| Title |
A Study on LCC Analysis by Floor Finishing Material to Reduce NOX in Urban Areas - Focusing on the photocatalytic pavement and cement pavement - |
| Authors |
Bong, Jiwan ; Lee, Chanhee ; Choe, Suhyeon ; Kim, Han Soo ; Jeong, Kwangbok |
| DOI |
https://dx.doi.org/10.6106/KJCEM.2024.25.5.073 |
| Keywords |
Life cycle cost; Photocatalytic pavement; NOX; Urban park |
| 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 costsaving 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. |