  
Electrochemical Impedance ◽  
Experimental Period ◽  
Experimental Program ◽  
Content Type ◽  
Industry Applications ◽  
Cactus Mucilage ◽  
Electrochemical Monitoring ◽  
Chloride Contaminated

Purpose – The purpose of this paper is to determine if a type of cactus mucilage, Opuntia ficus-indica (OFI), may act as a corrosion inhibitor for carbon steel in cement-based materials (mortar) exposed to chloride-laden environment. Design/methodology/approach – Mortar prisms, reinforced with carbon steel rods, were immersed in sodium chloride (NaCl) solution for five wet – dry cycles. The experimentation included electrochemical monitoring (corrosion potential, Ecorr, and polarization resistance, Rp) of carbon steel during the time of exposure until corrosion-induced cracking appeared at the mortar surface. Crack survey on the mortar prisms was performed. Carbon steel rods were retrieved from the mortar after crack survey and steel mass loss at the end of the experimental period was estimated. A comparison between the different mixtures was also performed. Findings – OFI mucilage did perform as a corrosion inhibitor of steel in chloride contaminated mortar. Research limitations/implications – The experimental program needs to be corroborated in concrete specimens with typical dimensions. The surface oxide/hydroxide formation of the carbon steel in contact with the OFI mucilage is still unknown; thus, electrochemical impedance spectroscopy (EIS) and X-ray diffraction (XRD) analyses are needed. Practical implications – OFI mucilage is a suitable natural product that can be used to increase durability of concrete structures not only in countries where OFI cactus is produced, but also in many other countries where this plant is considered a plague. Originality/value – The new information obtained from this paper is the innovative use of a by-product of this cactus plant for construction industry applications.

Acalypha torta Leaf Extract as Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution

2013 ◽  
Vol 52 (2) ◽  
pp. 722-728 ◽  
Author(s):  
Pavithra M. Krishnegowda ◽  
Venkatarangaiah T. Venkatesha ◽  
Punith Kumar M. Krishnegowda ◽  
Shylesha B. Shivayogiraju
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Mild Steel ◽  
Corrosion Inhibitor ◽  
Hydrochloric Acid Solution ◽  
Leaf Extract ◽  
Green Corrosion Inhibitor
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