Insulation material production from onion skin and peanut shell fibres, fly ash, pumice, perlite, barite, cement and gypsum

• Published in: Materials today communications Vol. 10; pp. 14 - 24
• Main Authors: Binici, Hanifi, Aksogan, Orhan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.03.2017
• Subjects: Barite; Insulation; Onion skin; Peanut shell; Radioactivity; Insulation; Onion skin; Barite; Peanut shell; Radioactivity
• ISSN: 2352-4928; 2352-4928
• DOI: 10.1016/j.mtcomm.2016.09.004

[Display omitted] Onions skins, peanut shells, pumice, perlite and barite used in this study. This study examines the suitability of fly ash, pumice, perlite, barite, cement and gypsum along with onion skin and peanut shell fibers as an insulating material. Apparent specific gravities, water absorption rates, flexure and compressive strengths of the prepared samples were determined. Moreover, thermal conductivity, ultrasonic sound penetration coefficient and radioactive relative permeability values were, also, investigated. The latter three properties of the samples produced with barite, pumice, perlite, onion skins and peanut shells were observed to be low. Consequently, this composite can be used in various situations because of its improved thermal conductivity feature, especially, as coating material in offices which are exposed to radiation a lot. Moreover, it can, also, be used for the radiation insulation of the walls of the radiation units of hospitals.