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    Rights statement: This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 282, 2021 DOI: 10.1016/j.conbuildmat.2021.122631

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Synthesis and characterization of alkali-activated loess and its application as protective coating

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Synthesis and characterization of alkali-activated loess and its application as protective coating. / Dassekpo, J.-B.M.; Feng, W.; Li, Y.; Miao, L.; Dong, Z.; Ye, J.

In: Construction and Building Materials, Vol. 282, 122631, 03.05.2021.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Dassekpo, J-BM, Feng, W, Li, Y, Miao, L, Dong, Z & Ye, J 2021, 'Synthesis and characterization of alkali-activated loess and its application as protective coating', Construction and Building Materials, vol. 282, 122631. https://doi.org/10.1016/j.conbuildmat.2021.122631

APA

Dassekpo, J-BM., Feng, W., Li, Y., Miao, L., Dong, Z., & Ye, J. (2021). Synthesis and characterization of alkali-activated loess and its application as protective coating. Construction and Building Materials, 282, [122631]. https://doi.org/10.1016/j.conbuildmat.2021.122631

Vancouver

Dassekpo J-BM, Feng W, Li Y, Miao L, Dong Z, Ye J. Synthesis and characterization of alkali-activated loess and its application as protective coating. Construction and Building Materials. 2021 May 3;282. 122631. https://doi.org/10.1016/j.conbuildmat.2021.122631

Author

Dassekpo, J.-B.M. ; Feng, W. ; Li, Y. ; Miao, L. ; Dong, Z. ; Ye, J. / Synthesis and characterization of alkali-activated loess and its application as protective coating. In: Construction and Building Materials. 2021 ; Vol. 282.

Bibtex

@article{d6f7d0fc790e429c95f9f1049bad4e58,
title = "Synthesis and characterization of alkali-activated loess and its application as protective coating",
abstract = "Environmental friendly and sustainable repair materials with reduced carbon emission have been in high demand worldwide. Frequent deterioration of cement concrete structures is unpreventable and requires appropriate repair materials. Aside from the cementitious, polymeric or resinous materials used to remedy this problem, geopolymeric mortars are reported to be friendly and more sustainable, considering the lower energy required for its production and its intrinsic properties. When selecting geopolymer produced from aluminosilicate waste as repair materials, a measured dissolution in an adequate alkaline solution is required for geopolymerization. Accordingly, this paper examines the synthesis and properties of alkali-activated loess, followed by its effective application as concrete protective coating. The geopolymer mortars (GPMs) were made from loess and ground granulated blast slag (GGBS), and activated with either sodium hydroxide or a combination of sodium hydroxide and sodium silicate solutions. Experimental results showed that, both alkali activators have major influences on the apparent viscosity, roughness, compressibility and microstructural properties of loess GPMs. Results from nanoindentation also reveal good adhesion, higher bulk indent modulus and hardness of the applied mortar, a fact that makes loess geopolymer a great potential repair material to be used as barrier coating for cement concrete substrates. ",
keywords = "Alkali-activator, Coating, Loess, Nanoindentation, Roughness, Slag, Viscosity, Cements, Concretes, Deterioration, Geopolymer concrete, Inorganic polymers, Mortar, Protective coatings, Repair, Sediments, Silicates, Slags, Sodium hydroxide, Alkaline solutions, Apparent viscosity, Environmental-friendly, Geopolymeric mortar, Intrinsic property, Micro-structural properties, Sodium silicate solutions, Synthesis and characterizations, Geopolymers",
author = "J.-B.M. Dassekpo and W. Feng and Y. Li and L. Miao and Z. Dong and J. Ye",
note = "This is the author{\textquoteright}s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 282, 2021 DOI: 10.1016/j.conbuildmat.2021.122631 ",
year = "2021",
month = may,
day = "3",
doi = "10.1016/j.conbuildmat.2021.122631",
language = "English",
volume = "282",
journal = "Construction and Building Materials",
issn = "0950-0618",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Synthesis and characterization of alkali-activated loess and its application as protective coating

AU - Dassekpo, J.-B.M.

AU - Feng, W.

AU - Li, Y.

AU - Miao, L.

AU - Dong, Z.

AU - Ye, J.

N1 - This is the author’s version of a work that was accepted for publication in Construction and Building Materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Construction and Building Materials, 282, 2021 DOI: 10.1016/j.conbuildmat.2021.122631

PY - 2021/5/3

Y1 - 2021/5/3

N2 - Environmental friendly and sustainable repair materials with reduced carbon emission have been in high demand worldwide. Frequent deterioration of cement concrete structures is unpreventable and requires appropriate repair materials. Aside from the cementitious, polymeric or resinous materials used to remedy this problem, geopolymeric mortars are reported to be friendly and more sustainable, considering the lower energy required for its production and its intrinsic properties. When selecting geopolymer produced from aluminosilicate waste as repair materials, a measured dissolution in an adequate alkaline solution is required for geopolymerization. Accordingly, this paper examines the synthesis and properties of alkali-activated loess, followed by its effective application as concrete protective coating. The geopolymer mortars (GPMs) were made from loess and ground granulated blast slag (GGBS), and activated with either sodium hydroxide or a combination of sodium hydroxide and sodium silicate solutions. Experimental results showed that, both alkali activators have major influences on the apparent viscosity, roughness, compressibility and microstructural properties of loess GPMs. Results from nanoindentation also reveal good adhesion, higher bulk indent modulus and hardness of the applied mortar, a fact that makes loess geopolymer a great potential repair material to be used as barrier coating for cement concrete substrates.

AB - Environmental friendly and sustainable repair materials with reduced carbon emission have been in high demand worldwide. Frequent deterioration of cement concrete structures is unpreventable and requires appropriate repair materials. Aside from the cementitious, polymeric or resinous materials used to remedy this problem, geopolymeric mortars are reported to be friendly and more sustainable, considering the lower energy required for its production and its intrinsic properties. When selecting geopolymer produced from aluminosilicate waste as repair materials, a measured dissolution in an adequate alkaline solution is required for geopolymerization. Accordingly, this paper examines the synthesis and properties of alkali-activated loess, followed by its effective application as concrete protective coating. The geopolymer mortars (GPMs) were made from loess and ground granulated blast slag (GGBS), and activated with either sodium hydroxide or a combination of sodium hydroxide and sodium silicate solutions. Experimental results showed that, both alkali activators have major influences on the apparent viscosity, roughness, compressibility and microstructural properties of loess GPMs. Results from nanoindentation also reveal good adhesion, higher bulk indent modulus and hardness of the applied mortar, a fact that makes loess geopolymer a great potential repair material to be used as barrier coating for cement concrete substrates.

KW - Alkali-activator

KW - Coating

KW - Loess

KW - Nanoindentation

KW - Roughness

KW - Slag

KW - Viscosity

KW - Cements

KW - Concretes

KW - Deterioration

KW - Geopolymer concrete

KW - Inorganic polymers

KW - Mortar

KW - Protective coatings

KW - Repair

KW - Sediments

KW - Silicates

KW - Slags

KW - Sodium hydroxide

KW - Alkaline solutions

KW - Apparent viscosity

KW - Environmental-friendly

KW - Geopolymeric mortar

KW - Intrinsic property

KW - Micro-structural properties

KW - Sodium silicate solutions

KW - Synthesis and characterizations

KW - Geopolymers

U2 - 10.1016/j.conbuildmat.2021.122631

DO - 10.1016/j.conbuildmat.2021.122631

M3 - Journal article

VL - 282

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

M1 - 122631

ER -