Abstract
The purpose of this study is to analyze CO2 emission based on computation of construction waste which occurs during new constructions. To accomplish the purpose, Basic unit data of existing construction wastes was analyzed and basic unit of construction wastes generated during new constructions was proposed. In addition, basic unit of CO2 in the disposal process of construction waste established as the national LCI DB of Korea was applied to analyze CO2 emission during the disposal process of waste (landfill, incineration, recycling) generated during new constructions. As a result, flammable materials showed relatively high emission of 17.75kg-CO2/kg and 2.40kg-CO2/kg for the landfill process and recycling process, and inflammable materials had high emission of 0.74kg-CO2/kg for the incineration process. As a result of analysis for each waste, emission was found to be in decreasing order of landfill and recycling processes for concrete, recycling, landfill and incineration processes for metals, incineration, recycling and landfill processes for wood and flammable materials, and landfill, recycling and incineration processes for inflammable materials.
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