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Abstract(s)
A presente dissertação, “Análise de Ciclo de Vida de Betão com Agregados Reciclados para Aplicação Estrutural”, visa a realização de um estudo efetuado de acordo com a metodologia da Análise de Ciclo de Vida com a aplicação de um software.
A industria da construção é conhecida como ambientalmente ineficiente. Sendo o betão um dos materiais mais utilizados na construção, é relevante estudar os impactes ambientais causados pelo seu ciclo de vida, de forma a ser possível implementar estratégias para a diminuição dos impactes ambientais em cada etapa do seu processo de fabrico.
Este estudo compara um betão sem agregados reciclados com quatro betões com diversas percentagens de agregados reciclados. Para avaliar o ciclo de vida dos diferentes betões em estudo foi utilizada a metodologia de ACV, seguindo os requisitos das normas NP EN ISO 14040:2008 e NP EN ISO 14044:2010. Para efetuar o cálculo global dos impactes ambientais das várias fases associadas à produção de betão, onde é possível comparar, quantificar e verificar qual o mais vantajoso em termos ambientais ao longo do seu ciclo de vida, foi utilizado o software OpenLCA.
A partir dos resultados do estudo é possível afirmar que o aumento de percentagem de agregados reciclados na mistura de betão, apresenta um desempenho ambiental mais favorável.
The current dissertation, “Analysis of the Life Cycle of the Concrete with Recycled Aggregates for Structural Application”, aims for the conduction of a study carried out according to the methodology of the analysis of the Life Cycle with the application of a software. The construction industry is known as environmentally inefficient. Being the concrete one of the most used materials in construction, it is relevant to study the environmental impacts caused by its life cycle, in order to be possible to implement strategies for the reduction of environmental impacts at each step of its manufacturing process. This study compares a concrete without recycled aggregates with four other concretes with different percentages of recycled aggregates. In order to evaluate the life cycle of different concretes in the study, it was used the Life Cycle Assessment methodology, following the requirements of ISO 14040 and ISO 14044 norms. To make the overall calculation of the environmental impacts of the different stages associated to the production of concrete, where is possible to compare, quantify and verify which is the most beneficial for the environment throughout their life cycle, it was used the OpenLCA software. From the study results it is possible to say that the increased percentage of recycled aggregates in the concrete mix shows a better environmental performance.
The current dissertation, “Analysis of the Life Cycle of the Concrete with Recycled Aggregates for Structural Application”, aims for the conduction of a study carried out according to the methodology of the analysis of the Life Cycle with the application of a software. The construction industry is known as environmentally inefficient. Being the concrete one of the most used materials in construction, it is relevant to study the environmental impacts caused by its life cycle, in order to be possible to implement strategies for the reduction of environmental impacts at each step of its manufacturing process. This study compares a concrete without recycled aggregates with four other concretes with different percentages of recycled aggregates. In order to evaluate the life cycle of different concretes in the study, it was used the Life Cycle Assessment methodology, following the requirements of ISO 14040 and ISO 14044 norms. To make the overall calculation of the environmental impacts of the different stages associated to the production of concrete, where is possible to compare, quantify and verify which is the most beneficial for the environment throughout their life cycle, it was used the OpenLCA software. From the study results it is possible to say that the increased percentage of recycled aggregates in the concrete mix shows a better environmental performance.
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Keywords
Agregados Reciclados Análise de Ciclo de Vida Betão Impactes Ambientais Openlca