Investigation of Waste Mineral Wool in Geopolymer Production

Authors : Mehrzad Mohabbı, Mehmet Nuri Kolak

Pages : 192-198

Doi:10.46810/tdfd.1569404

View : 66 | Download : 69

Publication Date : 2024-12-30

Article Type : Research Paper

Abstract :Mineral wools are widely used insulation materials in the construction industry; however, their non-recyclable nature poses an environmental challenge. In this study, mineral wool wastes were sustainably utilized by grinding them into powder and activating them with Na₂SiO₃ and NaOH solutions. During the production process, different silica modulus ratios of Na₂SiO₃ (2.0, 2.5, and 3.0) were examined, and the optimal ratio was determined to be 2.5. The mechanical properties of the samples were evaluated after curing at various temperatures (25°C, 50°C, 75°C, and 100°C), with the maximum compressive strength of 59.2 MPa observed in glass wool samples. Thermal curing enhanced compressive strength, particularly at 75°C, for glass wool-based samples. Additionally, the compressive strengths of the samples stabilized after a curing period of 90 days. These findings demonstrate the feasibility of recycling mineral wool wastes into high-performance materials and highlight the significant role of thermal curing in enhancing mechanical properties.
Keywords : Jeopolimer, alkali aktivasyonu, mineral yün, taş yünü, cam yünü

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