Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)

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Life Cycle Assessment of 3D Printed Recycled Concrete

Authors
Chenyuan Ji1, Zengfeng Zhao1, 2, *
1Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai, 200092, China
2Key Laboratory of Performance Evolution and Control for Engineering Structures of Ministry of Education, Tongji University, Shanghai, 200092, China
*Corresponding author. Email: zengfengzhao@tongji.edu.cn
Corresponding Author
Zengfeng Zhao
Available Online 24 December 2024.
DOI
10.2991/978-94-6463-606-2_21How to use a DOI?
Keywords
3D printed concrete; Recycled aggregate concrete; Life cycle assessment; anisotropic properties
Abstract

As an advanced construction technology, 3D printed concrete (3DPC) currently faces challenges such as high cement consumption and stringent aggregate quality requirements. Using recycled aggregates (RA) from crushed and screened waste concrete to produce recycled 3DPC can help government manage significant amounts of construction and demolished waste and conserve natural resources. By replacing 30% and 50% of natural aggregates (NA) with RA, the study reveals that incorporating RA reduces the strength of 3D printed concrete while increasing its anisotropy. This study also uses the Life Cycle Assessment (LCA) method to analyze the environmental impact during the production stage of RA. The results show that producing RA has a significantly lower environmental impact compared to the production of natural sand. The transportation distance is a crucial factor and the transportation distance should not be longer than 25 km.

Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)
Series
Advances in Engineering Research
Publication Date
24 December 2024
ISBN
978-94-6463-606-2
ISSN
2352-5401
DOI
10.2991/978-94-6463-606-2_21How to use a DOI?
Copyright
© 2024 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Chenyuan Ji
AU  - Zengfeng Zhao
PY  - 2024
DA  - 2024/12/24
TI  - Life Cycle Assessment of 3D Printed Recycled Concrete
BT  - Proceedings of the 2024 6th International Conference on Civil Engineering, Environment Resources and Energy Materials (CCESEM 2024)
PB  - Atlantis Press
SP  - 179
EP  - 185
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-606-2_21
DO  - 10.2991/978-94-6463-606-2_21
ID  - Ji2024
ER  -