Vitreous Foam with Thermal Insulating Property Produced with the Addition of Waste Glass Powder and Rice Husk Ash

Fernando Antonio da Silva Fernandes (), Dayriane do Socorro de Oliveira Costa, Camilo Andrés Guerrero Martin and João Adriano Rossignolo
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Fernando Antonio da Silva Fernandes: Department of Biosystems Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil
Dayriane do Socorro de Oliveira Costa: Department of Engineering, Federal University of Rio de Janeiro, Rio de Janeiro 21941-853, RJ, Brazil
Camilo Andrés Guerrero Martin: Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of 7 Petroleum Engineering, Federal University of Pará, Salinópolis 68721-000, PA, Brazil
João Adriano Rossignolo: Department of Engineering, Federal University of Pará—Campus Salinópolis, Rua Raimundo Santana Cruz, S/N, Bairro São Tomé, Salinópolis 68721-000, PA, Brazil

Sustainability, 2023, vol. 15, issue 1, 1-13

Abstract: Closed pore glass foams with dimensions of 60mm × 20 mm × 20 mm were produced using agro-industrial residues. Samples containing sodo-calcic glass powder (78%wt) and rice husk ash (16%wt) were characterized, and their technological properties were investigated. The samples were synthesized in a conventional muffle furnace at 750–800–850 °C. The results presented for apparent density (0.24–0.29 g/cm 3 ), compressive strength (1.5–2.3 MPa) and thermal conductivity (0.021–0.025 W/mK) meet the standards for commercial foam glasses. Low viscosity was achieved at all temperatures as a result of the addition of rice husk ash to the cell structure. X-ray fluorescence showed that the glass was silico-sodo-calcic type (SiO 2 , Na 2 O and CaO), and that the rice husk ash was rich in SiO 2 (as well as CaO, Na 2 O, Al 2 O 3 , K 2 O and Fe 2 O 3 ). The mechanical strength and low thermal conduction of the material showed a good efficiency for use in civil construction as a thermal insulating material. Material made in this way has a lower production cost, and additionally transforms waste into co-products, generating added value, favoring consecutive circulation, as well as a clean and circular economy.

Keywords: agro-industrial waste; glass foam; thermal insulation; circular economy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2023:i:1:p:796-:d:1022501

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