Reducing the carbon footprint of new reinforced concrete structures in aggressive environments
From real experience to future applications
Publication date
2025-01-09
Document type
Konferenzbeitrag
Author
Hernandez, Juan Daniel Cassiani
Organisational unit
Conference
1st International Conference on Net-Zero Built Environment (NTZR 2024) ; Oslo, Norway ; 19-21 June, 2024
Publisher
Springer Nature
Series or journal
Lecture Notes in Civil Engineering
Periodical volume
237
Book title
The 1st International Conference on Net-Zero Built Environment : Innovations in Materials, Structures, and Management Practices
First page
697
Last page
706
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Abstract
The carbon emissions of future reinforced concrete structures need to be considered throughout their entire life cycle to meet CO₂ reduction targets. This is critical for structures exposed to aggressive environments, such as chloride, due to the increased risk of reinforcement corrosion. Premature degradation caused by steel corrosion leads to significant repairs, increasing both the CO₂ footprint and also the costs of the structure over its service life. This work proposes a design framework that integrates the laboratory performance concept consigned in the new Eurocode 2 and Sustainability Assessment. The framework’s applicability is demonstrated through a case study inspired by an existing structure. By employing a multi-criteria decision-making method, the proposed framework concurrently considers environmental impact and cost, facilitating the selection of the most balanced alternative in terms of environmental reduction objectives and budget constraints. The results show that appropriately selecting the Exposure Resistance Class leads to more cost-effective and environmentally friendly structures.
Version
Published version
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