Life Cycle Assessment of Civil Engineering Works : And Application of European Standards on the Mälar Project
Abstract: In this thesis, a framework is constructed for a life cycle assessment within a civilengineering project. There are various methods available on how to conduct lifecycle assessments and this thesis explores one method related to civil engineeringworks. The assessment follows the structure based in related standards such asEN 15804 which describes how to declare construction products. A working copyof a possible upcoming European level standard for sustainability assessment ofcivil engineering works is also used in the process. The object of assessment arethe materials, concrete and steel, in the retaining walls that are constructed alongthe channel near Södertälje Harbour. This is a part of a larger project, called theMälar Project.The life cycle of these type of constructions often stretches over long periodsof time which leaves a lot of uncertainties while estimating the impacts during thelater life stages. The research problem is much about how to handle the differentmodules of the life cycle regarding civil engineering works.Example data were collected and presented for each module of the life stage.The results of the example data showed that most of the impact came from theproduct stage. The conclusions are that the collection of data should be an integratedpart in the operating procedures for the company for a more efficientprocess, Environmental Product Declarations are a good source of data and standardson European level gives good guidelines on how to conduct a life cycleassessment for civil engineering projects.
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