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Circular Economy
30mm long had the highest increase (40%) compared to the plane mortar. Compression strength was not significantly reduced with the addition of fibers. After the failure, it could be seen the balling effect in some specimens as shown in the figure 1.
Figure 1. Mortars with coconut fiber specimens after failure.
The results suggest that the deformability of fiber-reinforced mortars is greater than the reference mortar. The incorporation of natural fiber waste on mortars could be a feasible solution to improve mortars' performance of cracking behavior. A more ductile mortar may be achieved with the incorporation of fibers. Although it is necessary to investigate drawbacks, the recycled fibers can be seen as a potential alternative for the incorporation in mortars, in order to contribute positively in technical, economic and environmental terms.
4. Acknowledgment
The present study was funded by the Portuguese Foundation for Science and Technology (FCT), through scholarship PD/BD/135193/2017. The authors also wish to thank the project Re-USE - Revestimentos para Reabilitação: Segurança e Sustentabilidade/LNEC and CERIS/IST.
5. References
EN 1015-3, European Standard. (1999), Methods of test for mortar for masonry – Part 3: Determination of consistence of fresh mortar (by flow table), European Committee for Standardization (CEN), February.
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