CEN/TC 104/WG 7 - Sheaths for prestressing tendons

This European Standard lays down the procedure for determining the flexibility of sheaths for prestressing tendons which comply with prEN 523.

This European Standard lays down the procedure for determining the leaktightness of sheaths for prestressing tendons which comply with prEN 523.

This European Standard lays down the procedure for determining the tensile load resistance of sheaths for prestressing tendons which comply with prEN 523.

This European Standard lays down the procedure for determining the lateral load resistance for prestressing tendons which comply with prEN 523.

This European Standard specifies the procedure for determining the flexural behaviour of sheaths for prestressing tendons which comply with prEN 523.

This European Standard lays down the procedure for determining the shape and dimensions of sheaths for prestressing tendons which comply with prEn 523.

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.