1.1 This specification covers two types and two grades of seven-wire, uncoated steel strand for use prestressed concrete construction. The two types of strand are low-relaxation and stress-relieved (normal-relaxation). Low-relaxation strand is to be regarded as the standard type. Stress-relieved (normal-relaxation) strand will not be furnished unless specifically ordered. Grade 250 [1725] and Grade 270 [1860] have minimum tensile strengths of 250 ksi [1725 MPa] and 270 ksi [1860 MPa], respectively, based on the nominal area of the strand.
Product Details
- Published:
- 09/01/2012
- Number of Pages:
- 5
- File Size:
- 1 file , 79 KB
- Redline File Size:
- 2 files , 120 KB
