Author(s)

Ouanmini Bobet¹, Sory Nassio¹, Mohamed Seynou¹, Bakiono Remy¹, Lamine Zerbo¹, Issiaka Sanou², Moustapha Sawadogo¹, Younoussa Millogo², Escadeillas Gilles³

¹University Joseph KI-ZERBO, UFR-SEA, Ouagadougou, Burkina Faso.
²University Nazi BONI, UFR-ST, Bobo-Dioulasso, Burkina Faso.
³Laboratoire Matériaux et Durabilité des Constructions (LMDC), Université de Toulouse, UPS, INSA, Toulouse, France.

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.

Agricultural Wastes, Peanut Shells, Thermal Conductivity, Adobes, Durability

Bobet, O. , Nassio, S. , Seynou, M. , Remy, B. , Zerbo, L. , Sanou, I. , Sawadogo, M. , Millogo, Y. and Gilles, E. (2020) Characterization of Peanut Shells for Their Valorization in Earth Brick. Journal of Minerals and Materials Characterization and Engineering, 8, 301-315. doi: 10.4236/jmmce.2020.84018.