Use of coconut fibre reinforced concrete and coconut-fibre ropes for seismic-resistant construction

Ali, Majid

doi:10.3989/mc.2016.01015

Cited by 22 publications

(8 citation statements)

References 25 publications

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“…Peroxide-initiated free radicals react with fiber and matrix hydroxyl. Therefore, peroxide treatment-based on the results of Thyavihalli et al [6], Ali et al [76], and Kumar et al [63]-improves reinforcement-polymer interface properties, slows down the absorption of moisture, and improves thermal stability by reducing the hydrophilic nature of the fibers, increasing the resistance of the compounds, and providing greater thermal stability.…”

Section: Chemical Treatmentsmentioning

confidence: 99%

Recycling of Residual Polymers Reinforced with Natural Fibers as a Sustainable Alternative: A Review

2021

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The latest advances in green alternatives are being addressed with bio-based solutions, with uses and applications in new areas due to their wide potential, low cost, lightness, renewability, biodegradability, impact toughness, fatigue resistance, and other specific properties. Natural fibers are sustainable materials that have led researchers to test their viability as alternative reinforcements in residual polymers to meet required engineering specifications; therefore, it is essential to continue making progress in replacing conventional materials. This review is expected to provide an overview of the current scopes and future prospects of biocomposites from polymers reinforced with natural fibers with a focus on the following: i. recycling of residual polymers; ii. available natural fibers and their components in the context of engineering applications; iii. the behavior of the structural modifications of the natural fibers with the physical and chemical treatments in the matrix interaction as reinforcements of the residual polymers; and iv. applications for the development of innovative, efficient, and sustainable solutions for successful, environmentally responsible products.

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Section: Chemical Treatmentsmentioning

confidence: 99%

Recycling of Residual Polymers Reinforced with Natural Fibers as a Sustainable Alternative: A Review

2021

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“…Eventually, the macro-cracks lead to the failure of the structural members (1)(2)(3). The various fibers with different dimensions and properties are generally added into cement-based composites to restrict the growth of cracks at different stages in the failure process; and improve its strength, toughness and ductility (1,(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15). But the high cost of fibers limited the large-scale construction project for the applications of fiber reinforced cement-based composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

Cao

Khan

2018

Mater. construcc.

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Nowadays researchers are developing a new hybrid fiber reinforced cement-based composites (HyFRCC). The new HyFRCC can restrain micro-cracking, improves compressive and flexural performance of beams by addition of calcium carbonate (CaCO 3 ) whisker, polyvinyl alcohol (PVA) fiber and steel fiber. In this work, a mix optimization procedure is shown for multi-scale HyFRCC, with steel, PVA fiber and CaCO 3 whisker. The new HyFRCC is explored with addition of coarse sand to further improve its mechanical properties. Additionally, the flexural performance of beam and slabs has been investigated to optimize sand gradation and fiber combination in new HyFRCC. The compressive strength, flexural strength, flexural behavior, flexural toughness, equivalent flexural strength and deflection-hardening behavior of beams and slabs are improved with optimized content of sand gradation, fibers and CaCO 3 whisker. The HyFRCC slab with 1.5% steel fiber, 0.4% PVA fiber, 1% CaCO 3 whisker and optimized coarse sand showed overall best properties. Citation/Citar como: Cao, M.; Li, L.; Khan, M. (2018) Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites. Mater. Construcc. 68 [330], e156 https://doi.org/10.3989/ mc.2018.01717 RESUMEN:Effecto de fibras híbridas, filamentos de carbonato cálcico y arena gruesa en las propiedades mecánicas de cementos compuestos. En la actualidad se están desarrollando nuevos cementos compuestos reforzados con fibras híbridas (HyFRCC, por sus siglas en inglés). Estos nuevos cementos HyFRCC pueden impedir la microfisuración y aumentar la resistencia a compresión y flexotracción de las vigas, mediante la incorporación de filamentos de carbonato cálcico (CaCO 3 ), fibras de alcohol polivinílico (PVA) y fibras de acero. En este trabajo se plantea un procedimiento para optimizar la proporción de fibras (de acero y de PVA) y filamentos (de CaCO 3 ) en un nuevo HyFRCC. Se investiga la influencia de la arena gruesa en sus propiedades mecánicas, además de la resistencia a flexotracción de vigas y forjados a fin de adecuar la granulometría de la arena y la combinación de fibras en el nuevo material. Un buen ajuste entre el contenido y la granulometría de la arena y la proporción de las fibras y de los filamentos de CaCO 3 permite: incrementar la resistencia tanto a compresión como a flexotracción, la tenacidad a flexotracción y la resistencia a flexotracción equivalente; perfeccionar el comportamiento a flexión; y reducir la flecha de vigas y forjados endurecidos. La mezcla que mejores resultados arroja en conjunto contiene 1,5 % de fibras de acero, 0,4 % de fibras de PVA, 1 % de filamentos de CaCO 3 y arena gruesa optimizada. PALABRAS CLAVE: Composite; Microfisuras; Carbonato cálcico; Resistencias a compresión; Resistencias a flexión ORCID ID: M. Cao

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“…The enhancement in the energy-absorbing capacity of brittle concrete can be achieved by using plant fibers in it [168,223,224]. Researchers have used plant fibers-such as banana, vakka, wheat straw, ramie bast, pineapple leaf, jute, abaca leaf, kenaf bast, flax, coir, palm, hibiscus cannabinus, elephant grass, bamboo, malva, sisal, guaruman, sansevieria leaf, piassava, hemp, sugarcane, and date-as dispersed reinforcements in cementitious composites for different civil engineering applications, as an alternative replacement for artificial/steel fibers [43,183,[225][226][227][228][229][230][231][232][233][234][235][236][237]. Ali et al [66] evaluated the dynamic and mechanical properties of coconut-fiber-reinforced concrete for possible application in earthquake-resistant housing.…”

Section: Application Of Plant Fibers As Construction and Building Mat...mentioning

confidence: 99%

A Comprehensive Review of Types, Properties, Treatment Methods and Application of Plant Fibers in Construction and Building Materials

et al. 2022

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Sustainable development involves the usage of alternative sustainable materials in order to sustain the excessive depletion of natural resources. Plant fibers, as a “green” material, are progressively gaining the attention of various researchers in the field of construction for their potential use in composites for stepping towards sustainable development. This study aims to provide a scientometric review of the summarized background of plant fibers and their applications as construction and building materials. Studies from the past two decades are summarized. Quantitative assessment of research progress is made by using connections and maps between bibliometric data that are compiled for the analysis of plant fibers using Scopus. Data refinement techniques are also used. Plant fibers are potentially used to enhance the mechanical properties of a composite. It is revealed from the literature that plant-fiber-reinforced composites have comparable properties in comparison to composites reinforced with artificial/steel fibers for civil engineering applications, such as construction materials, bridge piers, canal linings, soil reinforcement, pavements, acoustic treatment, insulation materials, etc. However, the biodegradable nature of plant fibers is still a hindrance to their application as a structural material. For this purpose, different surface and chemical treatment methods have been proposed in past studies to improve their durability. It can be surmised from the gathered data that the compressive and flexural strengths of plant-fiber-reinforced cementitious composites are increased by up to 43% and 67%, respectively, with respect to a reference composite. In the literature, alkaline treatment has been reported as an effective and economical method for treating plant fibers. Environmental degradation due to excessive consumption of natural resources and fossil fuels for the construction industry, along with the burning of waste plant fibers, can be reduced by incorporating said fibers in cementitious composites to reduce landfill pollution and, ultimately, achieve sustainable development.

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Use of coconut fibre reinforced concrete and coconut-fibre ropes for seismic-resistant construction

Cited by 22 publications

References 25 publications

Recycling of Residual Polymers Reinforced with Natural Fibers as a Sustainable Alternative: A Review

Recycling of Residual Polymers Reinforced with Natural Fibers as a Sustainable Alternative: A Review

Effect of hybrid fibers, calcium carbonate whisker and coarse sand on mechanical properties of cement-based composites

A Comprehensive Review of Types, Properties, Treatment Methods and Application of Plant Fibers in Construction and Building Materials

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