solid soil-cement brick with scheelite extraction mineral waste for use in interlocking pavement

摘要

belonging to the field of civil engineering as an unconventional material, within the scope of civil construction, obtained through the soil-cement technique for use and application in interlocking pavements of external environments, with resistance limits of up to 8 mpa for pedestrian circulation. includes in its composition the cement, which is classified in cp ii-z 32 (portland cement composed with the addition of pozzolan), the soil, which is sand-clay class (60-70% sand and 20-30% clay ), and refuse to obtain scheelite. through the dosage of materials in which the cement is bounded in a fixed portion of 10%, the soil 45% and the tailings 45%, it is possible to obtain a cementitious matrix material with better characteristics than without using the waste in its composition, thus corroborating the application on interlocking pavements with low loading requests. homogenization was carried out wet, with 5-10% by weight of the expected for the brick (200ml for 2000g of dry material). it does not require drying and / or burning in ovens, inhibiting the generation of greenhouse gases, in the same way that it gradually eradicates the incorrect disposal of waste from obtaining scheelite, which at present does not yet have a correct direction.