Fire resistance of composite made with waste cardboard, gypsum, pumice, perlite, vermiculite and zeolite

Abstract

Abstract: In this study, the fire resistance of composites made by waste cardboard, gypsum, pumice, perlite, vermiculite and zeolite is investigated. The bulk density, water absorption rate, thermal conductivity and ultrasound transmission velocities of the samples were determined. The results showed that these composites had very low thermal conductivity and ultrasound transmission velocity. Furthermore, the longest burning time was obtained from triple mixtures. On the other hand, the shortest burning time happened to be for dual mixtures, particularly those with gypsum and perlite. Finally, it was concluded that composites obtained by dual, triple mixtures of waste cardboard, gypsum, pumice, perlite, vermiculite and zeolite provided enough resistance to fire and retarded burning. Graphic abstract: [Figure not available: see fulltext.].