Optimizing Polymer-Stabilized Raw Earth Composites with Plant Fibers Reinforcement for Historic Building Rehabilitation

Abstract

This research focuses on the optimization of formulation, characterization, and damage analysis of plant fiber-reinforced polyester resin composites (jute and date palm). To better understand the characteristics and mechanical behavior of these materials, this study investigates the influence of resin content and plant fibers on the physico-mechanical behavior of the resin composites. Resinous composites consisting of polyester resin and raw earth were studied using a novel formulation based on an empirical method that follows the principle of earth saturation with polyester resin. Saturation was achieved with a 28% content of polyester resin, which appeared to be an optimal blend for the earth–resin composite. Plant fibers were randomly incorporated as reinforcement in the composites at various percentages (1%, 2%, and 3%) and lengths (0.5 cm, 1 cm, and 1.5 cm). Mechanical tests including bending, compression, and indentation were conducted to evaluate the mechanical properties of the composites. Analysis of fracture morphology revealed that the deformation and rupture mechanisms in bending, compression, and indentation of these composites differ from those of traditional concrete and cement mortar. The obtained results indicate that the composites exhibit acceptable performance and could be favorably employed in the rehabilitation of historic buildings.

Optimizing properties of clayey soil using lime and waste marble powder: a sustainable approach for engineering applications

“…The clay soil sample utilized in this study was obtained from Bouzaroura El Bouni, the north-eastern region of Algeria in Supplementary Figure S1, it is geotechnical properties were evaluated according to French standards as shown in Table 1; and in Supplementary Figure S2 was illustrated the grain-size curve of the utilized clay. Based on the analysis of its gradation and plasticity characteristics, the clay soil was classified the clay soil was classified as CL following the methodology outlined by (Bekkouche and Boukhatem, 2016;Bekkouche Rehab et al, 2022;Menadi et al, 2023).…”