Cement Mortar Reinforced with Palm Nuts Naturals Fibers: Study of the Mechanical Properties

Fokam, Christian Bopda; Toumi, Eric; Kenmeugné, Bienvenu; Meva’a, Lucien; Mansouri, Khalifa

doi:10.18280/rcma.300102

Cited by 4 publications

(9 citation statements)

References 13 publications

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“…Experimental results revealed an improvement in both compressive and tensile strengths, with an increase of 6% (24.23 MPa) and 24% (3.39 MPa) with respect to the control specimens. A study of Fokam et al [11] focused on cement mortar reinforced with palm nut fibers with a volume fraction between 0.5% and 3%. Results showed that compressive strength decreased from 42.4 MPa for the control specimens (0% fiber) to 31.1 MPa for the specimens, with 3% fibers.…”

Section: Introductionmentioning

confidence: 99%

Vegetal Fiber Additives in Mortars: Experimental Characterization of Thermal and Acoustic Properties

et al. 2022

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This paper investigates the influence of adding vegetal fibers on thermal and acoustic performance based on natural hydraulic lime. Mortar samples with 10% weight of vegetal fibers were fabricated adding water to obtain easily workable mortars with good consistency; their performance was compared to mortar samples without vegetal fibers. The fibers were of different types (rice husk, spelt bran, and Khorasan (turanicum) wheat chaff) and size (as-found and ground form). Thermal performance was measured with the Small Hot Box experimental apparatus. Thermal conductivity was reduced in the 1–11% range (with Khorasan wheat chaff and rice husk); no significant reduction was found with spelled bran in the mixture. When ground, fibers were characterized by both good thermal and acoustic absorption performance; a reduction of 6–22% in thermal conductivity λ was achieved with spelled bran (λ = 0.64 W/mK) and rice husks (λ = 0.53 W/mK), whereas the Khorasan wheat chaff had the highest sound absorption average index (0.38). However, the addition of fibers reduced sound insulation properties due to their low weight densities. This reduction was limited for rice husks (transmission loss value was only 2 dB lower than the reference).

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Section: Introductionmentioning

confidence: 99%

Vegetal Fiber Additives in Mortars: Experimental Characterization of Thermal and Acoustic Properties

et al. 2022

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“… Comparative results of flexural strength of different natural fiber additions in cement composites [ 3 , 12 , 24 , 28 , 33 , 53 , 81 ]. …”

Section: Figurementioning

confidence: 99%

“…On the other hand, natural fibers have biodegradability, non-toxicity, easy availability, non-abrasiveness, low density, low cost, good specific strength, and great resistance to corrosion and fatigue. However, natural fibers also have disadvantages such as loss of workability, fiber degradation, and material heterogeneity [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

“…Geopolymer composites of fly ash with pineapple fibers showed an improvement in compressive strength, reaching 41.5 MPa and a flexural strength of 9.2 MPa. The reference without fibers presented a compressive strength of 12 MPa and flexural strength of 6 MPa [ 10 ]; coconut fibers treated in alkaline medium increase its ductility associated with the reduction in lignin with this treatment [ 11 ]; although it was difficult to homogenize with cementitious composites, the addition of 10–15 mm long jute fibers contributes to an increase in compressive, flexural, and tensile strength when it was equally distributed [ 12 ]; palm nuts showed an improvement in flexural strength [ 3 ]; palm fibers reduced the appearance of cracks due to the modification of the surface fiber after treatment [ 13 ]; açai fibers reduced the density of the hardened mortar and increased the flexural strength provided by a great interface between fiber and cementitious composite [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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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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“…Raw earth bricks reinforced with straw are an example. However, the transition from the traditional clay matrix to the cement matrix is relatively recent, yet plant fibers are locally available, renewable, less polluting [1][2][3][4][5][6][7] and require little energy for their transformation compared to synthetic fibers [8][9][10][11][12]. The reinforcement of mortars and concretes with fibers dates back to the beginning of the 19th century [13] and the use of vegetable fibers in these materials dates back to the seventies of the 19th century, when the first works aimed to replace asbestos fiber in the elements prefabricated [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of date palm and polypropylene fibers on the characteristics of self-compacting concretes: comparative study

Derdour

Behim

Benzerara

2023

Frattura Ed Integrità Strutturale

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This article presents the results of a comparative experimental study on the influence of date palm fibers to replace polypropylene fibers used as reinforcement in self-compacting concrete (SCC). Indeed, the use of polypropylene fibers makes it possible to reduce the plastic shrinkage of concrete. Date palm fibers have mechanical characteristics (tensile strength and elasticity modulus) largely sufficient to replace polypropylene fibers. The use of natural fibers has several advantages, they are natural, renewable, have no affect the environment and require little energy for their transformation, unlike synthetic fibers. In this comparative study, polypropylene fiber is used as control material and date palm fiber as study material. The results obtained show that the two types of fibers decrease the fluidity and the compressive strength but increase the flexural strength and decrease the shrinkage. Date palm fibers delay the appearance of cracks more than polypropylene fibers. Date palm fibers guarantee the best results of SCCs in fresh and hardened state

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Cement Mortar Reinforced with Palm Nuts Naturals Fibers: Study of the Mechanical Properties

Cited by 4 publications

References 13 publications

Vegetal Fiber Additives in Mortars: Experimental Characterization of Thermal and Acoustic Properties

Vegetal Fiber Additives in Mortars: Experimental Characterization of Thermal and Acoustic Properties

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

Effect of date palm and polypropylene fibers on the characteristics of self-compacting concretes: comparative study

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