Resíduos de constru？？o e demoli？？o: avalia？？o de métodos de quantifica？？o

in this paper, construction and demolition waste generation was estimated by two quantification methods, one direct and other indirect, regarding informal and formal generators. construction area and transformation of the points of water and energy were applied for indirect quantification method. for the direct one, volume of dumping areas associated with informal and formal generators in different regions of municipality were quantified and the mass balance was applied. indirect quantification of informal generators by transformation points of water is not precise. there are evidences that transformation points of energy can be more precise, avoiding costly direct construction and demolition waste quantification method.