DOI QR코드

DOI QR Code

Comparison of the Construction Waste Generated by the Project and the Estimation of the Waste Generation Unit

건설공사 공정별 건설폐기물 발생량 비교 및 폐기물 발생 원단위 산정에 관한 연구

  • Song, Tae-Hyeob (Korea Institute od Civil Engineering and Building Technology) ;
  • Seong, Jin-Uk (Department of Enviromental Engineering, Kumoh National Institute of Technology)
  • Received : 2017.09.26
  • Accepted : 2017.12.21
  • Published : 2017.12.30

Abstract

The generation of construction waste can be divided into a decommissioning phase and a new construction phase, and most of the waste is generated at the decommissioning stage. However, recently, domestic new construction construction has expanded to 150 trillion yards per year, so construction work is increasing rapidly. Especially, as the size of the construction work with much waste of construction waste exceeds 100 trillion, the management of the amount of construction waste in the new construction site is required. Unlike the dismantling work site, the new construction site can separate waste generated by each property, and relatively low foreign matter content is generated. The purpose of this study was to investigate the amount of construction waste generated by new construction sites and to calculate the unit amount of construction waste based on this. In addition, since the existing unit cost is centered on concrete and mixed waste, we set the basic unit by setting synthetic resin, waste wood, and waste board as additional items. The basic unit survey was carried out to investigate the wastes according to the characteristics of each construction period. As a result of the survey, the new construction site showed that most wastes were discharged in the first 30% and after 70% of the process, and the ratio of mixed construction waste was as high as 45%. As a result of this study, it was found that about twice as much waste was produced as compared with the conventional standard product.

건설폐기물의 발생은 해체단계와 신축단계로 구분할 수 있으며 대부분의 폐기물은 해체단계에서 발생하고 있다. 그러나 최근 국내 신축 건설공사가 연간 150조 규모로 확대됨에 따라 신축공사가 급격하게 증가하고 있다. 특히 건설폐기물 배출이 많은 건축공사의 규모가 100조를 초과함에 따라 신축현장에서의 건설폐기물 발생량에 대한 관리가 요구되고 있다. 신축현장은 해체공사 현장과 달리 발생된 폐기물을 성상별로 분리하여 배출이 가능하며, 상대적으로 이물질 함량이 적게 발생한다. 본 연구에서는 신축현장의 건설폐기물 성상별 발생량을 조사하고, 이를 바탕으로 건설폐기물 발생 원단위를 산정하고자 하였다. 또한 기존 발생 원단위가 콘크리트와 혼합폐기물 중심으로 되어 있어 합성수지, 폐목재, 폐보드류를 추가적인 항목으로 설정하여 원단위 설정을 하였다. 원단위 조사는 총 공사 기간별 발생하는 성상별 폐기물 조사를 실시하였다. 조사결과 신축건설현장은 초반 30%까지와 70% 이후의 공정에서 대부분의 폐기물이 배출되는 것으로 보사되었으며, 혼합건설폐기물의 비율이 45%로 높게 나타났다. 원단위 분석결과 본 연구에서 산출한 결과는 기존의 표준 품셈에 비하여 약 1.9배의 폐기물이 배출되는 것으로 나타났다.

Keywords

References

  1. Statistical Office. (2016). Construction Orders in 2016. Korea National Statistical Data, kosis.kr.
  2. MOCT (2012). Construction Standard Product.
  3. Ministry of Environment. (2012). Korea Environment Corporation, 2011 Status of Waste Generation and Disposal Nationwide.
  4. Kim, H.Y., Kim, C.H., Lee, C.G. (2004). A Study on EstimationCriteria of Construction, Korea Institute of ConstructionManagement.
  5. KEI. (2004). A Study on the Separation and Discharge of Construction Waste and Estimation of Generated Unit Cost.
  6. Ministry of Environment. (2011). The 2nd Basic Plan for Recycling of Construction Waste.
  7. KICT (2009). Construction Dismantling System of Construction Waste and Calculation of Proper Construction Cost, Ministry of Environment.
  8. Kim, Y.I., Song, T.H., Lee, S.H. (2013). A study on classification and estimation of occurrence rate of construction wastes for improvement of material recycling rate, Journal of the Architectural Institute of Korea, 29(12).