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      • Decreasing CO<sub>2</sub> Emissions and Embodied Energy during the Construction Phase Using Sustainable Building Materials

        Saadah, Yasmeen,AbuHijleh, Bassam Sustainable Building Research Center 2010 International journal of sustainable building tech Vol.1 No.2

        A great quantity of $CO_2$ is emitted to the atmosphere during the different phases of a building's life cycle: in the production of materials and products, in the construction of the building itself, in the setting up of the site, in the exploitation, the renovations, the later rehabilitations, up to the final demolition. The present paper shows the possibility of reducing the embodied energy in building materials up to 55% and the $CO_2$ emissions produced up to 43% in the construction phase, through a careful selection of sustainable building materials. The purpose of this study is to quantify the total amount of $CO_2$ emissions and embodied energy that can be saved by the method presented in the particular phase of the material selection within the life cycle of a building. This material selection, as well as the bioclimatic characteristics, must be defined from the early design project phase. The research presented here has been carried out as a case study on an existing high-rise residential building in the UAE constructed in a conventional way and with no specific selection of materials. The building is compared to a hypothetically created building with similar characteristics but using sustainable building materials.

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