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Effect of flax shives content and size on the hygrothermal and mechanical properties of flax concrete
Construction and Building Materials ( IF 7.4 ) Pub Date : 2020-07-13 , DOI: 10.1016/j.conbuildmat.2020.120077
Ferhat Benmahiddine , Rachid Cherif , Fares Bennai , Rafik Belarbi , Abdelkader Tahakourt , Kamilia Abahri

This paper presents an experimental investigation of the hygrothermal and mechanical properties of green concrete containing different content and size of flax shives. This allows it to respond to different applications in the building domain. Results of microscopic observations by using scanning electron microscopy show that the flax shives have a very complex and porous microstructure. The latter allowed for good hydric and thermal behaviour with a high moisture buffer capacity of which the minimum and maximum were 2.03 and 2.82, respectively. This allows it to be classified as an excellent moisture regulator. Flax concrete with a mass composition of 14.5% of flax shives in bulk, 35% of binder (tradical PF70) and a water-to-binder ratio of 1.45 gave a bio-based material with an average compressive strength of 0.8 MPa; it is, therefore, used as an insulation and filling material in buildings.



中文翻译:

亚麻碎屑的含量和大小对亚麻混凝土湿热力学性能的影响

本文对含有不同含量和尺寸的亚麻碎屑的绿色混凝土的湿热力学性能进行了实验研究。这使其可以响应建筑领域中的不同应用程序。使用扫描电子显微镜的显微镜观察结果表明,亚麻薄片具有非常复杂和多孔的微观结构。后者具有良好的水合和热性能,并具有高的湿气缓冲能力,其最小和最大值分别为2.03和2.82。这使其可以被归类为出色的水分调节剂。亚麻混凝土的质量组成为:亚麻碎屑的14.5%,粘结剂(传统PF70)的35%和水灰比为1.45,得到的生物基材料的平均抗压强度为0.8 MPa;因此,

更新日期:2020-07-14
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