Use of waste green soda bottle-glass as an additive in the artistic ceramics production

European Mechanical Science, cilt.9, sa.4, ss.350-358, 2025 (TRDizin)

This study investigates the potential use of post-consumer green soda bottle glass (GSBG) waste as a sustainable

additive in artistic ceramic bodies. Composite specimens were prepared by incorporating ground GSBG into white ceramic

clay at weight percentages of 20%, 30%, 40%, and 50%. The specimens were shaped using mold pressing and hand shaping

techniques and sintered under various conditions to compare full vitrification with sintering. XRF analysis confirmed the

potential of GSBG waste as a plasticizer due to its high Na2O content (~10.78 wt%) and CaO content (~9.26 wt%). When the

GSBG was fully melted, the microstructure underwent transformation. The optimal formulation was obtained from the GSBG

waste with the smallest powder size range, at 40 wt%, resulting in near-zero water absorption (~less than 1.0%) and maximum

densification. XRD analysis confirmed this structural change, revealing a distinct amorphous bump not present in the pure clay

body, and demonstrated successful vitrification. Conversely, lower temperatures (930 °C) and larger particles resulted in limited

melting and crack formation. This approach offers an environmentally conscious recycling pathway, providing structurally

stable and aesthetically pleasing green glazed surfaces suitable for artistic ceramic production.

Keywords: Sustainability; Artistic; Ceramics; Upcycling; Glass; Waste Material.