CEN/TC 104
| Project No. | EN 523:1997 |
|---|---|
| Title | This Stnadard is applicable to uncoated cylindrical steel sheaths with a corrugated profile and with a nominal internal diameter of up to 130 mm and their connectors (couplers) which are assembled to form ducts for prestressing tendons in post-tensioned prestressed concrete elements. It applies only to sheaths and connectors made of interlocked or welded strip. The seals required between sheaths and couplers are not covered by this standard. |
| Registration number (WIID) | 2507 |
| Scope | This Stnadard is applicable to uncoated cylindrical steel sheaths with a corrugated profile and with a nominal internal diameter of up to 130 mm and their connectors (couplers) which are assembled to form ducts for prestressing tendons in post-tensioned prestressed concrete elements. It applies only to sheaths and connectors made of interlocked or welded strip. The seals required between sheaths and couplers are not covered by this standard. |
| Status | Atcelts |
| ICS group | 77.140.75 91.080.40 |