Mechanical Performance of Fiber-Reinforced Slag-Based Geopolymer Composite
Publication: Practice Periodical on Structural Design and Construction
Volume 28, Issue 3
Abstract
Geopolymer materials are extensively studied as they are considered more sustainable and eco-friendlier than ordinary Portland cement concrete. This study examined the mechanical characteristics of geopolymer composite. Ground granulated blast furnace slag (GGBFS) was utilized as a binder material. Both polypropylene (PP) and carbon fibers (CF) were added to 0, 0.75%, 1.0%, and 1.25% of the weight of the binder. Hybrid fiber was also used concurrently (CF-1.0 and PP-0.25; CF-0.5 and PP-0.5; and CF-0.25 and PP-1.0). Compressive strength, flexural strength, direct tensile strength, and modulus of elasticity were used to assess the mechanical properties. According to the findings, the best-studied fiber content was 1% for all the types of fiber inclusion (carbon, polypropylene, and hybrid fiber) which considerably improved the mechanical characteristics. However, carbon fiber had a greater impact on the mechanical properties than polypropylene fiber and hybrid fiber. Strain hardening and deflection hardening were achieved and indicated by multiple cracks and ultimate strength.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
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Published In
Practice Periodical on Structural Design and Construction
Volume 28 • Issue 3 • August 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Nov 21, 2022
Accepted: Apr 5, 2023
Published online: Jun 6, 2023
Published in print: Aug 1, 2023
Discussion open until: Nov 6, 2023
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