Improvement in fire prevention performance of cork-gypsum decorative materials by applying porous waste

Abstract

This study developed cork-gypsum decorative materials and discussed its fire prevention performance. The material modification method combined cork, calcium carbonate powder, gypsum, and water for pressure forming. By the production of materials and experimental tests, this study modified cork-gypsum decorative materials, which includes fire prevention characteristics, while retaining the cork-gypsum material properties. In addition, this study compared the modified materials of different compositions and explored their benefits. In this study, CNS 7332 and ASTM E1354 testing standards were employed to analyze thermal conductivity, fire prevention performance and the basic properties of various samples. Results indicated that all samples have good thermal insulation and the waste calcium carbonate powder has influence on ignition time, heat release rate, and the CO concentration in all samples. The samples have better fire retardant effects with increasing percentages of calcium carbonate powder, and produce higher carbon monoxide in the initial burning with a higher content of cork. This study revealed that porous waste significantly retards fire in cork-gypsum decorative material properties. Key words: Cork-gypsum, decorative material, calcium carbonate, fire prevention performance, basic property.