Korean Journal of Construction Engineering and Management (한국건설관리학회논문집)

Korea Institute of Construction Engineering and Management (한국건설관리학회)
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A Study on LCC Analysis by Floor Finishing Material to Reduce NOX in Urban Areas - Focusing on the photocatalytic pavement and cement pavement -

  • Bong, Jiwan (Department of Architecture, College of Engineering, Sejong University) ;
  • Lee, Chanhee (Department of Architecture, College of Engineering, Sejong University) ;
  • Choe, Suhyeon (Department of Architecture, College of Engineering, Sejong University) ;
  • Kim, Han Soo (Department of Architecture, College of Engineering, Sejong University) ;
  • Jeong, Kwangbok (Deep Learning Architecture Research Center, Department of Architectural Engineering, College of Engineering, Sejong University)
  • Received : 2024.03.20
  • Accepted : 2024.07.17
  • Published : 2024.09.30
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Abstract

In South Korea, NOX emissions are a major concern, leading to acid rain and smog, harming both the atmosphere and human health, particularly in urban areas. This study seeks to determine the most advantageous pavement material for NOX reduction in urban areas and assess whether photocatalytic pavement blocks, proven to reduce NOX emissions, can serve as a viable alternative to conventional cement pavement blocks. To achieve this, a comparative life cycle cost (LCC) analysis was conducted between photocatalytic pavement blocks and conventional cement pavement blocks installed for their NOX reduction capabilities. The cost-saving benefits of NOX reduction were monetized for photocatalytic pavement blocks. The analysis period was based on the least common multiple of the replacement cycles of both pavement materials: 30 years. The results revealed that while photocatalytic pavement blocks initially produce higher installation costs than cement pavement blocks, they offer greater cost savings in terms of total cost and net present value due to their NOX reduction effect over the life cycle. Additionally, the cost-saving effects of photocatalytic pavement blocks are even more pronounced because their replacement period is 5 years longer than that of cement pavement blocks. This study holds significance in performing an LCC analysis of the previously unanalyzed photocatalytic pavement blocks while also demonstrating their potential as substitutes for cement pavement blocks.

Keywords

Acknowledgement

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (No. RS-2023-00271991) and the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. RS-2024-00336441).

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