Abstract
The construction sector significantly contributes to global carbon emissions, making it a critical focus for achieving global carbon neutrality and meeting the sustainable development goals. As concrete structures age, carbon emissions associated with interventions are necessary to ensure their structural safety and durability. However, interventions conducted during structure operations generate carbon emissions and disrupt current functionality until ultimately demolished. Therefore, it is essential to consider both carbon emissions and operational impact when selecting interventions. This study introduces a novel approach by proposing an evaluation metric, known as the Carbon Output Impact Index, to optimize the intervention selection. This index comprehensively assesses the environmental impact associated with various intervention methods. Additionally, a simplified example is provided to illustrate the practical application of this approach, aiming to contribute to sustainable development in the construction industry. We believe that this work can provide preliminary insights and foundational considerations for the green and low-carbon development of research in the field of reinforcement and repair of structures, especially buildings for a Net Zero Carbon and Sustainable Future. © 2025 International Federation for Structural Concrete.
| Original language | English |
|---|---|
| Number of pages | 16 |
| Journal | Structural Concrete |
| Online published | 7 Jul 2025 |
| DOIs | |
| Publication status | Online published - 7 Jul 2025 |
Funding
The authors acknowledge the kindness and support of all members of the Ueda laboratory at Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, and Shenzhen Key Laboratory for Low-carbon Construction Material and Technology during the development of this work, as well as the startup funding of the City University of Hong Kong “Advanced Functional Construction Materials (AFCM) for Sustainable Built Environment” (Project code 9380165).
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 8 Decent Work and Economic Growth -
SDG 9 Industry, Innovation, and Infrastructure -
SDG 12 Responsible Consumption and Production
Research Keywords
- carbon emission
- carbon neutrality
- concrete structure
- intervention
- strategy optimization
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: This is the peer reviewed version of the following article: Wang, J., Wang, Y., Mehrpay, S., Dai, J.-G., & Ueda, T. (2025). Optimizing intervention strategies of concrete structures considering carbon output impact. Structural Concrete. Advance online publication., which has been published in final form at https://doi.org/10.1002/suco.70184.
- This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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