| Abstract Scope |
Natural fiber-reinforced cementitious composites have emerged as sustainable alternatives to conventional construction materials due to their renewable origin, low environmental impact, and potential to improve mechanical performance. However, durability remains a critical challenge for their long-term application. This study presents a literature review on the degradation mechanisms affecting natural fibers in cementitious matrices and discusses strategies to enhance composite service life. National and international studies addressing alkaline degradation, fiber mineralization, water absorption, accelerated aging, and durability improvement techniques were analyzed. The reviewed literature indicates that the highly alkaline cementitious environment progressively degrades lignocellulosic fibers, reducing their reinforcing efficiency over time. Conversely, surface treatments, chemical modifications, fiber mineralization, and the incorporation of supplementary cementitious materials have demonstrated promising results in mitigating degradation and improving long-term performance. Overall, combining fiber treatment with matrix optimization represents an effective strategy for developing more durable and sustainable natural fiber-reinforced cementitious composites. |