Proceedings of the 2024 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)

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Study on Application of Machine-made Sand Self compacting Concrete in Tunnel Secondary Lining

Authors
Xiaomiao Huang1, Qi Gao1, Guihong Dong2, 3, *
1The Sixth Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd, Zhuhai, 519085, China
2GuangZhou Harbor Engineering Quality Examination Co., Ltd., Guangzhou, 510230, China
3CCCC Fourth Harbor Engineering Institute Co., Ltd., Guangzhou, 510230, China
*Corresponding author. Email: dguihong@cccc4.com
Corresponding Author
Guihong Dong
Available Online 7 June 2024.
DOI
10.2991/978-94-6463-429-7_43How to use a DOI?
Keywords
Mechanism sand; self-compacting concrete; workability; stone powder; tunnel secondary lining
Abstract

An environmentally friendly self-compacting concrete for tunnel lining was prepared by replacing river sand with mechanism sand, adding appropriate amounts of stone powder and fly ash to adjust the workability and reduce cement consumption. After studying the effects of different coarse aggregate gradations, sand ratios, stone powder contents, and fly ash contents on the workability of the self-compacting concrete, the optimal mix proportion was determined. The best results were obtained when the coarse fine aggregate proportion was 6:4, the sand ratio was 0.43, the stone powder content was 5%, the fly ash content was 25%, and the water-cement ratio was 0.32, which met the engineering strength requirements. This provides a theoretical basis for the application of mechanism sand self-compacting concrete in tunnel secondary lining works.

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 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)
Series
Atlantis Highlights in Engineering
Publication Date
7 June 2024
ISBN
978-94-6463-429-7
ISSN
2589-4943
DOI
10.2991/978-94-6463-429-7_43How 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  - Xiaomiao Huang
AU  - Qi Gao
AU  - Guihong Dong
PY  - 2024
DA  - 2024/06/07
TI  - Study on Application of Machine-made Sand Self compacting Concrete in Tunnel Secondary Lining
BT  - Proceedings of the 2024 7th International Conference on Structural Engineering and Industrial Architecture (ICSEIA 2024)
PB  - Atlantis Press
SP  - 407
EP  - 414
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-429-7_43
DO  - 10.2991/978-94-6463-429-7_43
ID  - Huang2024
ER  -