Mechanical Strength Analysis of Fiber-Reinforced Geopolymer Nanocomposite
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DOI:
https://doi.org/10.5281/zenodo.14370046Keywords:
Geopolymer, Multi-Walled Carbon Nanotubes, Compressive Strength, Tensile StrengthAbstract
Engineered geopolymer composites (EGC) are emerging as a sustainable alternative to
traditional cement-based materials, like engineered cementitious composites (ECC). Unlike Portland
cement, which has a significant environmental impact, EGC reduces energy use, carbon emissions, and
environmental damage. Recent developments have produced stronger, more flexible, and eco-friendly
EGC. While EGC with GGBS (Ground Granulated Blast Furnace Slag) exhibits similar mechanical
properties to Portland cement, it tends to crack under stress. This study improves the ductility of GGBS
EGC by incorporating polyethylene (PE) fibers and functionalized multi-walled carbon nanotubes (f
MWCNTs). Mechanical testing of compositions with 0.10% f-MWCNTs and 0.15% PE fibers showed a
strength of 3.71 MPa under tension, elongation of 5.48%, initial tensile fracture strength of 2.46 MPa, and
compressive strength of 38.03 MPa after 28 days. The PSH index for GGBS-EGC2 was 32.67,
demonstrating excellent ductility and multiple cracking.
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