PSI - Issue 70

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ScienceDirect

Procedia Structural Integrity 70 (2025) 682–689

Structural Integrity and Interactions of Materials in Civil Engineering Structures (SIIMCES-2025) An assessment of the mechanical and durability capabilities of geopolymer concrete Ravi Malik a , Abhay Kumar Chaubey a *, Md Irfan Ansari b a Department of Civil Engineering, Faculty of Engineering and Technology, SRM University Delhi-NCR, Sonepat, Haryana, India b Assistant Professor, Department of Civil Engineering, Government Engineering College Khagaria, Bihar, India Abstract Geopolymer concrete (GPC) is gaining more interest due to its better durability qualities and reduced environmental effects, made from the polymerization of aluminosilicate minerals catalyzed by alkali hydroxides, offering a possible substitute for traditional Portland cement concrete. With an emphasis on its potential to replace traditional concrete in construction, this review paper evaluates the mechanical and durability qualities of GPC. The report summarizes results from multiple studies, emphasizing that GPC's tensile strength, flexural performance, and compressive strength (which ranges from 30 to 108 MPa) are on par with or better than those of regular Portland cement (OPC) concrete. The kind of aluminosilicate precursors (fly ash, slag, metakaolin), alkaline activators (NaOH, Na₂SiO₃), curing conditions (heat or ambient), and the usage of additives like superplasticizers a re important elements that affect these qualities. Examined are durability factors such as resistance to sulphate attack, chloride penetration, and sulfuric acid, which show how GPC performs better in harsh conditions because of its stable aluminosilicate matrix. Notwithstanding its benefits, obstacles include mix design heterogeneity, a dearth of long-term durability data, and the requirement for defined codes prevent widespread deployment. The study emphasizes how crucial it is to improve mix designs, investigate ambient curing techniques, and carry out additional long-term performance research in order to increase GPC's applicability. By tackling these issues, GPC may contribute significantly to sustainable building practices, supporting international initiatives to lower carbon emissions and encourage environmentally friendly building materials.

© 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers

Keywords: Geopolymer Concrete; Durability; Mechanical Properties

* Corresponding author. +91-9931974461. E-mail address: abhay.c@srmuniversity.ac.in.

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers 10.1016/j.prostr.2025.07.106