Reuso de efluentes na fabricação de blocos de concreto para alvenaria de vedação

This work seeks to assess the use of reuse water from sewage treatment stations in the manufacture of simple concrete hollow blocks. The use of these blocks has been adopted as a rationalization option in the composition of the sealing and structural masonry, providing a reduction in the losses of materials and layers of coating. Made from the mixture of agglomerate, aggregate and water, around 60 m³ of concrete, required for the production of 12,350 blocks (14 x 19 x 39 cm), would consume 4, 500 l of water. The study includes the analysis of the physical and mechanical properties of effluent dosed blocks. Consequently, the results show that these properties remain unchanged, which can make the effluent use viable.