Codes & Standards - Purchase
G279-1975 (R1998)
Steel for Prestressed Concrete Tendons (Imperial version)
SKU: 2415753
Published by CSA Group
Publication Year 1975
Reaffirmed in 1998
Withdrawn
Product Details
Scope
1.1 General
This Standard covers uncoated stress-relieved wire, uncoated seven-wire stress-relieved strand, and high-strength alloy steel bars used in prestressed concrete construction. All requirements are applicable to such wire, strand, and bars unless specifically stated otherwise.
1.2 Wire
This Standard covers uncoated stress-relieved round high-carbon steel wire for use in prestressed concrete construction in button head type (cold end deformation) and wedge type anchorage. The use of quench and tempered wire shall not be permitted.
1.3 Strand
This Standard covers two grades of seven-wire, uncoated, stress-relieved steel strand for use in pre-tensioned and post-tensioned prestressed concrete construction. Grade 250K and Grade 270K have minimum ultimate strengths of 250,000 psi and 270,000 psi respectively, based on the nominal steel area of the strand. The use of quench and tempered wire shall not be permitted.
1.4 Bars
This Standard covers plain or deformed high-tensile strength alloy bars having a nominal diameter greater than 0.350 inch. The use of quench and tempered bars shall not be permitted.
1.1 General
This Standard covers uncoated stress-relieved wire, uncoated seven-wire stress-relieved strand, and high-strength alloy steel bars used in prestressed concrete construction. All requirements are applicable to such wire, strand, and bars unless specifically stated otherwise.
1.2 Wire
This Standard covers uncoated stress-relieved round high-carbon steel wire for use in prestressed concrete construction in button head type (cold end deformation) and wedge type anchorage. The use of quench and tempered wire shall not be permitted.
1.3 Strand
This Standard covers two grades of seven-wire, uncoated, stress-relieved steel strand for use in pre-tensioned and post-tensioned prestressed concrete construction. Grade 250K and Grade 270K have minimum ultimate strengths of 250,000 psi and 270,000 psi respectively, based on the nominal steel area of the strand. The use of quench and tempered wire shall not be permitted.
1.4 Bars
This Standard covers plain or deformed high-tensile strength alloy bars having a nominal diameter greater than 0.350 inch. The use of quench and tempered bars shall not be permitted.