Effect of Zeolite and Nano-Alumina on Mechanical and Durability Properties of Fiber Reinforced Concrete

The primary objective of this study is to evaluate the structural and durability performance of fibre-reinforced concrete incorporating zeolite and nano-alumina as partial cement replacement materials. The use of 10% zeolite and 1% nano-alumina aims to enhance mechanical strength, durability, and microstructural properties while reducing cement consumption for sustainable construction. Polypropylene (PP) fibres were added at 0.1%, 0.2%, and 0.3% volume fractions to further improve performance. A comprehensive experimental program included casting cubes for compressive strength, cylinders for split tensile strength, prisms for flexural strength, and disc specimens for sorptivity tests. Six concrete mixes were developed, including control, blended, and fibre-reinforced variants. Results indicate that the combined use of zeolite, nano-alumina, and PP fibres significantly improves strength, crack resistance, and durability. The study confirms that optimized nano-modified fibre-reinforced concrete is a promising solution for sustainable, high-performance construction applications.