Abstract
The building materials used in Morocco characterized by a low thermal resistance which generates a huge expense in terms of energy consumption. Promoting new sustainable construction and insulation materials become a necessity. This research study aimed to develop the thermal proprieties of plaster building material by mixing it with waste chicken feathers (WCF) in order to be used as wall exterior rendering. For the purpose of determining the thermal properties of the biocomposite material Plaster-WCF, several experimental measurements of thermophysical proprieties had been performed in order to determine apparent density, thermal conductivity, and thermal diffusivity using the hot plate method in steady-state regime and the Flash method, respectively. The results showed that the addition of waste chicken feathers leads to a remarkable reduction in apparent density of about 12.3%, the thermal conductivity and diffusivity have been reduced by about 30.2% and 18%, respectively, which shows the interest of using this biocomposite material in the construction buildings in order to ensure thermal comfort and reduce greenhouse gas emissions (CO2).
Highlights
For the purpose of ensuring good thermal comfort in building without harming the environment, it is necessary to search for more energy-efficient construction mode by reducing the need for heating and air conditioning
The materials commonly used in construction characterized by low thermal insulation properties [2,3], which has attracted the interest of many researchers to develop new bio-composite materials by incorporating natural and sustainable additives into different matrices
Belhadj et al [7] have characterized the thermomechanical behavior of concrete reinforced with barley straw fibers, the results show that these fibers can improve thermal conductivity (5.71%), thermal diffusivity (21.97%), specific heat (29.04%) and density (7%)
Summary
For the purpose of ensuring good thermal comfort in building without harming the environment, it is necessary to search for more energy-efficient construction mode by reducing the need for heating and air conditioning. Morocco has adopted an energy efficiency strategy applied to build sector This strategy aims to save about 1.2 MTep of energy and reduce greenhouse gas emissions about 4.5 MTeqco by 2020 [1]. The materials commonly used in construction characterized by low thermal insulation properties [2,3], which has attracted the interest of many researchers to develop new bio-composite materials by incorporating natural and sustainable additives into different matrices. These additives have excellent mechanical, thermal and acoustical properties [4]. The new composite material is renewable, recyclable and available
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