Inhibition effect of lithium salts on the corrosion of AA1100 aluminium alloy in ordinary Portland cement pastes

Xiang Li; Sébastien Caes; Thomas Pardoen; Geert De Schutter; Tom Hauffman; Bruno Kursten

doi:10.1016/j.corsci.2023.111325

Inhibition effect of lithium salts on the corrosion of AA1100 aluminium alloy in ordinary Portland cement pastes

Xiang Li, Sébastien Caes, Thomas Pardoen, Geert De Schutter, Tom Hauffman, Bruno Kursten

R&D Waste Packages

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1 Scopus citations

Abstract

The corrosion inhibition effect of LiNO₃ and Li₂CO₃ has been investigated for protecting aluminium alloy 1100 encapsulated in ordinary Portland cement pastes. A combined approach of electrochemical measurements, scanning electron microscopy and gas chromatography revealed that the corrosion rate of AA1100 is effectively inhibited owing to the formation of a protective corrosion product film in cement pastes with the addition of LiNO₃ or Li₂CO₃. Without any inhibitor, the fast corrosion rate leads to visible cracking in the cement paste matrix. Both the hydration evolution and the curing environment of cement pastes play important roles in the corrosion process.

Original language	English
Article number	111325
Number of pages	15
Journal	Corrosion Science
Volume	221
DOIs	https://doi.org/10.1016/j.corsci.2023.111325
State	Published - 15 Aug 2023

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science

Access to Document

10.1016/j.corsci.2023.111325

Cite this

@article{047032e6df394726badc3cd9191d770c,

title = "Inhibition effect of lithium salts on the corrosion of AA1100 aluminium alloy in ordinary Portland cement pastes",

abstract = "The corrosion inhibition effect of LiNO3 and Li2CO3 has been investigated for protecting aluminium alloy 1100 encapsulated in ordinary Portland cement pastes. A combined approach of electrochemical measurements, scanning electron microscopy and gas chromatography revealed that the corrosion rate of AA1100 is effectively inhibited owing to the formation of a protective corrosion product film in cement pastes with the addition of LiNO3 or Li2CO3. Without any inhibitor, the fast corrosion rate leads to visible cracking in the cement paste matrix. Both the hydration evolution and the curing environment of cement pastes play important roles in the corrosion process.",

keywords = "Aluminium, Corrosion inhibition, Interface, Lithium salts, Ordinary Portland cement",

author = "Xiang Li and S{\'e}bastien Caes and Thomas Pardoen and {De Schutter}, Geert and Tom Hauffman and Bruno Kursten",

note = "Score=10 Funding Information: The research leading to these results has received funding from the {\textquoteleft} Technical Passive Fund {\textquoteright} and was also performed in the broader framework of a public–public cooperation between ONDRAF/NIRAS and SCK CEN. However, the proposed approach and obtained results in no way entail a decision of ONDRAF/NIRAS whatsoever on this approach as a solution for the long-term management of this waste. Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2023",

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day = "15",

doi = "10.1016/j.corsci.2023.111325",

language = "English",

volume = "221",

journal = "Corrosion Science",

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TY - JOUR

T1 - Inhibition effect of lithium salts on the corrosion of AA1100 aluminium alloy in ordinary Portland cement pastes

AU - Li, Xiang

AU - Caes, Sébastien

AU - Pardoen, Thomas

AU - De Schutter, Geert

AU - Hauffman, Tom

AU - Kursten, Bruno

N1 - Score=10 Funding Information: The research leading to these results has received funding from the ‘ Technical Passive Fund ’ and was also performed in the broader framework of a public–public cooperation between ONDRAF/NIRAS and SCK CEN. However, the proposed approach and obtained results in no way entail a decision of ONDRAF/NIRAS whatsoever on this approach as a solution for the long-term management of this waste. Publisher Copyright: © 2023 Elsevier Ltd

PY - 2023/8/15

Y1 - 2023/8/15

N2 - The corrosion inhibition effect of LiNO3 and Li2CO3 has been investigated for protecting aluminium alloy 1100 encapsulated in ordinary Portland cement pastes. A combined approach of electrochemical measurements, scanning electron microscopy and gas chromatography revealed that the corrosion rate of AA1100 is effectively inhibited owing to the formation of a protective corrosion product film in cement pastes with the addition of LiNO3 or Li2CO3. Without any inhibitor, the fast corrosion rate leads to visible cracking in the cement paste matrix. Both the hydration evolution and the curing environment of cement pastes play important roles in the corrosion process.

AB - The corrosion inhibition effect of LiNO3 and Li2CO3 has been investigated for protecting aluminium alloy 1100 encapsulated in ordinary Portland cement pastes. A combined approach of electrochemical measurements, scanning electron microscopy and gas chromatography revealed that the corrosion rate of AA1100 is effectively inhibited owing to the formation of a protective corrosion product film in cement pastes with the addition of LiNO3 or Li2CO3. Without any inhibitor, the fast corrosion rate leads to visible cracking in the cement paste matrix. Both the hydration evolution and the curing environment of cement pastes play important roles in the corrosion process.

KW - Aluminium

KW - Corrosion inhibition

KW - Interface

KW - Lithium salts

KW - Ordinary Portland cement

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UR - https://ecm.sckcen.be/OTCS/llisapi.dll/open/81136142

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JO - Corrosion Science

JF - Corrosion Science

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