Characterization of Peanut Shells for Their Valorization in Earth Brick

作     者：Ouanmini Bobet Sory Nassio Mohamed Seynou Bakiono Remy Lamine Zerbo Issiaka Sanou Moustapha Sawadogo Younoussa Millogo Escadeillas Gilles Ouanmini Bobet;Sory Nassio;Mohamed Seynou;Bakiono Remy;Lamine Zerbo;Issiaka Sanou;Moustapha Sawadogo;Younoussa Millogo;Escadeillas Gilles

作者机构：University Joseph KI-ZERBO UFR-SEA Ouagadougou Burkina Faso University Nazi BONI UFR-ST Bobo-Dioulasso Burkina Faso Laboratoire Matériaux et Durabilité des Constructions (LMDC) Université de Toulouse UPS INSA Toulouse France 

出 版 物：《Journal of Minerals and Materials Characterization and Engineering》 (矿物质和材料特性和工程（英文）)

年 卷 期：2020年第8卷第4期

页      面：301-315页

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Agricultural Wastes Peanut Shells Thermal Conductivity Adobes Durability 

摘      要：Peanut shells from Burkina Faso were characterized using mineralogical, microstructural and chemical methods to perform its possibility to be used as reinforce in adobe bricks. It consists of cellulose (48 wt%), hemicellulose (3 wt%) and lignin (28 wt%). The peanut shells were characterized by high porosity and showed water absorption around 198% at 72 hours. Its chemical composition is essentially composed of silica, iron oxides, alumina and calcium oxide. Its microstructure showed that the peanut shells were a compilation of microfibers with high porous of borders. In watery solution, the peanut shells released polyphenols. Thermal conductivity of peanut at 25 °C was 0.155 ± 0.021 W/mK. The physico-chemical characteristics of peanut shells were similar to those found with agricultural by-products used in adobe reinforce.