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]
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 typesedit
SFRS has various types, which are applicable to differing situations. Primary uses are:
^Swamy, R. N., ed. (31 December 1990). Fibre Reinforced Cement and Concrete: Proceedings of the Fourth RILEM International Symposium. RILEM (International Union of Laboratories and Experts in Construction Materials, Systems, and Structures). ISBN9780419181309.
^Hoek, E., ed. (31 December 1990). Underground Excavations in Rock: Published for the Institution of Mining and Metallurgy. Elsevier Applied Science. ISBN9780419160304.
May 11, 2024
steel, fibre, reinforced, shotcrete, sfrs, shotcrete, spray, concrete, with, steel, fibres, added, higher, tensile, strength, than, unreinforced, shotcrete, quicker, apply, than, weldmesh, reinforcement, often, been, used, tunnels, contents, advantages, applic. 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 Contents 1 Advantages 2 Applications and types 3 See also 4 ReferencesAdvantages editThe 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 editSFRS has various types which are applicable to differing situations Primary uses are Tunnels uses short steel fibers Industrial floorings uses long steel fibersSee also editFibre reinforced concreteReferences edit Swamy R N ed 31 December 1990 Fibre Reinforced Cement and Concrete Proceedings of the Fourth RILEM International Symposium RILEM International Union of Laboratories and Experts in Construction Materials Systems and Structures ISBN 9780419181309 Hoek E ed 31 December 1990 Underground Excavations in Rock Published for the Institution of Mining and Metallurgy Elsevier Applied Science ISBN 9780419160304 Retrieved from https en wikipedia org w index php title Steel fibre reinforced shotcrete amp oldid 1144157616, wikipedia, wiki, book, books, library,
