UM
Characterisation of the interfacial transition zone in mortars by nanoindentation and scanning electron microscope
Gao Y.1; Hu C.2; Zhang Y.1; Li Z.3; Pan J.1
2018-09-01
Source PublicationMagazine of Concrete Research
ISSN1751763X 00249831
Volume70Issue:18Pages:965-972
AbstractThis paper aims to characterise the microstructure and the micro-mechanical properties of the interfacial transition zone (ITZ) in mortars at different water/cement ratios by nanoindentation and scanning electron microscope. Through this study, an insight is provided into the link between the microstructure and the micro-mechanical properties of the ITZ. The thickness of the ITZ was determined from the viewpoint of micro-mechanical properties, as well as from the viewpoint of porosity. The results showed that the average elastic modulus of calcium-silicate-hydrate gel present in the ITZ decreases with the increasing water/cement ratio. Meanwhile, the ratios between the average reduced moduli of the ITZ and the cement paste matrix were quantitatively determined, and the results showed that a lower water/cement ratio led to a thinner ITZ, and a higher ratio between the average reduced moduli of the ITZ and the cement paste matrix.
KeywordCement Cementitious materials Modulus of elasticity Mortar
DOI10.1680/jmacr.17.00161
URLView the original
Language英語
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Southeast University
2.Wuhan University of Technology
3.Hong Kong University of Science and Technology
4.Jiangsu Academy of Safety Science and Technology
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Gao Y.,Hu C.,Zhang Y.,et al. Characterisation of the interfacial transition zone in mortars by nanoindentation and scanning electron microscope[J]. Magazine of Concrete Research,2018,70(18):965-972.
APA Gao Y.,Hu C.,Zhang Y.,Li Z.,&Pan J..(2018).Characterisation of the interfacial transition zone in mortars by nanoindentation and scanning electron microscope.Magazine of Concrete Research,70(18),965-972.
MLA Gao Y.,et al."Characterisation of the interfacial transition zone in mortars by nanoindentation and scanning electron microscope".Magazine of Concrete Research 70.18(2018):965-972.
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