Auto-coherent homogenization is used to evaluate the thermal conductivity of sugar cane bagasse fibers in vegetable fibers/cement composites. The moisture content effect on the thermal conductivity of composites is also studied. When the fiber content increases, porosity increases and bulk density and thermal conductivity of composites decrease. When the moisture content grows the thermal conductivity of composites increases. In dry state, there is a gap of less than 10% between experimental and modeled values. In wet state, there is a good agreement between estimated and experimental values of thermal conductivity of composites up to 4 %wt of fibers content.
This paper highlights application of the MTPS method of C-Therm's Trident Thermal Conductivity Analyzer.