Caracterização e classificação dos resíduos de construção civil da cidade de Fortaleza (CE)

Abstract

This study aims to analyze the gravimetric composition, evaluate chemical parameters and classify the construction waste (CW) of Fortaleza city according to CONAMA Resolution N° 307 and to NBR 10004. Results show that Fortaleza's CW is composed by 93, 40% of Group A, 6,40% Group B, 0,02% Group C and 0,2% Group D. The first is composed primarily by sand and gravel (24, 65%) and mortar (22,00%), that are materials with high potential for reuse or recycling. Moreover, according to chemical analysis, Fortaleza's CW showed a high variability in all parameters. Cr, Pb and SO42-, for example, showed above to the limits specified by NBR 10004, indicating that this material have to be classified as Class II-A (not dangerous and not inert).