Application of rice husk in the development of new composite boards

António, Julieta; Tadeu, A.; Marques, Beatriz; Almeida, João; Pinto, V.S.

doi:10.1016/j.conbuildmat.2018.05.028

Cited by 76 publications

(41 citation statements)

References 23 publications

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“…Biomass is a qualified raw material for the preparation of carbonaceous materials, since it is available in abundance, besides being a renewable resource. Different materials based on biomass are being studied for applications in different areas, such as: composite rice husks and expanded cork granules and recycled tire rubber for civil construction 3 ; activated carbon produced from bamboo 4 ; carbon aerogels produced from starch as electrode material for supercapacitors 5 ; barley straw 6 e cellulose 7 as adsorbents for the removal of oils, among others.…”

Section: Introductionmentioning

confidence: 99%

Production of Carbon Foams from Rice Husk

et al. 2019

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The production of a material with rigid, multifunctional three-dimensional porous structure at a low cost is still challenging to date. In this work, a light and rigid carbon foam was prepared using rice husk as the basic element through a simple fermentation process followed by carbonization. For the fermentation process, the amount of biological yeast (7.5 g for the carbon foam CA-1P and 5 g for the carbon foam CA-2P) was used to evaluate its influence on the morphology of the foams. In order to prove that the heat treatment made in the foam alters the hydrophilic character of the rice husk foam, a chemical treatment with steam deposition was carried out. The foams were characterized by the following analyzes: apparent density, micrograph, thermogravimetry, contact angle, water sorption capacity and thermal conductivity. Visually, the CA-1P foams presented a structure with larger pores due to the greater amount of yeast used in its formulation. The heat treatment of rice potato foams proved to be as efficient as the chemical treatment for water contact angle above 90º, proving the ability of the foams to repel water/moisture. The thermal conductivity of the foams (0.029 and 0.026 W m-1 K-1 for CA-1P and CA-2P, respectively) was close to the conductivity of polyurethane foams (0.032 W m-1 K-1). Thus, the method used in the production of the carbon foams produced from the rice husk proved to be effective. In addition, the foams produced have the potential to be used for thermal insulation.

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Section: Introductionmentioning

confidence: 99%

Production of Carbon Foams from Rice Husk

et al. 2019

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“…Muthuraj et al (2019) tested rice husk as an additive to produce composite: with a density of 378 kg m −3 , rice showed the lowest TC value of 0.08 W m −1 K −1 . Due to its structure and chemical composition, rice husk can be mixed with many different materials: for example, a complex insulation material made from carbonized rice hull and glass wool (Yin et al, 2018) or incorporating rice husks with expanded cork and recycled rubber granules, with a TC varying from 0.060 to 0.074 W m −1 K −1 and tested values of weighted reduction in impact sound pressure level ranging from 20 dB to 27 dB (António et al, 2018). Among other building applications, rice husk and related ashes are commonly added to clay in brick production (Kazmi et al, 2016) or enhanced concrete (Elakkiah, 2019).…”

Section: Physical Propertiesmentioning

confidence: 99%

Valorization of agro-industry residues in the building and environmental sector: A review

et al. 2020

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Environmental pollution has become a relevant issue as the population rises and resources decrease. Reuse and recycling still have the greatest potential as they turn the waste into a new resource, representing the ‘closed-loop’ step of a circular economy (CE). Looking for new applications for agro-industry waste represents both an environmental issue, as its incorrect disposal is a cause of pollution, and a chance to exploit zero-cost natural wastes. The present review, with around 200 articles examined, focuses on possible reuses of these residues in (a) building construction, as additives to produce thermal and acoustic insulation panels, and (b) in water treatments, exploited for removal of pollutants. The selected materials (coconut, coffee, corn, cotton and rice) have industry production wastes with suitable applications in both sectors and huge worldwide availability; their reuse may thus represent a new resource, with an impact based on the production rate and the possible replacement of current inorganic materials. Along with possible implementation of the selected materials in the building industry and environmental engineering, a brief description of the production and supply chain are provided.

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“…RH may be used as brick kilns, in the rice parboiling process, in a furnace, raw material for sodium silicate production, cleaning and polishing agent in metals, and various machine industries [75,76]. Use of RH has been proposed for building materials like panels and boards paving the way for replacement of wood which has been used traditionally [77,78]. Antunes et al Developed panels using Rice Husk and earth and improved properties were observed ranging from tensile, compressive strength to moisture absorption.…”

Section: Application Of Rh Based Compositesmentioning

confidence: 99%

Rice husk as a fibre in composites: A review

Bisht

Gope

Rani

2020

Journal of the Mechanical Behavior of Materials

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In the last decade due to ever growing environmental concerns, use of natural fibres as fibre materials has gained momentum and acceptance. Natural fibres provide advantage of being economical and environment friendly at the same time. Rice husk, an agricultural waste is being utilized as a natural fibre for development of bio-composites. Present paper attempts to understand the applicability of rice husk as a fibre with various polymers based on the recent research works. It also throws light on various modification techniques that can further enhance the associated mechanical properties by altering the chemical and physical properties of husk. The paper may assist in understanding the phenomenon associated in manufacture of rice husk based bio-composite and provide a critical insight to the future applications of rice husk.

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Application of rice husk in the development of new composite boards

Cited by 76 publications

References 23 publications

Production of Carbon Foams from Rice Husk

Production of Carbon Foams from Rice Husk

Valorization of agro-industry residues in the building and environmental sector: A review

Rice husk as a fibre in composites: A review

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