Effect of the roughness of steel fibre surface on its wettability and the cement paste close to fibre surface
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2021-06-28
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Language
en
Pages
11
Series
Construction and Building Materials, Volume 289
Abstract
This study experimentally examines the relationship between fibre surface roughness, its wettability, and the microstructure of the cement paste close to the fibre. Results indicate that the amount of water that adheres to or is retained by the fibre surface grows with the increase in roughness. The distributions of porosity and of unhydrated cement grains, which were produced through analysis of BSE images with a k-means clustering algorithm up to 100μm from fibre surface, revealed a decrease in both large pores and porosity when roughness increased but not a clear effect on the distribution of unhydrated cement grains.Description
Funding Information: This work was supported by the AaltoENG doctoral programme of the School of Engineering of the Aalto University. Publisher Copyright: © 2021 The Author(s) Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
Keywords
Contact angle, Fibre–matrix interface, ITZ, k-means clustering, Roughness, Steel fibre, Surface treatment, Wetting
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Citation
Antonova, A, Eik, M, Jokinen, V & Puttonen, J 2021, ' Effect of the roughness of steel fibre surface on its wettability and the cement paste close to fibre surface ', Construction and Building Materials, vol. 289, 123139 . https://doi.org/10.1016/j.conbuildmat.2021.123139