Pacher Thomas, Barbu Marius Cătălin, Urstöger Johannes, Petutschnigg Alexander, Tudor Eugenia Mariana
Forest Products Technology and Timber Construction Department, Salzburg University of Applied Sciences, Markt 136 a, 5431 Kuchl, Austria.
Faculty of Furniture Design and Wood Engineering, Transylvania University of Brasov, B-dul. Eroilor nr. 29, 500036 Brasov, Romania.
Polymers (Basel). 2022 Apr 4;14(7):1469. doi: 10.3390/polym14071469.
The aim of this study is to investigate the production of fire-resistant panels made out of bark from spruce (), larch ( Mill.) and cement. This research included test panels produced from bark, cement, water and cement-bonded recycling material aiming for the target density of 750 kg/m. The physical (density, dimension stability, thickness swelling) and mechanical properties such as tensile strength and compressive strength together with fire resistance were tested. Considering the results, appealing values have been achieved: max. compressive strength: 3.42 N/mm; max. thickness swelling: 5.48%; and density: 515 to 791 kg/m. In principle, the properties of the produced panels depend not only on the density, but also on the hydration and, above all, on the compaction and the composition of the boards. The fire tests demonstrated that the produced panels have an enormous potential in terms of fire resistance and could be utilized for fire-retardant applications.
本研究的目的是研究由云杉树皮、落叶松树皮和水泥制成的防火板的生产。这项研究包括由树皮、水泥、水和水泥粘结回收材料制成的测试板，目标密度为750千克/立方米。测试了物理性能（密度、尺寸稳定性、厚度膨胀）和机械性能，如拉伸强度和抗压强度以及耐火性。考虑到结果，已获得了吸引人的值：最大抗压强度：3.42牛/平方毫米；最大厚度膨胀：5.48%；密度：515至791千克/立方米。原则上，所生产板材的性能不仅取决于密度，还取决于水合作用，最重要的是取决于板材的压实度和组成。防火测试表明，所生产的板材在耐火性方面具有巨大潜力，可用于防火应用。
