Quantificação das emissões de co2 dos materiais de construção: aço, areia, brita, cerâmica vermelha e cimento - estudo de caso em empreendimento habitacional de interesse social

Abstract

The current scenario construction has shown increasing development in Brazil, although the country is still stuck to issues of education, health, housing, etc. However there is little concern of public and private institutions with the organization of information with regard to energy consumption and hence emissions data arising from the types of energy used for the production of building materials. The Construction sector in Brazil presents significant growth, but still can’t effectively quantify the embodied energy in the materials used. The lack of data is given by the lack of a regulatory policy in the sector by the government and the lack of initiative of companies to assess the amount of energy used for different processes, is the removal of raw materials, transportation, the use of materials and disposal of waste generated. The analysis of the life cycle of a system evaluates energy costs and emissions generation between the phases of extraction of raw materials, materials of construction and deconstruction, allowing expenditures relate to environmental impacts. The work in question is to analyze and quantify the CO2 emissions related to components: steel, sand, gravel, and cement in a red ceramic type construction. The adapted methodology was obtained by quantifying material Curve ABC and calculations of emissions and the Method CO2-QE (Method for the Quantification of Emissions of Carbon Dioxide).Thus, the sand represented the material responsible for higher emissions compared with each other, but to compare the masonry ceramic bricks with concrete blocks, ceramic blocks represented in its life cycle, the alternative less polluting.