THERMOPHYSICAL CHARACTERIZATION OF COMPOSITE MATERIALS BASED ON MOROCCAN DATE PALM FIBERS WITH HOT WIRE AND HOT PLANE METHODS

Composite materials based on mortar reinforced with plant waste as a building material are attracting an increasing interest due to their many advantages including their thermal insulation capacity. In this work, the thermophysical characterization of mortar reinforced with Moroccan date palm fi bers (DPF) was done using the hot wire and hot plane methods (FP2C) which measure the thermal conductivity and thermal eff usivity, respectively. The experimental results show that the inclusion of this type of fi ber in the mortar increases the thermal insulation capacity (by decreasing the thermal conductivity) and the capacity to absorb/release heat at its surface (by decreasing the thermal eff usivity). Also, DPFs lighten the mortar by decreasing its bulk density by up to 33%, and they decrease the volumetric thermal capacity by up to 51% and the thermal diff usivity by up to 44%. The results of the thermal conductivity of these composites were compared with those obtained by the box method (Cell EI700) and were also compared with those predicted by theoretical models available in the literature.
Composite materials based on mortar reinforced with plant waste as a building material are attracting an increasing interest due to their many advantages including their thermal insulation capacity. In this work, the thermophysical characterization of mortar reinforced with Moroccan date palm fi bers (DPF) was done using the hot wire and hot plane methods (FP2C) which measure the thermal conductivity and thermal eff usivity, respectively. The experimental results show that the inclusion of this type of fi ber in the mortar increases the thermal insulation capacity (by decreasing the thermal conductivity) and the capacity to absorb/release heat at its surface (by decreasing the thermal eff usivity). Also, DPFs lighten the mortar by decreasing its bulk density by up to 33%, and they decrease the volumetric thermal capacity by up to 51% and the thermal diff usivity by up to 44%. The results of the thermal conductivity of these composites were compared with those obtained by the box method (Cell EI700) and were also compared with those predicted by theoretical models available in the literature.
Author:  M. Boumhaout, L. Boukhattem, and H. Hamdia
Keywords:  building, composite, conductivity, eff usivity, methods, theoretical models
Page:  264