Cálculo da pegada hídrica dos serviços de concretagem de uma edificação de estrutura convencional

Abstract

The recurrent drought events in Ceará, combined with the vulnerability of the population and productive activities to these events, reveal the importance of developing studies related to the rational use of water. Based on this perspective, the main objective of this article is to measure the water footprint (PH) of the concreting services of a building and, consequently, to estimate the expenses related to water and sewage in order to demonstrate the possibility of developing an activity sustainable production. Based on the methodology of Hoekstra et al. (2011), the volume of water used for the production and implantation of the cubic meter of concrete was calculated and the applicability of the method in the civil construction sector was evidenced. The results obtained point to the representativeness of a mere stage of construction and show that the use of such a resource, besides generating environmental impacts, directly interferes with the project budget. Finally, this case study may guide other research and contribute to the elaboration of parameters of the water footprint.