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ASTM
A779/A779M-16
Standard Specification for Steel Strand, Seven-Wire, Uncoated, Compacted for Prestressed Concrete
2016
4
ASTM Vol.01.04 (2022)
This specification covers seven-wire, uncoated, compacted, stress-relieved steel strand for prestressed concrete. The chemical requirements, mechanical requirements, and dimensions and permissible variations are presented. The mechanical requirement includes breaking strength, load at 1% extension and elongation. Different test method shall be performed on the strand that includes dimension test, breaking strength test, load at 1% extension test, elongation test and workmanship.