Influence of Cellulosic Fibres on the Physical Properties of Fibre Cement Composites

3rd International Conference on Innovative Materials, Structures and Technologies

Hospodarova, V.^1 ; Stevulova, N.^1 ; Vaclavik, V.^2 ; Dvorsky, T.^2

Technical University of Kosice, Faculty of Civil Engineering, Institute of Environmental Engineering, Kosice, Slovakia^1

VSB-Technical University of Ostrava, Faculty of Mining and Geology, Insitute of Environmental Engineering, Ostrava-Poruba, Czech Republic^2

关键词: Cement based composites;    Coefficient of thermal conductivities;    Ecological buildings;    Environmental-friendly;    Housing construction;    Physical characteristics;    Renewable raw materials;    Water absorbability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012015/pdf
DOI  :  10.1088/1757-899X/251/1/012015

来源: IOP

【 摘 要 】

Nowadays, there are new approaches directing to processing of non-conventional fibre-cement composites for application in the housing construction. Vegetable cellulosic fibres coming from natural resources used as reinforcement in cost-effective and environmental friendly building products are in the spotlight. The applying of natural fibres in cement based composites is narrowly linked to the ecological building sector, where a choice of materials is based on components including recyclable, renewable raw materials and low-resource manufacture techniques. In this paper, two types of cellulosic fibres coming from wood pulp and recycled waste paper with 0.2%; 0.3% and 0.5% of fibre addition into cement mixtures were used. Differences in the physical characteristics (flowability, density, coefficient of thermal conductivity and water absorbability) of 28 days hardened fibre-cement composites are investigated. Addition of cellulosic fibres to cement mixture caused worsening the workability of fresh mixture as well as absorbability of hardened composites due to hydrophilic nature of biomaterial, whereas density and thermal conductivity of manufactured cement based fibre plaster are enhanced. The physical properties of cement plasters based on cellulosic fibres depend on structural, physical characteristics of cellulosic fibres, their nature and processing.