(Université de M'sila, 2022) Fadhila Mouissa; Azzedine Benyahia; Mokhtar Djehiche; Kamel Belmokre; Nadir Deghfel; Ali Redjem; Zine El Abidine Rahmouni
This study investigates the effect of the chemical treatment of sawdust on the mechanical and
16 thermal properties of a clay composite reinforced with sawdust in variable mass proportions: 0.5, 1, 1.5, 2 and
17 2.5%, intended for use as brick in rural houses in desert areas. The sawdust was chemically treated with 5 wt%
18 NaOH and 0.01 wt% KMnO4 solutions. The mechanical test results of the reinforced composite with alkali-
19 treated sawdust show an increase in flexural and compression strength, reaching a maximum value of 0.89 and
20 4.85 MPa, respectively. However, the thermal test results show a significant decrease in the thermal conductivity
21 of the sawdust-reinforced composite. The best result recorded is that of untreated sawdust, which has a value of
22 0.37 (W.m 1.K 1) compared to the one reinforced with treated sawdust