Estimation of construction waste amount generated by demolition of deteriorated single family housing

Construction waste generated in Korea, comprising 49% of the total, account for the largest portion of waste generated in the country. The amount of construction waste generated in Korea has been increasing steadily, and is expected to keep growing. Therefore, for sustainable development of our society, it is necessary to estimate the quantity of construction waste that will be generated and take steps to address this issue. However, in Korea, no research has been conducted regarding construction waste generated from the demolition of deteriorated single-family houses. This study aims to analyze the current state of deteriorated single-family housing in major cities in Korea and estimate the amount of construction wastes generated in different compositions when demolishing this type of housing. Results indicate that 782,791 single-family houses in large cities, comprising 69.50% of the total single-family houses, are deteriorated. Further, the total amount of construction waste generated when demolishing deteriorated single-family housing was 167,795 kt. By composition, concrete waste was 142,424kt (84.88% of the total), iron and other metals were 4,852kt (2.89% of the total), and mixed wastes were 20,520 kt(12.23% of the total).