Abstract
The objective of this study is to perform a diagnosis of the Construction Waste (CW) generation at sites in the city of Recife, Brazil, and obtain indicators to improve waste management. This involved the collection of data through the establishment of partnerships with construction companies that build multifamily residential buildings in the region. To organize the information, a spreadsheet database was developed, containing the survey of the construction characteristics from each construction project, such as the phase, built area, total land area, demolition and excavation area, number of floors, execution time, among others. From this analysis, it was verified that the total CW generation increases as the built area increases. However, the generation rate has an inverse relationship, being higher for the projects with smaller built areas. It is therefore necessary to consider the size of the project in order to use the correct CW generation rate. The results obtained by the analysis of these 20 worksites indicate that new indicators of waste generation are required by construction phase and by size of the built area, in order to properly estimate how much CW was generated and the costs to manage it.
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