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Title: NATURAL FIBRES AS A SUSTAINABLE ALTERNATIVE FOR REDUCING CONCRETE MICROCRACKING
NATURAL FIBRES AS A SUSTAINABLE ALTERNATIVE FOR REDUCING CONCRETE MICROCRACKING

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Cecilia Fuentealba; MSc. Andres Cesar; Eng. Fernanda Ramirez; Dr. Mauricio Pradena-Miquel
10.5593/sgem2023V/6.2/s26.71
10.5593/sgem2023v/6.2
1314-2704
978-619-7603-66-8
English
23
6.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
The incorporation of natural fibres as reinforcement of concrete is attractive from a sustainable perspective. In fact, natural fibres improve the deformation capacity and increase the ductility of concrete. In addition, natural fibres are lightweight, renewable, less expensive than man-made fibres and locally abundant. However, in order to determine their use in different concrete applications, it is necessary to know the impact on the mechanical properties and the benefits that can be obtained by incorporating the fibres. In this regard, the objective of the present study is to determine the impact of incorporating 0.5%, 1.0% and 1.5% eucalyptus fibre on the workability, compressive strength of concrete and the ability to control the development of micro-cracks. The results indicate that as fibre percentages increases, the workability decreases. However, for all the cases evaluated, the reduction in workability was not significant. Additionally, in all cases, higher compressive strength was observed at 7 days of age compared to the control sample without fibre. This fact may represent constructive advantages from a construction time optimisation perspective. Finally, the samples with fibres decreased the length, width and number of cracks generated in the concrete. Therefore, eucalyptus fibres are suitable as an alternative to control micro-cracking, which can increase the service life of the structures and save maintenance costs.
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The authors acknowledge the support of ANID BASAL FB210015 CENAMAD.
conference
https://doi.org/10.5593/sgem2023V/6.2/s26.71
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 28-30 November, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference-SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
585-592
28-30 November, 2023
website
9644
Eucalyptus globulus, microcracking, natural fibres, reinforced concrete, sustainable concrete