Modification of short sugarcane bagasse fibres for application in cementitious composites: A statistical approach to mechanical and physical properties

Santos, Armando Martins dos; Cardoso, Flávio Gatti; Silva, Rodrigo José da; Gorgulho, Honória de Fátima; Panzera, Túlio Hallak

doi:10.1016/j.conbuildmat.2022.129072

Cited by 12 publications

(6 citation statements)

References 52 publications

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“…They demonstrated that the presence of the cellulosic fibers, uniformly distributed without any clumping, enhanced the bonding between the cementitious materials in the concrete. In the SEM examination carried out by dos Santos et al [ 83 ] to explore the influence of sugarcane bagasse fibers in mortar, a consistent dispersion of the fibers within the mortar matrix was noted. This uniform distribution resulted in a robust connection between the fibers and the cementitious substance.…”

Section: Resultsmentioning

confidence: 99%

Mechanical, Durability, and Microstructure Assessment of Wastepaper Fiber-Reinforced Concrete Containing Metakaolin

Valizadeh Kiamahalleh,

Gholampour,

Rezaei Shahmirzadi

et al. 2024

Materials

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This study evaluates the potential use of discarded plasterboard paper as fibers from buildings to reinforce concrete. Various concentrations of wastepaper fibers (0.5%, 1%, 1.5%, 2%, and 2.5% by weight of the binder) were investigated in this research. To mitigate the water absorption effect of the paper fibers, metakaolin was employed as a partial cement replacement. The results demonstrate that the inclusion of the wastepaper fiber enhances the mechanical and durability performance of the concrete. The optimal fiber proportion was identified as 1%, leading to a 29% increase in the compressive strength, a 38% increase in the splitting tensile strength, a 12% decrease in the water absorption, and a 23% decrease in the drying shrinkage with respect to the concrete containing 20% metakaolin. However, exceeding this optimal fiber content results in decreased mechanical and durability properties due to the fiber agglomeration and non-uniform fiber distribution within the concrete matrix. Based on the microstructural analysis, the improved performance of the concrete is ascribed to decreased porosity, more refined pore structure, and reduced propagation of microcracks within the concrete matrix in the presence of wastepaper fiber. According to the results, concrete containing 20% metakaolin and 1% wastepaper fiber exhibits durability and mechanical properties comparable to those of the traditional concrete. This finding highlights the significant promise of reducing dependency on conventional cement and incorporating suitable recycled materials, such as discarded plasterboard, and secondary by-products like metakaolin. Such a strategy encourages the preservation of resources, reduction in carbon dioxide emissions, and a decrease in the ecological footprint resulting from concrete production.

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Section: Resultsmentioning

confidence: 99%

Mechanical, Durability, and Microstructure Assessment of Wastepaper Fiber-Reinforced Concrete Containing Metakaolin

Valizadeh Kiamahalleh,

Gholampour,

Rezaei Shahmirzadi

et al. 2024

Materials

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“…Santos et al (2022) compared composites reinforced with sugarcane bagasse fibers with and without chemical treatment. Fiber treatment significantly influences most of the physical and mechanical properties; it increases the strength and tenacity, water absorption, and porosity with an increase in the amount of fiber, making it difficult to treat and use them [197]. Hernández-Olivares et al (2020) studied the effects of pretreatment of sugarcane fibers; pretreatment proved to be practical, cheap, and straightforward, increasing the hardness of the composites following carbonation; this offered excellent acoustic and thermal insulation [198].…”

Section: Sugarcane Bagasse In Civil Constructionmentioning

confidence: 99%

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

Hiranobe,

Gomes,

Paiva

et al. 2024

Clean Technol.

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Sugarcane has primarily been used for sugar and ethanol production. It creates large quantities of residual lignocellulosic biomass such as sugarcane bagasse, leaves, tops, and vinasse. Biomass is a sustainable prospect for biorefineries aiming to optimize production processes. We detail recent research developments in recycling sugarcane, including energy generation and pyrolysis to obtain biofuels, for example. To produce biochar, the energy cost of operating at high temperatures and large-scale production remain as obstacles. The energy generation prospects can be enhanced by pellet production; however, it requires an improvement in quality control for long-term storage or long-distance transportation. In civil construction, the materials still need to prove their long-term efficiency and reliability. Related to adsorbent materials, the use of sugarcane bagasse has the advantage of being low-cost and environmentally friendly. Nevertheless, the extraction, functionalization, and modification of cellulose fibers, to improve their adsorption properties or even mode of operation, still challenges. The synthesis of nanostructures is still lacking high yields and the ability to scale up. Finally, controlling dispersion and orientation and avoiding fiber agglomeration could improve the mechanical response of composites using sugarcane bagasse. The different possibilities for using sugarcane and its residues reinforce the importance of this material for the industry and the global economy. Thus, the present work addresses current challenges and perspectives of different industrial processes involving sugarcane aiming to support future research on waste-derived subjects.

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“…Other natural fibers have also been studied, notably straw, sisal, jute, bagasse…etc. [25][26][27][28][29][30][31]. In Algeria, studies on the use of plant fibers in concrete and mortar are recent.…”

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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Modification of short sugarcane bagasse fibres for application in cementitious composites: A statistical approach to mechanical and physical properties

Cited by 12 publications

References 52 publications

Mechanical, Durability, and Microstructure Assessment of Wastepaper Fiber-Reinforced Concrete Containing Metakaolin

Mechanical, Durability, and Microstructure Assessment of Wastepaper Fiber-Reinforced Concrete Containing Metakaolin

Sugarcane Bagasse: Challenges and Opportunities for Waste Recycling

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

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