Evaluation of Sintering Characteristics of Pavement Tiles Incorporating Waste Catalyst

This investigation elucidates the sintering characteristics of pavement tile made from a blend with waste catalyst to evaluate the feasibility of the reuse of the waste catalyst. The following operating conditions were adopted; pressing pressure 25kgf/cm^2, sintering temperature from 900 to 1200°C, sintering time 6hrs, waste catalyst percentage by weight from 0 to 50%, and heating rate of 5°C/min. The water absorption and porosity increases with the amount of waste catalyst added to the mixture. Increasing the amount of waste catalyst in the pavement tiles reduces the ignition. The hardness test results show that the hardness of the clay and waste catalyst pavement tiles depends strongly on the amount of waste catalyst present in the pavement tile and the heating temperature. The correlation between the water absorption and the porosity ratio demonstrates that the water absorption rate increases with the porosity. The effects of sintering temperature and the quantity (%) of the waste catalyst mixed with clay on the properties of the prepared pavement tiles are reported.

並列關鍵字

Absorption rate ； Bulk density ； Pavement tile ； Porosity ratio ； Waste catalyst

國際替代計量

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