Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials

The present article introduces a novel and rapid method for processing nanoindentation data using SEM image analysis, called Auto-NI-SEM (Automatic NanoIndentation-Scanning Electron Microscopy). The originality of the method lies in the exploitation of micromechanical data, coupled with image analys...

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Main Authors: Imane Bekrine, Benoit Hilloulin, Ahmed Loukili
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Materials & Design
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Online Access:http://www.sciencedirect.com/science/article/pii/S0264127525000279
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author Imane Bekrine
Benoit Hilloulin
Ahmed Loukili
author_facet Imane Bekrine
Benoit Hilloulin
Ahmed Loukili
author_sort Imane Bekrine
collection DOAJ
description The present article introduces a novel and rapid method for processing nanoindentation data using SEM image analysis, called Auto-NI-SEM (Automatic NanoIndentation-Scanning Electron Microscopy). The originality of the method lies in the exploitation of micromechanical data, coupled with image analysis, by developing a suitable automatic deconvolution method. The method leads to a rapid phase quantification of cement paste phases along with their elastic and viscoelastic properties, essential for accurate prediction of macroscopic properties. The results were validated on cement pastes with different water-to-cement (w/c) ratios. Furthermore, the method was found to be reliable for the detection of minor phases, such as for portlandite in low water-to-cement ratios cement pastes, whose volume fractions are in line with those measured by thermogravimetric analysis. Finally, the refined properties helped to accurately predict the cement pastes creep using an analytical homogenization scheme, which was confirmed by microindentation measurements.
format Article
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institution Kabale University
issn 0264-1275
language English
publishDate 2025-02-01
publisher Elsevier
record_format Article
series Materials & Design
spelling doaj-art-f9086d2195b343f188162823d6d0692b2025-01-20T04:17:16ZengElsevierMaterials & Design0264-12752025-02-01250113607Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materialsImane Bekrine0Benoit Hilloulin1Ahmed Loukili2Nantes Université, Ecole Centrale Nantes, CNRS, GeM, UMR 6183, F-44000 Nantes, FranceCorresponding author.; Nantes Université, Ecole Centrale Nantes, CNRS, GeM, UMR 6183, F-44000 Nantes, FranceNantes Université, Ecole Centrale Nantes, CNRS, GeM, UMR 6183, F-44000 Nantes, FranceThe present article introduces a novel and rapid method for processing nanoindentation data using SEM image analysis, called Auto-NI-SEM (Automatic NanoIndentation-Scanning Electron Microscopy). The originality of the method lies in the exploitation of micromechanical data, coupled with image analysis, by developing a suitable automatic deconvolution method. The method leads to a rapid phase quantification of cement paste phases along with their elastic and viscoelastic properties, essential for accurate prediction of macroscopic properties. The results were validated on cement pastes with different water-to-cement (w/c) ratios. Furthermore, the method was found to be reliable for the detection of minor phases, such as for portlandite in low water-to-cement ratios cement pastes, whose volume fractions are in line with those measured by thermogravimetric analysis. Finally, the refined properties helped to accurately predict the cement pastes creep using an analytical homogenization scheme, which was confirmed by microindentation measurements.http://www.sciencedirect.com/science/article/pii/S0264127525000279NanoindentationMicrostructure [B]Calcium-silicate-hydrate (C–S–H) [B]Micromechanics [C]Creep
spellingShingle Imane Bekrine
Benoit Hilloulin
Ahmed Loukili
Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
Materials & Design
Nanoindentation
Microstructure [B]
Calcium-silicate-hydrate (C–S–H) [B]
Micromechanics [C]
Creep
title Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
title_full Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
title_fullStr Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
title_full_unstemmed Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
title_short Combined nanoindentation and SEM imaging for phase quantification and creep prediction of cementitious materials
title_sort combined nanoindentation and sem imaging for phase quantification and creep prediction of cementitious materials
topic Nanoindentation
Microstructure [B]
Calcium-silicate-hydrate (C–S–H) [B]
Micromechanics [C]
Creep
url http://www.sciencedirect.com/science/article/pii/S0264127525000279
work_keys_str_mv AT imanebekrine combinednanoindentationandsemimagingforphasequantificationandcreeppredictionofcementitiousmaterials
AT benoithilloulin combinednanoindentationandsemimagingforphasequantificationandcreeppredictionofcementitiousmaterials
AT ahmedloukili combinednanoindentationandsemimagingforphasequantificationandcreeppredictionofcementitiousmaterials