Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel

In order to explore the anti-corrosion performance of magnesium potassium phosphate cement (MKPC) coating on steel, and the effect of silica fume with different contents on anti-corrosion ability of MKPC coating, electrochemical tests on the uncoated steel plate sample, MKPC coating sample, and sili...

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Main Authors: Bo Wang, Kailong Lu, Chao Han, Qing Wu
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Case Studies in Construction Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S221450952200599X
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author Bo Wang
Kailong Lu
Chao Han
Qing Wu
author_facet Bo Wang
Kailong Lu
Chao Han
Qing Wu
author_sort Bo Wang
collection DOAJ
description In order to explore the anti-corrosion performance of magnesium potassium phosphate cement (MKPC) coating on steel, and the effect of silica fume with different contents on anti-corrosion ability of MKPC coating, electrochemical tests on the uncoated steel plate sample, MKPC coating sample, and silica fume modified MKPC coating samples were carried out in 3.5% sodium chloride solution. The micromorphology and phase composition of MKPC coating sample and silicon fume modified MKPC coating sample were studied by SEM-EDS and XRD tests, as well as the anti-corrosion mechanism. The results show that MKPC-based anti-corrosion coating has good anti-corrosion effect. After the modification of silica fume, the anti-corrosion ability of MKPC coating is greatly improved, when the content of silica fume is 20% of the mass of the magnesium oxide in the gelling system, the corrosion resistance of the coating is optimal.
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spelling doaj.art-62623b405cdb49308480f3edeabb65582022-12-22T04:04:32ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01467Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steelBo Wang0Kailong Lu1Chao Han2Qing Wu3College of Civil Engineering and Architecture, Jiangsu Univ. of Science and Technology, Zhenjiang 212000, ChinaCorresponding author.; College of Civil Engineering and Architecture, Jiangsu Univ. of Science and Technology, Zhenjiang 212000, ChinaCollege of Civil Engineering and Architecture, Jiangsu Univ. of Science and Technology, Zhenjiang 212000, ChinaCollege of Civil Engineering and Architecture, Jiangsu Univ. of Science and Technology, Zhenjiang 212000, ChinaIn order to explore the anti-corrosion performance of magnesium potassium phosphate cement (MKPC) coating on steel, and the effect of silica fume with different contents on anti-corrosion ability of MKPC coating, electrochemical tests on the uncoated steel plate sample, MKPC coating sample, and silica fume modified MKPC coating samples were carried out in 3.5% sodium chloride solution. The micromorphology and phase composition of MKPC coating sample and silicon fume modified MKPC coating sample were studied by SEM-EDS and XRD tests, as well as the anti-corrosion mechanism. The results show that MKPC-based anti-corrosion coating has good anti-corrosion effect. After the modification of silica fume, the anti-corrosion ability of MKPC coating is greatly improved, when the content of silica fume is 20% of the mass of the magnesium oxide in the gelling system, the corrosion resistance of the coating is optimal.http://www.sciencedirect.com/science/article/pii/S221450952200599XMagnesium potassium phosphate cement (MKPC) coatingResistance to corrosion of steelSilica fume modificationElectrochemistry
spellingShingle Bo Wang
Kailong Lu
Chao Han
Qing Wu
Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
Case Studies in Construction Materials
Magnesium potassium phosphate cement (MKPC) coating
Resistance to corrosion of steel
Silica fume modification
Electrochemistry
title Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
title_full Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
title_fullStr Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
title_full_unstemmed Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
title_short Study on anti-corrosion performance of silica fume modified magnesium potassium phosphate cement-based coating on steel
title_sort study on anti corrosion performance of silica fume modified magnesium potassium phosphate cement based coating on steel
topic Magnesium potassium phosphate cement (MKPC) coating
Resistance to corrosion of steel
Silica fume modification
Electrochemistry
url http://www.sciencedirect.com/science/article/pii/S221450952200599X
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AT chaohan studyonanticorrosionperformanceofsilicafumemodifiedmagnesiumpotassiumphosphatecementbasedcoatingonsteel
AT qingwu studyonanticorrosionperformanceofsilicafumemodifiedmagnesiumpotassiumphosphatecementbasedcoatingonsteel