Physical and Thermo-Mechanical Properties of Composite Materials Based on Raw Earth and Crushed Palm Leaf Fibers (Borassus aethiopum)  

作　　者：Mouhamadou Nabi Kane Mapathe Ndiaye Pape Moussa Touré Adama Dione Mouhamadou Nabi Kane;Mapathe Ndiaye;Pape Moussa Touré;Adama Dione(University College of Architecture of Dakar (CUAD), UFR SI, University of Thies, This, Senegal;Laboratory of Mechanics and Modeling, UFR SI, University of This, This, Senegal;Laboratoire dEnergtique Applique (LEA), Cheikh Anta Diop University, Dakar, Senegal;Institut of Earth Sciences (IST), Universit Cheikh Anta Diop (UCAD), Dakar, Senegal)

机构地区：[1]University College of Architecture of Dakar (CUAD), UFR SI, University of Thies, This, Senegal [2]Laboratory of Mechanics and Modeling, UFR SI, University of This, This, Senegal [3]Laboratoire dEnergtique Applique (LEA), Cheikh Anta Diop University, Dakar, Senegal [4]Institut of Earth Sciences (IST), Universit Cheikh Anta Diop (UCAD), Dakar, Senegal

出　　处：《Materials Sciences and Applications》2024年第9期358-377,共20页材料科学与应用期刊（英文）

摘　　要：The objective of this study is to seek solutions to reduce the impact of buildings on climate change and to promote the use of local bio-sourced or geo-sourced materials for sustainable construction. Different samples of raw earth from 3 sites were taken in the commune of Mlomp. Geotechnical tests showed that the raw earth samples from sites 2 and 3 have more clay fraction while site 1 contains more sand. The fact of integrating fibers from crushed palm leaves (Borassus aethiopum) (2%, 4% and 6%) into the 3 raw earth samples reduced the mechanical resistance to compression and traction of the 3 raw earths. The experimental results of thermal tests on samples of earth mixtures with crushed Palma leaf fibers show a decrease in thermal conductivity as well as thermal effusivity as the percentages increase (2%, 4% and 6%) of fibers in raw earth for the 3 sites. This shows that this renewable composite material can help improve the thermal insulation of building envelopes.The objective of this study is to seek solutions to reduce the impact of buildings on climate change and to promote the use of local bio-sourced or geo-sourced materials for sustainable construction. Different samples of raw earth from 3 sites were taken in the commune of Mlomp. Geotechnical tests showed that the raw earth samples from sites 2 and 3 have more clay fraction while site 1 contains more sand. The fact of integrating fibers from crushed palm leaves (Borassus aethiopum) (2%, 4% and 6%) into the 3 raw earth samples reduced the mechanical resistance to compression and traction of the 3 raw earths. The experimental results of thermal tests on samples of earth mixtures with crushed Palma leaf fibers show a decrease in thermal conductivity as well as thermal effusivity as the percentages increase (2%, 4% and 6%) of fibers in raw earth for the 3 sites. This shows that this renewable composite material can help improve the thermal insulation of building envelopes.

关 键 词：Raw Earth Palma Leaf Fibers Ecological Composite Materials PHYSICAL Thermo-Mechanical Thermal Conductivity Thermal Effusivity 

分 类 号：TB3[一般工业技术—材料科学与工程]