Life Cycle Impact Assessment (LCIA) is a phase of the Life Cycle Assessment (LCA) in order to quantify various environmental impacts based on the inventory analysis. Weighting although is not the mandatory element of LCIA is the element in which local data becomes important. Potential environmental impacts and the importance of particular impacts can be quite significant among the countries or regions. Determination of the importance degree is possible by weighting of the selected environmental impact categories. Therefore, this study aimed to develop local weighting factors (WFs) by taking the environmental issues into consideration for the building materials produced in Turkey. And 11 environmental impact categories such as global warming, ozone depletion, acidification, photochemical ozone formation, eutrophication, fossil fuel depletion, mineral resource depletion, water depletion, land use, indoor air quality and waste were selected considering environmental impacts caused by the building materials and environmental issues in Turkey. And WFs of these categories for Turkey were determined by using a panel approach. Thus, it can be possible to assess environmental impacts of building materials by using local data.
Building materials damage to the environment during each stage of their life cycle. An important part of these damages is due to the energy consumption during the process. Many building materials sector like cement, iron, steel, glass etc use high rates of fuel and electrical energy. Greenhouse gases resulting from the use of energy lead to global warming that cause climate change. And acid rain damages living and non- living beings on the earth. In addition, volatile organic compounds and granular particles as a result of combustion of fossil sources enter the human body through the respiratory or digestive systems which lead to serious illnesses. Therefore, responsible use of energy is important for both resource efficiency and reducing environmental impacts. An important part of life cycle energy of building materials is consumed during the production and transportation processes. In this study, it is aimed to investigate initial embodied energy of cement, marble, glass and aluminum sectors in Turkey. The current situation was stated by the method of literature review and inventory analysis of the energy flow to calculate the amount of the total energy consumption of the building materials during these processes was recommended. Thus, it will be possible to compare the amount of total energy consumption in different production plants.
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