Contact between cementitious matrix and fibres influenced by the modification of their parameters

Conference paper (2021)

Authors

Anna Antonova Aalto University, Finland
Marika Eik Aalto University, Finland
Jouni Punkki Aalto University, Finland
Ville Jokinen Aalto University, Finland
Jari Puttonen Aalto University, Finland
Copyright: © 2021 the authors
Contact Roughness Wetting Fibre reinforced cementitious composites
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Published Date

29-04-2021

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Abstract

The performance of fibre reinforced cementitious composites depends on the interaction between the cementitious matrix and the fibres on the micro-scale. This interaction is affected by the material and surface properties of the fibre and the micro-scale characteristics of the cementitious matrix close to the fibre surface, creating the interfacial transition zone (ITZ). However, the discussions regarding the effect of the surface properties of fibres on the formation of the ITZ and, as a result, the bond strength between the matrix and the fibres are limited. The present paper reports the progress of the ongoing research project, which concentrates on investigating the contact created by the steel fibres with different characteristics of the surface roughness and cementitious matrix. The results of this study can support the development of efficient fibre reinforced cementitious composites.