CLASSIFICATION AND USE OF FINE WASTES FROM DIMENSION STONE INDUSTRY

摘要

Brazil is one of the main producers of dimension stones in the world and most of its production is for international market. Cutting granites and marble blocks to produce plates, and polishing theses plates, generate a fine waste whose characteristics indicate possibilities to be used in other products, such as ceramic material. The residue, also known as "abrasive slurry", can cause environmental damage depending on chemical composition. The proper treatment, storage and application of this material ask for studies about their composition and transformations along time. The aim of this work is to analyze five deposits of dimension stone wastes with different ages and stored under different conditions. Residues have high compositional variability, but none showed elements content that could be considered dangerous to the environment.