2017-07-072017-07-072016-11-22SILVA, Elzelis Muller da. Estudo da reciclagem de lodo de ETA na fabricação de agregados sintético na mistura com cinza volante de carvão mineral. Orientador: José Antônio da Silva Souza. 2016. 163 f. Tese (Doutorado em Engenharia de Recursos Naturais da Amazônia) – Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2016. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/8804. Acesso em:.https://repositorio.ufpa.br/handle/2011/8804The Wastes (sludge) generated in the Water Treatment Plants (WTP) and fly ash from coal-fired power plants cause problems by the amount and concentration of harmful substances in them. Thus, this study aimed to produce synthetic aggregates using sludge WTP Bolonha (Belém/PA) and fly ash assessing their technical and environmental viability. The composition of the synthetic aggregates consisted of a high concentration of these residues in mixture with clay to molding and sintering at temperatures of 1200°C and 1250°C. The physical, mineralogical and microstructural analyzes of the synthetic aggregate were performed. Two concrete were produced, one with synthetic aggregate, and other references. In concrete were assessed their physical and mechanical properties in fresh and hardened state, and their microstructures. For the characterization of the concrete waste leaching and dissolution testing were performed. Synthetic aggregates were classified as lightweight aggregate for its low bulk density (<2.0 g / cm3) according to NBR 7211 (ABNT, 2009). The concrete produced with sintered aggregate (AGS-02) at 1250 °C was classified as non structural lightweight concrete according to the norms NBR 6118 (ABNT, 2014) and NBR 8953 (ABNT, 2015). The concrete of waste were classified as waste class IIB, non-hazardous and inert by NBR 10004 (ABNT, 2004) and within the limits of Resolutions No. 20/1986 and 430/2011 CONAMA into rivers class 2. It is noteworthy the synthetic aggregate meets the demands of the construction industry, reduces the consumption of raw materials and offers an alternative to the final disposal of waste.Acesso AbertoEngenharia de recursos naturaisAproveitamento de resíduosConstrução civilLodoAgregado sintéticoConcreto leveCinza volanteEstações de tratamento de água (ETA)Belém - PAPará - EstadoNatural resource engineeringWaste useConstructionSludgeSynthetic aggregateLight concreteWater treatment plants (WTP)TeseCNPQ::ENGENHARIAS::ENGENHARIA CIVIL::CONSTRUCAO CIVIL::MATERIAIS E COMPONENTES DE CONSTRUCAO