Investigation of thermal conductivity of concrete composites with hen feathers and sheep wool

Abstract

The thermal conductivity of composites made from hen feathers with hydraulic lime and composites made from sheep wool with hydraulic lime was investigated in this study. The coefficient of thermal conductivity of composites is directly dependent on the density (lime content). Higher densities are found in composites made from hen feathers and hydraulic lime at a composition of 1: 0.25 - a difference between densities is 23.02%. The results of the thermal conductivity study show that composites made from hen feathers and hydraulic lime have the highest conductivity. The composites made from sheep wool and hydraulic lime at the composition Wool V/ Lime K = 1: 0.25 have the lowest conductivity, the coefficients of thermal conductivity are 0.0364 W/(m·K). Composites made from hen feathers with hydraulic lime or composites of sheep wool with hydraulic lime should be used in the construction of agricultural buildings where thermal insulation properties of the materials are required.