Study on sustainable technology of construction waste in carbon neutrality: concrete decarbonization in Hong Kong

Zhaojia Ye

doi:10.1117/12.3015368

6 February 2024 Study on sustainable technology of construction waste in carbon neutrality: concrete decarbonization in Hong Kong

Zhaojia Ye

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129792Y (2024) https://doi.org/10.1117/12.3015368
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

In Hong Kong, one of the most significant current discussions in carbon neutrality before 2050 is the concrete waste solution. Hong Kong has put in years of effort and achieved excellent results in environmental protection, while it is limited to concrete waste recycling technology practices. This study shows current research on concrete waste in Hong Kong and analysis of international frontier issues supported by a considerable amount of literature, attempting to show practical suggestions about carbon-neutral concrete in prevention, reusing, and recycling. Specifically, this study finds that hemp concrete is a potential replacement to prevent concrete waste and CO₂ emission, while recycled lump/aggregate concrete (RLCA) is a better option for Hong Kong high-rise buildings. In addition, waste glass (WG), waste plastic (WP), and waste wood (WW) in landfill area in Hong Kong plays a significant role in recycling concrete. Finally, yet importantly, it is necessary to discuss locking CO₂ in recycling concrete technology under the global carbon neutrality trend.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhaojia Ye "Study on sustainable technology of construction waste in carbon neutrality: concrete decarbonization in Hong Kong", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129792Y (6 February 2024); https://doi.org/10.1117/12.3015368

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