The production of normal sand using waste from mining

摘要

Invention patent: production of normal sand using waste from mining.In response to the large consumption of natural resources by the activity of the civil construction, and the generation of tailings from mining activity of iron silicon (silicon metal), we developed a methodology for production of normal sand for civil construction, from processame No specialized from the tailings from mining iron silicon.To do so, were produced for the production of a standardized tests that meet the demands of sand particle size standards related to, mechanical properties, durability and stability. The use of the sand produced arrays of cement resistant, indicated for use as elements of structure, masonry, concrete floors or coating.The arrays produced with the tailings still produced, dosages of Portland cement durable, weather resistant and dimensionally stable, very concerned about reinforced concrete structures and the cladding of buildings. The identification of crystalline phases as well as defined, by means of analysis on X-ray diffraction, contributes in the durability of the grains.The invention applies in the production of mortar for laying masonry, coatings, or even set mortars. Aims to reduce consumption of natural resources that are extracted, reducing cost of buildings and providing sustainability actions for both mining and construction.