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Thermal Performance Analysis of Plaster Reinforced with Raffia Vinifera Particles for Use as Insulating Materials in Building

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Journal of Minerals and Materials Characterization and Engineering 2024年第2期12卷 112-138页

作者： Etienne Malbila danielle manuella djouego tagne Bouto Kossi Imbga Lareba Adelaide Ouedraogo Sié Kam David Yemboini Kader Toguyeni Ecole Supé rieure d&#8217Ing&#233nierie (ESI) Universit&#233 de Fada N&#8217Gourma Fada N&#8217Gourma Burkina Faso Laboratoire d’ Energies Thermiques Renouvelables (LETRE) Universit&#233 Joseph KI-ZERBO Ouagadougou Burkina Faso Institut Supé rieur des Techniques Industrielles et Commerciales (ISTIC) Bangangt&#233 Cameroun Unité de Formation et de Recherche en Sciences et Technologies (UFR/ST) Université Norbert ZONGO Koudougou Burkina Faso Laboratoire de Physique et Chimie de l’ Environnemen (LPCE) Universit&#233 Joseph KI-ZERBO Ouagadougou Burkina Faso Ecole Polytechnique de Ouagadougou (EPO) Ouagadougou Burkina Faso

The present study focuses on the formulation of new composite consisting of plaster and raffia vinifera particle (RVP) with the purpose to reducing energy consumption. The aim of this study is to test this new compound as an insulating eco-material in building in a tropical climate. The composites samples were developed by mixing plaster with raffia vinifera particles (RVP) using three different sizes (1.6 mm, 2.5 mm and 4 mm). The effects of four different RVP incorporations rates (i.e., 0wt%, 5wt%;10wt%;15wt%) on physical, thermal, mechanicals properties of the composites were investigated. In addition, the use of the raffia vinifera particles and plaster based composite material as building envelopes thermal insulation material is studied by the habitable cell thermal behavior instrumentation. The results indicate that the incorporation of raffia vinifera particle leads to improve the new composite physical, mechanical and thermal properties. And the parametric analysis reveals that the sampling rate and the size of raffia vinifera particles are the most decisive factor to impact these properties, and to decreases in the thermal conductivity which leads to an improvement to the thermal resistance and energy savings. The best improvement of plaster composite was obtained at the raffia vinifera particles size between 2.5 and 4.0 mm loading of 5wt% (C95P5R) with a good ratio of thermo-physical-mechanical properties. Additionally, the habitable cell experimental thermal behavior, with the new raffia vinifera particles and plaster-based composite as thermal insulating material for building walls, gives an average damping of 4°C and 5.8°C in the insulated house interior environment respectively for cold and hot cases compared to the outside environment and the uninsulated house interior environment. The current study highlights that this mixture gives the new composite thermal insulation properties applicable in the eco-construction of habitats in tropical environments

关键词： Fibres Plaster Thermal Test Mechanical Test Insulating Material Indoor Comfort

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