Doctoral Dissertations

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Comportement mécanique de brique de terre « ADOBE » : Effet de la nature de fibres végétales et d’agent stabilisant
(University of M'Sila, 2025-05-08) Kouidri Djamila
This research investigated the potential of fibers from the Bassia indica plant as a bio-sourced reinforcement in lightweight composite materials, particularly for adobe bricks. A comprehensive characterization of the fibers (SEM, XRD, EDX, RTA-FTIR, TGA) revealed a high crystallinity (40.12%), remarkable thermal stability (up to 260.24°C), and promising mechanical properties (tensile strength of 417.50 MPa, Young's modulus of 17.46 GPa). In parallel, an analysis of the intrinsic properties of the soils was conducted. The study explored the synergistic effect of fiber reinforcement and lime stabilization on the mechanical performance of adobe bricks, using compression and flexural tests. The results demonstrated a significant improvement in mechanical strength with the incorporation of fibers and lime, with the optimized formulations exhibiting superior performance. Overall, this research highlights the potential of Bassia indica fibers as a sustainable reinforcement material for ecological construction, promoting the use of local resources and improving the performance of adobe bricks