VALORIZATION OF SLATE WASTE TO PRODUCE MATERIALS CERAMICS AND COMPOSITES

• DOI: 10.22533/at.ed.8452211087

• Palavras-chave: slate waste, characterization, processing, new materials, civil construction

• Keywords: slate waste, characterization, processing, new materials, civil construction

• Abstract:

  In slate extraction industries, mining and rock refining activities, up to the processing of products, generate a large quantity of tailings (~75% of the extracted rock). The block extraction for the production of slabs, floors and roofs generates a chip, dust or mud-shaped residue, composed mainly by water, lubricants and slate. This waste, which does not have a defined destination, accumulates in landfills, reservoirs and close to riverbeds, ensuing in technical, economic, environmental and social problems. Due to the physical and chemical properties of slate, the generated waste has great prospects for recovery and recycling in ceramic processing. This research showed four uses to slate waste and the properties of the products produced. 

  KEYWORDS: slate waste, characterization, processing, new materials, civil construction.

• Número de páginas: 17