Análise da geração de resíduos sólidos e do consumo de água e de energia elétrica em três obras de construção civil de uma construtora em Campo Mourão – Paraná

Abstract

The optimization of construction processes, which aims to reduce costs and increase the efficiency of works, is directly related to the reduction of waste of water, electricity and building materials. Considering the importance of this sustainability, which will lead to greater savings on the works, as well as reducing environmental impacts, the Brazilian Habitat Quality and Productivity Program (PBQP-H) establishes some indicators as tools to assist in the measurement and analysis of some criteria of constructions. Therefore, this work aims to calculate these indicators for water and electricity consumption, and solid waste generation in three different constructions with similar characteristics, in the city of Campo Mourão - Paraná. To reinforce the analyzes, other quality tools were also used, such as the Statistical Process Control (SPC) Individual Value and Moving Range Control Charts, which allow a comparison between the works in question. The comparisons between the indicators of the different works presented satisfactory results, with similar values, considering the period of their measurements, as well as the construction phase of each work. The comparisons between the three works using the CEP were also satisfactory, since most of the measurements made are between the pre-established limits. In the different works, some non-compliance points were found for both water and electricity consumption, as well as for solid waste generation, and these points came from similar sources. For water consumption, the indicators (measured in m³ per m²) were 0,1835 (work A), 0,3393 (work B) and 0,2724 (work C). Concerning electricity consumption, in kWh/m², the indicators for works A, B and C were, respectively, 1,7006, 2,5936 and 2,5398. For solid waste generation, works A, B and C showed indicators of 0,03886, 0,08893 and 0,07782 m³/m², respectively.