Abstract

This paper focuses on the use of new technologies of ceramic manufacturing for the recovery of wastes resulting from cutting and grinding of slates. Slates are commonly used for roof and floor tiles and billiard tables. Several tonnes/day of waste can be produced. After pressing and sintering, the physical, chemical, and mechanical product properties open new approaches for the recovery of these inorganic wastes. The particle size of slate wastes is suitable to injection moulding, for the production of large series of parts with complex shapes. In this study, a method for feedstocks preparation based on slate was optimised, and the influence of thickness of moulded parallelepiped bars on debinding cycle studied. Finally, the debinding and sintering treatments were performed to evaluate some physical and mechanical properties of the final product.

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