• KSCE Journal of Civil and Environmental Engineering Research
• /
• v.44 no.4
• /
• pp.555-565
• /
• 2024

The government has enacted legislation to enforce selective dismantling in order to increase the recycling of construction waste. Therefore, this study aims to propose a standard quantity per unit estimation method, crucial for determining the expenses associated with large-scale demolition projects necessary for public development, particularly in the context of extensive land development ventures. Four individual houses were thoroughly examined and tested. We surveyed the house to create a floor plan and conducted a detailed investigation of interior materials in order to propose a Standard Quantity per Unit for cost estimation of the selective dismantling work. The process encompassed precise measurement of the houses, creation of schematics, thorough scrutiny of interior materials, and division of the dismantling process into components such as ceilings, walls, and floors. The duration of each dismantling task was meticulously documented. Particular emphasis was placed on refining the methodology to accommodate factors such as window openings, thereby ensuring a heightened level of precision compared to preceding studies. The outcomes of this study are anticipated to serve as practical benchmarks for estimating costs in demolition projects, thereby fostering sustainable development within the construction industry.

• Journal of the Korean Recycled Construction Resources Institute
• /
• v.11 no.3
• /
• pp.251-259
• /
• 2023

In this study, as a foundational research aimed at promoting the efficient recycling and environmentally friendly disposal of construction waste through the activation of a selective dismantling system, our primary objective was to analyze the economic feasibility of implementing selective dismantling. To achieve this, we conducted an assessment on a 5-story residential building with a construction area of 2,400 m² as a case study. When considering the additional cost of dismantling construction ① the reduction in waste disposal costs due to decreased mixed waste, ② and the potential revenue from recycling through the separation and sorting of waste materials, and ③ we were able to comprehensively confirm that there is an expected cost-saving effect totaling 34,727,000 KRW when compared to conventional demolition methods.

• Journal of the Korean Recycled Construction Resources Institute
• /
• v.12 no.2
• /
• pp.222-228
• /
• 2024

This study aims to anal yze the social benefits of introducing a sel ective demol ition system for buil dings. Incremental revenue, incremental cost, and incremental profit for the entire nation were derived based on the calculated costs and revenues of selective demolition for a 2,400 m² apartment complex. In conducting selective demolition on a 2,400 m² building, the increase in demolition construction costs, the reduction in waste disposal costs due to the decrease in mixed waste, and the revenue obtained from recycling separated and sorted waste were comprehensively reviewed. It was calculated and analyzed that, compared to general demolition work, a total cost-saving effect of 34,727,000 KRW could be expected. Extrapolating this to the entire nation, based on the year 2020, which had the highest construction waste generation, it is estimated that the social benefits would amount to 746,782,886,000 KRW.