Finite strip modeling of cementitious laminates reinforced with sisal fibers

Nagahama, Koji de Jesus; Gadéa, Anderson de Souza Matos; Lima, Paulo Roberto Lopes

doi:10.1016/j.cemconcomp.2015.07.013

Cited by 7 publications

(2 citation statements)

References 25 publications

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“…Typical curves obtained from the flexural test for the composites exhibit a behavior like that observed in the direct tension test, with four well-defined stages: a linear elastic region, the appearance of the first crack and multiple cracking (even in composites with one layer), followed by an increase in stress up to the maximum stress point and then a decrease in stress leading to rupture. Similar deflection-hardening behavior under flexion was observed for cementitious laminates reinforced with long sisal fibers [25,26].…”

Section: Mechanical Behavioursupporting

confidence: 75%

Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric

Arruda Filho,

Lima,

Carvalho

et al. 2024

Textiles

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The use of fabric in reinforcing cement-based materials expands their applications for various types of construction elements. Additionally, employing renewable sources of plant-based fabrics contributes to reducing the environmental impact of the construction industry. However, the variability in the properties of plant fibers and fabrics necessitates prior studies to confirm their effectiveness as reinforcement materials. In this study, a new sisal fabric was produced and utilized as reinforcement in cement-based matrix composites. The sisal fibers, yarns, and fabrics produced were tested under direct tension. Five composites were manufactured by manual lamination, with reinforcement ranging from one to five layers, and were subjected to direct tension and flexural testing. The results indicate that, while the fiber shows brittle failure, the yarn and fabric exhibit a gradual loss of strength after reaching the maximum tension. All composites display strain-hardening and deflection-hardening behavior, with multiple cracking and an increase in tension and deformation before rupture. The mechanical properties exhibited improvement with an increase in the number of layers, and composites with four and five layers displayed distinct behavior, demonstrating increased stiffness after the occurrence of multiple cracking and a better mechanical performance, qualifying them for use as a construction element.

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Section: Mechanical Behavioursupporting

confidence: 75%

Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric

Arruda Filho,

Lima,

Carvalho

et al. 2024

Textiles

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“…According to these authors, however, the manufacturing procedure of this type of formwork is very labor-intensive and, of course, inappropriate for large scale production. In fact, despite the excellent performance of long sisal fiber cement based composites under bending [17,18], the lamination process requires advanced production techniques, in comparison with used technique on the production of concrete reinforced with short fibers.…”

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confidence: 99%

Short sisal fiber reinforced recycled concrete block for one-way precast concrete slabs

Lima

Barros

Roque

et al. 2018

Construction and Building Materials

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This work is dedicated to the assessment of the structural capacity of a new lightweight block for one-way precast concrete slabs made of short sisal fiber reinforced concrete (SSFRC) containing natural and recycled aggregate. Flexural tests were carried out on SSFRC block samples, as well as on ceramic and EPS blocks used commercially. Slab panels including SSFRC, ceramic and EPS blocks were tested under four point bending configuration to assess the benefits of the new SSFRC block in quasi-real slab conditions. The results of the tests indicated the influence of the sisal fibers and recycled aggregate on the physical and mechanical properties of the concrete and the best structural performance of the SSFRC blocks in relation to commercial solutions. The flexural behavior and cracking of slabs were presented and discussed. Numerical models were also developed to predict the nonlinear behavior of the SSFRC and to simulate the flexural behavior, crack initiation and propagation in the blocks. By adopting this numerical strategy, a parametric study was carried out to simulated new design of blocks and to demonstrate that the load carrying capacity at serviceability limit state conditions can be significantly increased with the thickness of SSFRC block.

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Impact of sisal fiber reinforced concrete and its performance analysis: a review

Thomas¹,

Jose²

2019

Evol. Intel.

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Finite strip modeling of cementitious laminates reinforced with sisal fibers

Cited by 7 publications

References 25 publications

Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric

Effect of Number of Layers on Tensile and Flexural Behavior of Cementitious Composites Reinforced with a New Sisal Fabric

Short sisal fiber reinforced recycled concrete block for one-way precast concrete slabs

Impact of sisal fiber reinforced concrete and its performance analysis: a review

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