Academic Journal of Architecture and Geotechnical Engineering, 2023, 5(7); doi: 10.25236/AJAGE.2023.050703.
Xue Han1, Shanshan Ouyang2, Zhuo Yu3
1Beijing Urban Construction Seventh Construction Engineering Co., Ltd, Beijing, 100029, China
2School of Civil Engineering, Anhui University of Science & Technology, Huainan, 232000, China
3Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
The construction industry emits a large amount of greenhouse gases every year, which significantly impacts the world's environment. Therefore, more and more researches focus on energy saving and emission reduction in building projects. The life cycle assessment method has occupied a dominant position in the environmental assessment of construction projects in recent years. This method can measure the environmental impact of any stage or the entire life cycle of a construction project. However, in the calculation process, researchers often do not pay attention to the calculation of carbon emissions of construction workers. Some studies directly ignore this factor, while more studies use per capita carbon emission values based on national data, which do not reflect the daily habits of construction workers. This study is based on the consumer lifestyle method, combined with the personal or household carbon emission calculator developed by the Hong Kong Environment and Ecology Bureau, and conducted field visits to investigate the actual habits and related data of construction workers in the four aspects of necessities of life in actual projects. After getting the per capita data of each item, bring it into the carbon emission calculator to get the per capita carbon emission considering the characteristics of construction workers. Finally, the data obtained in this study are brought into the previous related research, and it is found that the carbon emissions and proportion of workers have increased.
Life cycle assessment; Building carbon emission; Construction worker
Xue Han, Shanshan Ouyang, Zhuo Yu. Research on Carbon Emissions of Construction Workers in the Full-cycle Environmental Assessment of Construction Projects. Academic Journal of Architecture and Geotechnical Engineering (2023) Vol. 5, Issue 7: 14-19. https://doi.org/10.25236/AJAGE.2023.050703.
[1] R. E. López-Guerrero, S. Vera, and M. Carpio, “A quantitative and qualitative evaluation of the sustainability of industrialised building systems: A bibliographic review and analysis of case studies,” Renew. Sustain. Energy Rev., vol. 157, 2022, doi: 10.1016/j.rser. 2021.112034.
[2] I. S. O. ISO, “ISO 14040 international standard,” Environ. Manag. Cycle Assessment-Principles Fram. Int. Organ. Stand., 2006.
[3] H. Wang, H. Zhang, K. Hou, and G. Yao, “Carbon emissions factor evaluation for assembled building during prefabricated component transportation phase,” Energy Explor. Exploit., vol. 39, no. 1, pp. 385–408, Jan. 2021, doi: 10.1177/0144598720973371.
[4] L. Xue, C. Li, and Y. Jin, “An improved carbon emission calculation framework of precast concrete column in construction stage based on LCA,” J. Chinese Inst. Eng., pp. 1–9, Feb. 2023, doi: 10.1080/02533839.2023.2170924.
[5] W. S. Alaloul, M. A. Musarat, M. S. Liew, A. H. Qureshi, and A. Maqsoom, “Investigating the impact of inflation on labour wages in Construction Industry of Malaysia,” Ain Shams Eng. J., vol. 12, no. 2, pp. 1575–1582, Jun. 2021, doi: 10.1016/j.asej.2020.08.036.
[6] R. Santos, A. A. Costa, J. D. Silvestre, T. Vandenbergh, and L. Pyl, “BIM-based life cycle assessment and life cycle costing of an office building in Western Europe,” Build. Environ., vol. 169, p. 106568, Feb. 2020, doi: 10.1016/j.buildenv.2019.106568.
[7] J. Wang, D. D. Tingley, M. Mayfield, and Y. Wang, “Life cycle impact comparison of different concrete floor slabs considering uncertainty and sensitivity analysis,” J. Clean. Prod., vol. 189, pp. 374–385, Jul. 2018, doi: 10.1016/j.jclepro.2018.04.094.
[8] Q. Du, T. Bao, Y. Li, Y. Huang, and L. Shao, “Impact of prefabrication technology on the cradle-to-site CO2 emissions of residential buildings,” Clean Technol. Environ. Policy, vol. 21, no. 7, pp. 1499–1514, Sep. 2019, doi: 10.1007/s10098-019-01723-y.
[9] Z. Ding, S. Liu, L. Luo, and L. Liao, “A building information modeling-based carbon emission measurement system for prefabricated residential buildings during the materialization phase,” J. Clean. Prod., vol. 264, p. 121728, Aug. 2020, doi: 10.1016/j.jclepro. 2020.121728.
[10] X.-J. Li, J. Lai, C. Ma, and C. Wang, “Using BIM to research carbon footprint during the materialization phase of prefabricated concrete buildings: A China study,” J. Clean. Prod., vol. 279, p. 123454, Jan. 2021, doi: 10.1016/j.jclepro. 2020.123454.
[11] X. Li, W. Xie, L. Xu, L. Li, C. Y. Jim, and T. Wei, “Holistic life-cycle accounting of carbon emissions of prefabricated buildings using LCA and BIM,” Energy Build., vol. 266, p. 112136, Jul. 2022, doi: 10.1016/j.enbuild. 2022.112136.
[12] X. Li, W. Xie, T. Yang, C. Lin, and C. Y. Jim, “Carbon emission evaluation of prefabricated concrete composite plates during the building materialization stage,” Build. Environ., vol. 232, p. 110045, Mar. 2023, doi: 10.1016/j.buildenv. 2023.110045.
[13] S. Bin and H. Dowlatabadi, “Consumer lifestyle approach to US energy use and the related CO2 emissions,” Energy Policy, vol. 33, no. 2, pp. 197–208, Jan. 2005, doi: 10.1016/S0301-4215(03)00210-6.
[14] “05/01348 Consumer lifestyle approach to US energy use and the related CO2 emissions,” Fuel Energy Abstr., vol. 46, no. 3, p. 197, May 2005, doi: 10.1016/S0140-6701(05)81353-0.
[15] Hong Kong Environment Bureau, “Low Carbon Living Calculator,” 2022, [Online]. Available: https://www.carboncalculator.gov.hk/en