Application and Study of C80 High Performance Concrete in Freezing Shaft Sinking Techniques

Qian Wang; Tong Wei Lu; Lei Guo

doi:10.4028/www.scientific.net/AMM.353-356.1577

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 353-356Application and Study of C80 High Performance...

Application and Study of C80 High Performance Concrete in Freezing Shaft Sinking Techniques

Abstract:

A study on C80 high performance concrete used in deep freezing mine shaft liner is made. Test results are listed as follows: (1) Concretes compressive strength at 1 day is 53.0 MPa, while the compressive strength at 28 days is 93.5 MPa. (2) The diffusion coefficient of chloride ion at 28 days is 9.8×10^-14m²/s, and freezing-thawing cycle is over 1000 times. The evidence above proves that this concrete can satisfy the requirements of C80 high performance concrete used in freezing shaft sinking techniques.

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Periodical:

Applied Mechanics and Materials (Volumes 353-356)

Pages:

1577-1582

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.353-356.1577

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Online since:

August 2013

Authors:

Qian Wang*, Tong Wei Lu, Lei Guo

Keywords:

Durability, Freezing Mine Shaft, Freezing Shaft Sinking Technique, High-Performance Concrete (HPC)

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* - Corresponding Author

References

[1] Tongwei Lu, Qian Wang and Lei Guo, in: Mine Construction Technology (In Chinese). Vol. 29(6) (2008), p.14.

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