Authors : Nurudeen Yusuf; Jibril M. Kaura; Wilson U. Nyong; John E. Sani; Abdullahi A. Adefila

Volume/Issue : Volume 11 - 2026, Issue 5 - May

Google Scholar : https://tinyurl.com/yn3rkxeb

Scribd : https://tinyurl.com/4ssr749d

DOI : https://doi.org/10.38124/ijisrt/26May1847

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Abstract : Industrial waste management remains a global environmental challenge, with traditional Portland cement production contributing significantly to CO2 emissions. Geopolymer concrete, produced via alkali activation of aluminosilicate materials, offers a sustainable alternative. This review critically examines the flexural behaviour and durability of geopolymer reinforced concrete (GPC) beams, focusing on the influence of source materials, alkaline activator types, and curing methods. A comprehensive literature survey was conducted through major research databases to analyse previous experimental studies on reinforced geopolymer concrete beams. The review compares findings on flexural performance, failure modes, and durability characteristics across varying mix compositions and curing regimes. Results indicate that GPC beams exhibit structural behaviour comparable to ordinary Portland cement (OPC) beams in terms of flexural strength, crack pattern, and load-deflection characteristics. The use of optimized curing methods and activator concentrations enhances both mechanical and durability performance. Variability in source materials and activator types significantly affects strength and service life properties. Geopolymer reinforced concrete beams demonstrate promising flexural and durability performance, supporting their potential for structural applications. Further work should focus on long-term corrosion resistance and field scale validation.

Keywords : Alkali Activator, Curing Method, Geopolymer, Reinforced Concrete Beam, Source Material.

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