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Abstract(s)
A construção é responsável por uma parte considerável das emissões de dióxido de carbono, o que permite afirmar que há um problema de sustentabilidade relacionado com as obras de Engenharia Civil. Esta crescente preocupação conduziu à criação de métodos de avaliação dos impactes ambientais provocados por produtos e sistemas. De modo a que haja independência e igualdade para todos os promotores responsáveis pela construção, definem-se vários indicadores e certificações tanto a nível nacional (LiderA e SBTOOLPT) como internacional (BREEAM e LEED). Estas certificações centram-se na Análise de Ciclo de Vida para avaliar o comportamento ambiental dos edifícios, encorajando as equipas responsáveis a tomar decisões mais sustentáveis e, consequentemente, diminuir a pegada ecológica da construção. Realizar a Análise de Ciclo de Vida na construção é um processo complexo, reunindo conceitos de Engenharia Civil e de ambiente. Este processo requer a realização de cálculos específicos da Pegada de Carbono dos materiais, uma área que os engenheiros civis não têm formação. Acresce ainda a dificuldade de que a maioria dos materiais não apresenta valores tabelados relativos à sua Pegada de Carbono. Com isto em conta, nesta dissertação é apresentada uma metodologia à base de dois processos: um Método Expedito e um Método Detalhado. O primeiro é baseado na consulta de tabelas e permite reunir informações para o Método Detalhado. O Método Detalhado é um processo mais complexo que recorre ao uso de uma plataforma online de Análise de Ciclo de Vida, denominada One Click LCA. Esta metodologia é aplicada numa obra de Engenharia Civil em Valadares, Vila Nova de Gaia, que se acompanhou durante 4 meses.
Construction is responsible for a considerable part of carbon dioxide emissions, which allows us to say that there is a sustainability problem related to Civil Engineering works. This growing concern has led to the creation of methods to assess the environmental impacts caused by products and systems. So that there is independence and equality for all developers responsible for the construction, several indicators and certifications are defined both at national level (LiderA and SBTOOLPT) and international (BREEAM and LEED). These certifications focus on Life Cycle Assessment to assess the environmental behavior of buildings, encouraging responsible teams to make more sustainable decisions and, consequently, reduce the ecological footprint of the construction. Conducting Life Cycle Assessment in construction is a complex process, bringing together Civil Engineering and environmental concepts. This process requires carrying out specific calculations of the Carbon Footprint of materials, an area that civil engineers are not trained in. There is also the difficulty that most materials do not have tabulated values relative to their Carbon Footprint. In this sense, this dissertation presents a methodology based on two processes: an Expedited Method and a Detailed Method. The first is based on querying tables and helps to gather information for the Detailed Method. The Detailed Method is a more complex process that uses an online Life Cycle Assessment platform, called One Click LCA. This methodology is applied in a Civil Engineering work in Valadares, Vila Nova de Gaia, which was monitored for 4 months.
Construction is responsible for a considerable part of carbon dioxide emissions, which allows us to say that there is a sustainability problem related to Civil Engineering works. This growing concern has led to the creation of methods to assess the environmental impacts caused by products and systems. So that there is independence and equality for all developers responsible for the construction, several indicators and certifications are defined both at national level (LiderA and SBTOOLPT) and international (BREEAM and LEED). These certifications focus on Life Cycle Assessment to assess the environmental behavior of buildings, encouraging responsible teams to make more sustainable decisions and, consequently, reduce the ecological footprint of the construction. Conducting Life Cycle Assessment in construction is a complex process, bringing together Civil Engineering and environmental concepts. This process requires carrying out specific calculations of the Carbon Footprint of materials, an area that civil engineers are not trained in. There is also the difficulty that most materials do not have tabulated values relative to their Carbon Footprint. In this sense, this dissertation presents a methodology based on two processes: an Expedited Method and a Detailed Method. The first is based on querying tables and helps to gather information for the Detailed Method. The Detailed Method is a more complex process that uses an online Life Cycle Assessment platform, called One Click LCA. This methodology is applied in a Civil Engineering work in Valadares, Vila Nova de Gaia, which was monitored for 4 months.
Description
Keywords
Análise de Ciclo de Vida Desenvolvimento Sustentável Construção Sustentável Declaração Ambiental do Produto Pegada de Carbono One Click LCA Sustentabilidade Life Cycle Assessment Sustainable Development Sustainable Construction Environmental Product Declaration Carbon Footprint Sustainability