Open AccessANÁLISE DA VIABILIDADE DE UTILIZAÇÃO DO LODO DE INDÚSTRIA FRIGORÍFICA EM SUBSTITUIÇÃO PARCIAL DO AGREGADO DE CONCRETO NÃO ESTRUTURAL
Author(s) -
Alexandre Teixeira de Souza,
Ruth Mello da Silva,
Stefany Camargo Miranda
Publication year - 2021
Publication title -
colloquium exactarum
Language(s) - English
Resource type - Journals
ISSN - 2178-8332
DOI - 10.5747/ce.2020.v12.n3.e326
Subject(s) - effluent , environmental science , pulp and paper industry , waste management , chemistry , materials science , welfare economics , environmental engineering , engineering , economics
Much of thesludge present in the effluent treatment stations is destined for disposal in an inappropriate place or without the correct treatment, which can significantly affect the environment. Therefore, the current research aims to analyze the dry sludge of a refrigeration industry as a partial substitution of fine aggregate for non-structural concrete, making it necessary to choose features with a lower proportion of this in order not to extrapolate consumption costs. The specimens subsidized by NBR 5738 weremolded with partial addition of dry refrigerator sludge to replace fine aggregate, being 2%, 5% and 8%, respectively, and tested for axial compression in the Civil Engineering laboratory of UNOESTE. Through the results obtained, there was an increase in resistance compared to the standard trace in the specimens with less addition of sludge, however the solid residue retains a large amount of water, making it necessary to choose a trace with a lower proportion.