4.2.3. Disposal Stage

For transporting construction waste, the vehicle loads for the amount of construction waste involved in each work type was considered in Table 4 and the vehicle loads were analyzed. After analyzing the input breakdown by work type, it was found that reinforced concrete work accounted for a large proportion. For the landfill and incineration processes, the detailed amounts involved in construction waste for each work type were analyzed in Table 4. The landfill-incineration emissions factor regarding construction waste, and data regarding the landfill-incineration rate, were analyzed by referencing a statistical survey report on construction waste recycling, and the Korea statistical yearbook for waste from the Korea Ministry of Environment. After analyzing the demolition stage of this study, the total amount of CO2 emissions was found to be 0.076 kg-CO2/m<sup>2</sup> as shown in Figure 7, which was the lowest figure among the three stages. Moreover, because waste from rebar, concrete, and related products are abundant during work with reinforced concrete, it was found that higher amounts of CO2 emissions resulted from work with reinforced concrete than from other work types. Because the amount of CO2 emissions from the landfill process was 98%, it accounted for the majority of the demolition stage emissions, and analysis showed that the amount of CO2 emissions from waste produced from plaster boards took up a high proportion among the other construction wastes in the landfill process.
