| 요약2 |
This study aims to calculate the CO2 emissions by the properties of construction waste to establish a LCI DB of construction waste generated at the disuse stage. The CO2 emissions from apartment houses was calculated by calculating the energy consumptions by treatment steps to calculate the CO2 emissions by the treatment steps of construction waste. As a result of analyzing the CO2 emissions from a total of 27 complexes, maximum 46,791g-CO2/㎡, minimum 34,893g-CO2/㎡ and average 38,713g-CO2/㎡ were generated, and were varied by the quantity of construction waste in general, but were affected by the transportation distance in case of transportation steps as well. As a result of analyzing the CO2 emissions by the properties of construction waste, average 19,815.50g-CO2/㎡ was generated, the highest, from the example complex at the demolition stage in case of construction wastes, and 1.72g-CO2/㎡ was generated, the lowest, during reclamation. In case of combustible waste, average 11,495.63g-CO2/㎡ was generated, the highest, from the example complex during incineration of wastes, and 21.48g-CO2/㎡ was generated, the lowest, at the waste transportation stage. In case of noncombustible waste, average 522.43g-CO2/㎡ was generated, the highest, from the example complex at the demolition stage, and 1.07g-CO2/㎡ was generated, the lowest, at the transportation stage. In case of other construction wastes, average 645.42g-CO2/㎡ was generated, the highest, from the example complex at the demolition stage, and 47.38g-CO2/㎡ was generated, the lowest, at the middle treatment stage. |