Effect of Sisal Fiber Hornification on the Fiber-Matrix Bonding Characteristics and Bending Behavior of Cement Based Composites

Ferreira, Saulo Rocha; Lima, Paulo Roberto Lopes; Silva, Flávio Andrade; Filho, Romildo Dias Toledo

doi:10.4028/www.scientific.net/kem.600.421

Cited by 64 publications

(47 citation statements)

References 20 publications

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“…A well-balanced interaction between the cement matrix and the fibers which allows fiber debonding and pull-out as well as the stress transfer from the matrix to the fibers is necessary to obtain cellulose cement composites with high toughness. Although significant research has been performed to quantitatively determine the bond adhesion of man-made fibers with cement matrices, only a few studies have been focused on vegetable fibers [46,68].…”

Section: Cellulosic Fiber-cement Matrix Bondingmentioning

confidence: 99%

Cellulosic fiber reinforced cement-based composites: A review of recent research

Raso

Claramunt

Filho

2015

Construction and Building Materials

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571

229

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Section: Cellulosic Fiber-cement Matrix Bondingmentioning

confidence: 99%

Cellulosic fiber reinforced cement-based composites: A review of recent research

Raso

Claramunt

Filho

2015

Construction and Building Materials

Self Cite

571

229

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“…Ferreira et al (72). investigated the effect of sisal hornification on fiber-matrix bonding characteristics and bending behaviour of cement-based composites.…”

Section: Thermal Treatment Of the Vegetable Fibersmentioning

confidence: 99%

Non-conventional cement-based composites reinforced with vegetable fibers: A review of strategies to improve durability

et al. 2015

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The present review shows the state-of-art on the approachs about improving the processing, physical-mechanical performance and durability of non-conventional fiber-cement composites. The objective of this review is to show some of these strategies to mitigate the degradation of the vegetable fibers used as reinforcement in cost-effective and non-conventional fiber-cement and, consequently, to improve their mechanical and durability properties for applications in the housing construction. Beyond the introduction about vegetable fibers, the content of this review is divided in the following sections: (i) surface modification of the fibers; (ii) improving fiber-to-cement interface; (iii) natural pozzolans; (iv) accelerated carbonation; (v) applications of nanoscience; and (vi) principles of functionally graded materials and extrusion process were briefly discussed with focus on future research needs. RESUMEN: Compuestos cementantes no convencionales reforzados con fibras vegetales: Una revisión de estrategias para mejorar la durabilidad.La presente revisión explora la actualidad en el campo de los compuestos de fibrocemento no convencionales en relación a mejoras en el proceso productivo, el rendimiento físico-mecánico y la durabilidad. El objetivo de esta revisión es exponer algunas estrategias para mitigar la degradación de las fibras vegetales utilizadas como refuerzo en fibrocementos no convencionales y rentables, obteniendo en consecuencia una mejoría en el rendimiento de sus propiedades mecánicas y durabilidad para su aplicación en el área de la construcción de viviendas. Además de la introducción en relación a las fibras vegetales, el contenido de esta revisión se divide en las siguientes secciones: (i) modificación de la superficie de las fibras; (ii) mejoramiento de la interfaz fibra-cemento; (iii) puzolanas naturales; (iv) carbonatación acelerada; (v) aplicaciones de la nanociencia; y (vi) principios de los materiales funcionalmente graduados y el proceso de extrusión fueron discutidos brevemente con un enfoque a investigaciones futuras.

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“…Nevertheless the use of vegetable fibers also presents some problems such as high water absorption and low durability in alkaline media and this can lead to fiber mineralization and low adhesion with cementitious matrices [1][2][3]. In order to overcome these problems some different strategies can be used, in an isolated or associated way, among them the most important are (i) The use of calcium hydroxide (Ca(OH) 2 ) free matrices, which is replacing some cement for some clay preventing excess of Ca(OH) 2 in the matrix…”

Section: Introductionmentioning

confidence: 99%

Impact of Alkaline Hornification in Jute Fibers on the Tensile Strength

Rd¹,

Ferreira²,

GE³

et al. 2017

MOJPS

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Wetting and drying cycles are usually used in the paper and cellulose industry aiming to achieve a reduction in the water absorption capacity of lignocellulosic fibers. This procedure stiffens the polymeric structure of the fiber-cells (process known as hornification) resulting in a higher dimensional stability. Several authors have proposed treatments in natural fibers, including hornification, that modifies the surface of the fibers and increase the mechanical behavior. The present study presents a comprehensive analysis of the influence of alkaline hornification with calcium hydroxide 0.7% (1 cycle) on the structure modification, mechanical response, durability performance and bond behavior of jute fibers. The intrinsic changes on the fiber structure as well as their physical and chemical characteristics were evaluated through analytical techniques such as X-ray diffraction (XRD), Thermogravimetry (TGA), Fourier Transformed Infrared (FTIR) and Scanning Electronic Microscope (SEM), while their mechanical response was evaluated with direct tensile tests. The obtained results indicate that the hornification process removes partially the lignin and hemicelluloses from jute fibers, which changes the fiber properties, increasing their crystallinity, altering their morphology, by an increase in the thickness of the secondary fiber wall and reduction of the lumen, and increasing their mechanical resistance.

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Effect of Sisal Fiber Hornification on the Fiber-Matrix Bonding Characteristics and Bending Behavior of Cement Based Composites

Cited by 64 publications

References 20 publications

Cellulosic fiber reinforced cement-based composites: A review of recent research

Cellulosic fiber reinforced cement-based composites: A review of recent research

Non-conventional cement-based composites reinforced with vegetable fibers: A review of strategies to improve durability

Impact of Alkaline Hornification in Jute Fibers on the Tensile Strength

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