EVA Lightweight Concrete Reinforced with Piassava Fiber

Souza, Thiago Francisco de; Lima, Paulo Roberto Lopes; Amado, Franco Dani Rico; Alvim, Rosana de Alburquerque Arleo; Santos, Felipe M.R. dos; Nunes, Danilo de Santana

doi:10.4028/www.scientific.net/amm.864.296

Cited by 3 publications

(2 citation statements)

References 20 publications

(22 reference statements)

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“…Untreated piassava fibers were used for the reinforcement of lightweight concrete containing 4% and 6% of ethylene-vinyl acetate to improve the flexural strength of the material [ 95 ]. It was observed that the addition of piassava fiber results in reduced compressive strength, but the presence of fiber has a positive influence on tensile strength.…”

Section: Properties and Importance Of Use In Cementitious Materialsmentioning

confidence: 99%

A Review of the Use of Natural Fibers in Cement Composites: Concepts, Applications and Brazilian History

Rocha¹,

Júnior²,

Marvila³

et al. 2022

Polymers

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The use of natural lignocellulosic fibers has become popular all over the world, as they are abundant, low-cost materials that favor a series of technological properties when used in cementitious composites. Due to its climate and geographic characteristics, Brazil has an abundant variety of natural fibers that have great potential for use in civil construction. The objective of this work is to present the main concepts about lignocellulosic fibers in cementitious composites, highlighting the innovation and advances in this topic in relation to countries such as Brazil, which has a worldwide prominence in the production of natural fibers. For this, some common characteristics of lignocellulosic fibers will be observed, such as their source, their proportion of natural polymers (biological structure of the fiber), their density and other mechanical characteristics. This information is compared with the mechanical characteristics of synthetic fibers to analyze the performance of composites reinforced with both types of fibers. Despite being inferior in tensile and flexural strength, composites made from vegetable fibers have an advantage in relation to their low density. The interface between the fiber and the composite matrix is what will define the final characteristics of the composite material. Due to this, different fibers (reinforcement materials) were analyzed in the literature in order to observe their characteristics in cementitious composites. Finally, the different surface treatments through which the fibers undergo will determine the fiber–matrix interface and the final characteristics of the cementitious composite.

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Section: Properties and Importance Of Use In Cementitious Materialsmentioning

confidence: 99%

A Review of the Use of Natural Fibers in Cement Composites: Concepts, Applications and Brazilian History

Rocha¹,

Júnior²,

Marvila³

et al. 2022

Polymers

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show abstract

“…In research [11], piassava fibers were used as reinforcement of (LWC) containing 4% and 6% of EVA, with the goal of improving the flexural strength of the material. The experimental results demonstrate that the addition of EVA decreases the density and flexural strength of the concrete in proportion to the amount of addition, but a recovery resistance is got when the piassava fibers are added in amounts of 1 to 2% by volume.…”

Section: Introductionmentioning

confidence: 99%

Effect of Using EVA as Partial Replacement for Coarse Aggregates on Concrete Properties

Mustafa

Ibrahim

Alradey

et al. 2021

FJES

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Ethylene-vinyl acetate (EVA), is the copolymer of ethylene and vinyl acetate. The weight percent of vinyl acetate usually varies from 10 to 40%, with the residuum being ethylene, also EVA is an elastomeric polymer that makes materials which are (rubber-like) in fineness and flexibility. In this study, EVA waste was used in the concrete mix instead of different percentages of coarse aggregates (5%, 8%, 10%, 12%) by volume. The concrete slump test was performed to measure the workability of freshly made concrete. The compression test was performed on all samples at 7 and 28 days. The results were compared with the standard mixture. It was concluded that EVA was a suitable material to replace coarse aggregates. Accordingly, the results of these experiments indicate that not only EVA can be noticed as aggregate in concrete, but also it will have more advantages in lightweight concrete than normal concrete. Using of EVA concrete shows decrease in slump for further replacement without compromising on strength. The best replacing ratio was 5% of aggregate.

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Study of the use of crushed sand in cementitious composites with EVA and piassava fibers

Moreira

Souza

Pessôa

et al. 2020

Construction and Building Materials

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EVA Lightweight Concrete Reinforced with Piassava Fiber

Cited by 3 publications

References 20 publications

A Review of the Use of Natural Fibers in Cement Composites: Concepts, Applications and Brazilian History

A Review of the Use of Natural Fibers in Cement Composites: Concepts, Applications and Brazilian History

Effect of Using EVA as Partial Replacement for Coarse Aggregates on Concrete Properties

Study of the use of crushed sand in cementitious composites with EVA and piassava fibers

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