Enhancing Concrete Properties with Agave Americana Fiber Reinforcement

Abstract

This research article explores the potential of using agave Americana fibers (AAFs) to enhance the physical and mechanical properties of concretes. The study investigates the impact of AAFs on concrete mix proportions in detail. Different concrete compositions are systematically created by integrating AAFs into them. The chemical structure, crystallinity, morphology, and tensile strength of extracted AAFs are examined, revealing a low cellulose content and a crystallinity index of around 41.34%. The microstructural analysis highlights the rough surface morphology of the extracted AAFs. The research also evaluates how AAFs affect concrete density, water uptake, and flexural and compressive strengths across various mixtures. The results show that incorporating AAFs in a horizontal position can increase the flexural resistance by up to 99% and the compressive resistance by up to 86% without chemical reactions occurring with mud−lime concrete. However, it is worth noting that using AAFs with cement can affect fiber durability due to the alkaline environment. As the alkali concentration increases, the fiber mechanical resistance decreases. Therefore, it is recommended to use AAFs with noncement concrete for improved sustainability and durability. Overall, this study advances our understanding of eco-friendly and resilient concrete materials.