Characterization of Hemp Fibre-Reinforced Gypsum Panels for Building Insulation

摘要

In the present scenario in order to conserve the natural resources and for being eco-friendly, rather than using the conventional materials, it was necessary for the researchers to develop a new material having the properties of conventional materials and to meet the required properties of existing needs. A lot of research is carrying out in the field of materials which leads to the newly developed materials. A composite material is developed which consists of reinforcement phase and matrix phase. Combining of these, a newly developed material is formed which exhibits the properties greater than the parental materials. S. Gassita et al. discussed that by adding water to the gypsum, calcium sulphate CaSO_4 with H_2O forms a strong bond and that the hydric transfer property of water with gypsum and also carried out the investigation on sorbivity and hydraulic diffusivity. A. korjenic et al. presented the use of naturally available flax, hemp and jute fibres and compared the physical and mechanical properties with currently using insulating materials in building structures and also compared the properties of the natural materials with conventional materials. F. Iucolano et al. state that in order to restore the historical buildings and design the reinforcement materials fibreglass, basalt fibre with mortar of better characteristics and also converted the brittle structure into ductile structure. F. Iucolano et al. in another article discussed that because of high latent heat dehydrate into hemi-hydrates gypsum is used for to cut down the fire and the impact of hemp fibre on the thermal behaviour, properties under isothermal conditions are studied in. S. Verma says, however, the cellulose, hemicellulose, lignin weight percentages are 57-77, 14-22.4, 3.7-13, respectively, which shows the strength of the fibre is found good compared to banana, flax, cotton fibres in. Q. L Yu et al. elaborated that gypsum boards formed from β-hemihydrate, its dehydration was determined at the micro and macro levels, the thermal properties such as enthalpy of reaction, specific heat capacity were studied in the thermal properties of gypsum boards caused not only by the void fraction but also considerably with the particle system. Kanishka jha et al. fabricated the jute/E-glass hybrid composites which can withstand at different environment conditions by taking the wear property as a parameter. H.arikan et al. discussed gypsum-based composite materials for the strong bonding to concrete and brick as well as to improve the mechanical properties it needs chemical admixtures and chemical additives such as air-entraining admixture, superplasticizer in. Hari Om Maurya et al. discussed the wear property of the short sisal fibre reinforced with the epoxy composite. R. A. Kurtz discussed, the effect of water vapour on the formation of CaSO_4 · 2/1 H_2O by the three types of dehydration methods, i.e., atmospheric pressure, digesting in salt and autoclaving in lump form forms α, β-hemi-hydrates at different temperatures, where 75% α-hemihydrate and 25% β-hemihydrate are obtained by dehydration in atmosphere nearly saturated with water vapour is explained in. K. Ghazi et al. states that the amount of calcium sulphate is essential for the response to fire of gypsum plaster boards in the first 30 min of the standard fire of ISO 834. The percentage of calcium carbonate with a strong endothermic decomposition was found to influence the temperature rise of the board only at higher temperatures. O. Gencal et al. in his paper explained that vermiculite and polypropylene fibres are added to powder gypsum to reduce the thermal conductivity and also a mathematical model has been developed to study and optimise the fibre ratio of gypsum composites in. S. Seufert et al. discussed that similarly, the calcium sulphates in gypsum was influenced by dehydration temperature and XRD analysis of bassanite and iso-structural anhydrite III was clearly distinguished in. In Yasemin et al