| Abstrakt: |
This present study has evaluated the physical and mechanical properties of ceramic tiles processed from steel slag. The chemical compositions of both samples were conducted using atomic absorption spectrophotometer (AAS). Steel slag in the range of 0-100wt% was added to kaolinite clay. The blended samples were hydraulic pressed into rectangular moulds, oven dried and sintered within the temperature range of 1100°C - 1200°C. Surface appearance and colouration of sintered products were observed. Linear shrinkage, apparent porosity, water absorption, bulk density, apparent specific gravity and modulus of rupture of sintered samples were examined. Phases present were identified using X-ray diffraction (XRD), while microstructural examination was conducted using scanning electron microscopy (SEM). Phases like quartz, wollastonite, enstatite, were identified. SEM showed considerable degree of vetrification at both temperatures. Results obtained showed that samples containing 25-75wt% steel slag have very good usable ceramic tile properties. |
