ABSTRACT
British Standards for Tendons. The requirements for prestressing tendons are set out in the following British Standards:
BS 5896:1980: Steel wire for prestressed concrete — High tensile steel wire and strand for the prestressing of concrete
BS 4757:1971: Nineteen — wire steel strand for prestressed concrete BS 4486:1969: Cold worked high tensile alloy steel bars for prestressed concrete
Wires and Strands. The wire is required to be cold drawn from plain carbon steel (BS 5896) or patented plain carbon steel (BS 4486). The usual chemical com position is shown in Table 4.1.