“Steel fibre-reinforced shotcrete”的意思、由来-开放百科全书

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Steel fibre-reinforced shotcrete

释义

Advantages
Applications and types
See also
References

Steel fibre-reinforced shotcrete (SFRS) is shotcrete (spray concrete) with steel fibres added. It has higher tensile strength than unreinforced shotcrete and is quicker to apply than weldmesh reinforcement. It has often been used for tunnels.^[1]^[2]

Advantages

The primary advantages of fibre-reinforced shotcrete are:

Addition of steel fibers into the concrete improves the crack resistance (or ductility) capacity of the concrete. Traditional rebars are generally used to improve the tensile strength of the concrete in a particular direction, whereas steel fibers are useful for multidirectional reinforcement. This is one of the reasons why steel fiber reinforced (shotcrete form) concrete successfully replaced weldmesh in lining tunnels.
Less labour is required.
Less construction time is required.

Applications and types

SFRS has various types, which are applicable to differing situations. Primary uses are:

Tunnels - uses short steel fibers
Industrial floorings - uses long steel fibers

References

1. ^{{cite book | url = https://books.google.com/books?id=GDBsfdaNZu0C&pg=PA266 | title = Fibre Reinforced Cement and Concrete: Proceedings of the Fourth RILEM International Symposium | publisher = RILEM (International Union of Laboratories and Experts in Construction Materials, Systems, and Structures) | editor-first=R. N. | editor-last=Swamy | date=31 December 1990}}
2. ^{{cite book | url = https://books.google.com/books?id=XeGKeYa8d30C&pg=PA363 | title = Underground Excavations in Rock: Published for the Institution of Mining and Metallurgy | editor-first=E. | editor-last=Hoek | date = 31 December 1990 | publisher = Elsevier Applied Science}}

2 : Concrete|Fibre-reinforced cementitious materials

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Advantages

Applications and types

See also

References