Scientific Mining Journal, cilt.63, sa.2, ss.95-100, 2025 (Scopus)
Wall tiles must have a 10-20% water absorption depending on the EN 14411 standard. In order to meet this water absorption criterion, calcite and dolomite minerals, which are in carbonated structure, are used in wall tile body composition. Manufacturers supply these minerals from limestone sources close to the enterprises, which are abundant in nature. The size of raw materials must be reduced to finer sizes (-45 µm) in aqueous medium in order to produce qualified wall tile body composition. In this context, this study aimed to investigate the effects of ground limestone samples obtained from the Derenti, Nevruz, and Terzialan regions of Çanakkale province (Türkiye), on ceramic wall tiles based on laboratory and industry-scale experiments/analyses. The limestone samples were firstly ground in a batch mill, and the grinding performances were compared in terms of time-dependent particle size, energy consumption, and capacity. Then, wall tile bodies were analyzed in terms of sintering properties and TS EN 14411 standards. The results from this study showed that Bond Work Indexes of Derenti, Nevruz, and Terzialan limestone samples were determined as 12.8, 11.7, and 13.0 kWh/t, respectively. As a result of industrial-based batch grinding studies, the energy consumption increased from 67.4 to 73.4 kW/t and the capacity decreased from 1.34 t/h to 1.23 t/h with quartz content increment of limestone samples from 0.8% to 2.1% and a ground limestone sample was gained with d90: 16.97 µm, d50: 1.85 µm, and d10: 0.37 µm values. Additionally, sintering studies showed that the shrinkage value decreased from 0.43% to 0.31% with CaO increment from 53.9% to 54.6% and wall tile with TS EN 14411 water absorption standard was obtained by using 13% limestone. In conclusion, the mineral content in limestone showed significant effects on particle size distribution, energy consumption, and capacity in the fine grinding process as well as on sintering properties of ceramic wall tile body.