AASHTO M 203M/M 203-20 PDF Download
Standard EN
Standard Specification for Steel Strand, Uncoated Seven-Wire for Concrete Reinforcement
Also Known As:
The AASHTO M 203M/M 203-20 standard is a specification that outlines the requirements for uncoated, seven-wire steel strand used for concrete reinforcement in prestressed concrete construction. This standard specifically covers two grades of steel strand - Grade 1725 [250] and Grade 1860 [270].
Grade 1725 has a minimum ultimate strength of 1725 MPa [250 ksi], while Grade 1860 has a minimum ultimate strength of 1860 MPa [270 ksi]. These values are based on the nominal area of the steel strand.
The steel strand specified in this standard is low-relaxation, which means it has the capacity to maintain tension over time. This is important in prestressed concrete construction, where the steel strand is tensioned before the concrete is poured to improve its strength and durability.
| Language(s) | English |
| File Size | 133.1 KB |
