Brzyski Przemysław, Gleń Piotr, Gładecki Mateusz, Rumińska Monika, Suchorab Zbigniew, Łagód Grzegorz
Faculty of Civil Engineering and Architecture, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland.
Faculty of Environmental Engineering, Lublin University of Technology, Nadbystrzycka 40B, 20-618 Lublin, Poland.
Materials (Basel). 2021 Aug 17;14(16):4629. doi: 10.3390/ma14164629.
The aim of the research presented in the article was to check the differences in the hygro-thermal and mechanical properties of hemp-lime composites with different shives fractions, depending on the direction of mixture compaction. The research part of the paper presents the preparation method and investigation on the composites. Thermal conductivity, capillary uptake, as well as flexural and compressive strengths were examined. Additionally, an analysis of the temperature distribution in the external wall insulated with the tested composites was performed. The results confirm that the direction of compaction influences the individual properties of the composites in a similar way, depending on the size of the shives. The differences are more pronounced in the case of the composite containing longer fractions of shives. Both thermal conductivity of the material and the capillary uptake ability are lower in the parallel direction of the compaction process. Composites exhibit greater stiffness, but they fail faster with increasing loads when loaded in the direction perpendicular to compaction.
本文所呈现的研究目的是检验不同木片比例的麻石灰复合材料在湿热和力学性能方面的差异，具体取决于混合物压实的方向。论文的研究部分介绍了复合材料的制备方法和研究情况。对热导率、毛细吸水率以及抗弯强度和抗压强度进行了检测。此外，还对用测试复合材料隔热的外墙中的温度分布进行了分析。结果证实，压实方向以类似方式影响复合材料的各项性能，这取决于木片的尺寸。在含有较长木片比例的复合材料中，差异更为明显。在压实过程的平行方向上，材料的热导率和毛细吸水能力均较低。复合材料表现出更大的刚度，但在垂直于压实方向加载时，随着载荷增加，它们失效得更快。
