Mechanical Performance of Fiber Cement Composites Reinforced with Hybrid Jute and Cellulose and Rice Husk Ash

The construction industry is always looking for materials that combine good technical performance, environmental sustainability and cost-effectiveness. This study analyzed the mechanical behavior of fiber cement composites reinforced with a combination of jute mesh and cellulose pulps. In addition, the effects of replacing 15% of the cement with rice husk ash (RHA) on the material properties were evaluated. Half of the samples were produced without RHA and the other half with RHA. Flexural tests were performed to calculate the Modulus of Rupture (MOR), Modulus of Elasticity (MOE) and Specific Energy (SE). The results showed that both the hybrid reinforcement and the presence of RHA led to a strain hardening behavior, which means a more ductile failure and greater capacity to absorb energy. Statistical analysis indicated a significant increase in MOR and E.E. for the samples with RHA, while the MOE did not change in a statistically relevant way. The combination of fibrous reinforcement with the pozzolanic action of RHA improves the strength and toughness of fiber cement. This work contributes to the literature by investigating this specific combination of materials, providing important data for the creation of more sustainable and resistant construction solutions.