The effect of chemical treatment on the mechanical and thermal 3 properties of composite materials based on clay reinforced with 4 sawdust
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
Université de M'sila
Abstract
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
Description
Keywords
sawdust / clay / thermal conductivity / mechanical properties / chemical treatment