Use of Long, Variable Length Steel Fibres in Shotcrete

by Åke Skarendahl, Swedish Cement and Concrete Research, Inst, Stockholm, Sweden,



Document Type: Proceeding Paper

Part of: Shotcrete for Underground Support V

Abstract: Steel wires are cut to fibres in a shotcrete nozzle and directly incorporated in the ejected shotcrete. Long and variable length fibres can be used. The fibre material is better utilized as concrete fracture will depend on fibre fracture in addition to debonding. Method is used in precast concrete production.

Subject Headings: Steel fibers | Cracking | Precast concrete | Shotcrete | Material mechanics | Bonding

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