Abstract
Concrete is a material with high compressive strength, but predisposed to shrinkage cracking, rapid cracks propagation, and brittle failures. The incorporation of fibre is an acceptable solution to reduce these limitations. However, high cost and energy consumption related to man-made fibres have placed natural fibres as an attractive sustainable alternative, especially considering that different natural fibres are industrial waste (as the Eucalyptus globulus bark fibre). Still, natural fibres can produce an important reduction of concrete strength. Hence, the objective of this study is to evaluate the effects of Eucalyptus globulus bark fibre in traditional concrete mechanical properties as compressive and flexural strength. For this, an experimental program was developed in such a way that reduces the results uncertainties and increases the power of decision regarding the percentage and fibre conditions of the samples. The results indicate that, unlike other natural fibres, the traditional mechanical properties have a slight reduction and acceptable workability. This fact is more evident in the samples with 0.50% fibre with respect to the weight of cement. Therefore, reinforcing mortars and concrete with Eucalyptus globulus bark fibres emerges as an eco-friendly building alternative to reuse this industrial waste.
Highlights
Concrete is one of the most used materials in the construction industry, with an estimating production of 30 billion tons per year [1].Despite being a material known for its high compressive strength [2], the concrete material is predisposed to shrinkage cracking, rapid cracks propagation, and brittle failures [3,4]
The work presented in this article is part of a bigger investigation about the effect of E. globulus bark fibres as concrete reinforcement
At the present state, very valuable conclusions are possible to obtain regarding to the mechanical properties traditionally evaluated in cement mortars and concrete, i.e., compressive and flexural strength
Summary
Despite being a material known for its high compressive strength [2], the concrete material is predisposed to shrinkage cracking, rapid cracks propagation, and brittle failures [3,4]. In this context, the addition of fibres in the concrete mixture has proven to be an acceptable solution to minimize these limitations [5,6,7]. Fibres can contribute to minimize the corrosion problems in concrete structures, because fibres limit the formation and cracking increment, and they can replace part of the steel reinforcement [10,15]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
