The northern region of the state of Rio Grande do Sul, Brazil, is an important polo industrial metal / mechanical, with an extensive and varied portfolio of equipment, principally the manufacture of agricultural implements. In the foundry parts used in the manufacture of agricultural machinery, a large amount of sand is used, generating waste according to the NBR 10004/2004 standard, which deals with the classification of solid waste as its potential risks to the environment and health class II THE. This class includes non-hazardous waste and non-inert. Except in cases of waste containing large amounts of “molds machos’’, in this case framed as ‘’dangerous’’ class I. Its environmentally correct disposal in controlled or sanitary landfills represents an important expense in the cost table and requires careful management for the industries that are directly responsible for incidents and accidents and co-responsible for possible environmental liabilities futures, even with referral to paid landfills. Specifically, this paper seeks search a method of using foundry waste and its blanketing, more precisely, the Sands used in the manner of manufacture of cast piece, Replacing the natural sand, water, foam produced With the espumigeno coconut fatty acids, cement as a binder in the manufacture of blocks of cellular concrete espumígeno (bcce), and consequent use in civil construction. In this context it seeks the state of the art in the construction of theoretical and practical knowledge about the topic, and also based on the models studied in research and publications by this author, using similar residues
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