Investigação qualitativa e inicial sobre a recuperação de agregados finos por meio da mesa Wilfley com resíduos de construção e demolição

Abstract

The research addresses the sustainable management of construction and demolition waste (RCD), which comprises a diversity of dry solid waste, such as concrete, wood, metals and plaster. The inadequate disposal of these materials in urban areas has considerable environmental implications. The study proposal is an innovative approach to RCD management, emphasizing reuse and recycling for the formation of aggregates in cement mass mixtures. The research uses the Wilfley Table to recover waste in the fine aggregate fraction, collecting RCD real in construction environments. During operational tests, the 260 rpm rotation was discarded due to a material loss of around 30%. On the other hand, the 280 rpm rotation proved to be the most efficient, presenting an insignificant material loss of 0.03%. All tested ranges were successful in the production of fine aggregates and material segregation. These results positively indicate the effectiveness of the Wilfley Table in the segregation and recovery of fines during the RCD management process.