Strength Development of Shotcrete in Compressed Air Pressurised Underground Environment

P.L. Ng; Albert T. Yeung

doi:10.4028/p-a608Zu

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 986Strength Development of Shotcrete in Compressed...

Strength Development of Shotcrete in Compressed Air Pressurised Underground Environment

Abstract:

Shotcrete and compressed air are often utilised for providing temporary support in tunnel excavation. On occasions of concurrent application of shotcrete and compressed air, there would be concerns of the quality of concrete sprayed within pressurised space, as well as the strength development of shotcrete in pressurised environment. To address these concerns, field experimentation of the shotcrete strength development under compressed air pressure was conducted, and the results are reported in this paper.

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Periodical:

Key Engineering Materials (Volume 986)

Pages:

75-81

DOI:

https://doi.org/10.4028/p-a608Zu

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Online since:

August 2024

Authors:

P.L. Ng*, Albert T. Yeung

Keywords:

Compressed Air, Shotcrete, Strength Development

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* - Corresponding Author

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