Decision making process assisted by Life Cycle Assessment: Greenhouse gas emission

Ludimilla de Oliveira Zeule

Laís David Vinhal

Sheyla Mara Baptista Serra

Douglas Barreto

ABSTRACT: The concept of sustainability has been spreading in the construction industry introducing tools and methods that may assist in the process of decision m aking and allowing improvements in management techniques as much as in production processes. Thus, this research aims the selection of materials by means of the proposition of a decision making method – the Choosing by Advantage (CBA) assisted by the Life Cycle Assessment (LCA). It was adopted a commonly employed component in temporary facilities of construction sites in the construction industry, the tiles. The adopted tiles were composed by recycIed material (polyethylene – aluminum) and by non – recycIed materials (gaIvanized steel). It was applied a multi-criteria methodology, in which the CBA method propose 5 the analysis of the best type of tile according to sustainability parameters – ecological, economic and social. In this study, LCA complements the CBA by means of the evaluation of environmental impacts, where the factor “Carbon Dioxide Equivalent (Emission COZeq)” was examined as a factor generated by the transportation of the tiles from the factory to the authorized reseller. By means of the implementation of the decision making method, it was verified the feasibility regarding the application of the LCA as a support tool to the CBA method for the selection of materials that cause less impact as a positively complementary methodology. It is concluded that the adopted methodology assists in the dissemination of sustainability in the stage of execution, according to a systemic approach based on sound information.

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