Journal
CEMENT & CONCRETE COMPOSITES
Volume 126, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.cemconcomp.2021.104367
Keywords
Textile-reinforced concrete (TRC); Flax textile; Natural fibres; Finite element; Metakaolin; Cement-based composites
Funding
- European Commission [739574]
- Republic of Slovenia
- Republic of Slovenia [European Regional Development Fund]
- Horizon 2020
- EU [898179]
- Cost Action [CA17107]
- Slovenian Research Agency [P2-0273]
- Marie Curie Actions (MSCA) [898179] Funding Source: Marie Curie Actions (MSCA)
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This study investigates the effect of Portland cement replacement with metakaolin on the mechanical behavior of flax textile-reinforced cementitious matrices. The results show that replacing Portland cement with metakaolin improves the ductility of the cement-based composite material and prevents degradation and embrittlement of the flax fibers.
This study presents research on the effect of Portland cement (PC) replacement with metakaolin on the mechanical behavior of flax textile-reinforced cementitious matrices (TRCM). The composition of cementitious matrices and in-situ flax fibres was determined using X-ray diffraction and thermogravimetric analysis, while the reinforcement efficiency of the textile and mechanical behavior of TRCMs was investigated by three-point bending tests and finite element analysis. High amounts of PC replacement with metakaolin provided a calcium hydroxide-free environment, more suitable for the natural fibres, to avoid their degradation and embrittlement and, thus, significantly contribute to the ductility of the cement-based composite material.
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