APROVEITAMENTO DO LODO GERADO EM SISTEMA DE DECANTA??O PARA O TRA?O DE CONCRETO N?O ESTRUTURAL

摘要

http://dx.doi.org/10.5902/2236130814136 In order to destination for the sludge generated from washing concrete mixers trucks for concrete producers, we evaluated its use in place of part of the fine and coarse sand in the trace of conventional concrete. For this, two types of sludge, type 01 experiments 5 and 10% substitution of sand by the mud were used, and the type sludge 02 substiuida with sand in proportions of 5, 10, 25 and 50% by sludge rotated at each stroke. It then emerged the compressive strength of the specimens of each trait. The trace obtained witness resistance at 28 days of 19.70 MPa. Also at 28 days to 01 Lodo, the heaters were 5% to 17.80 MPa and 16.40 MPa for 10% replacement. For Sludge 02, the resistances at 28 days were 21.65 MPa for 5%, 10% to 23.03 MPa, 19.23 MPa for 25% and 50% to 18.18 MPa.