SIST EN 524-1:1999

• Abstract:

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

• Status: Published
• Publication Date: 30-Sep-1999
• ICS: 77.140.75 - Steel pipes and tubes for specific use
• ICS: 91.080.40 - Concrete structures
• Technical Committee: BBB - Concrete, reinforced concrete and prestressed concrete
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Oct-1999
• Due Date: 01-Oct-1999
• Completion Date: 01-Oct-1999
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive:

  ---

  89/106/EEC - Construction products
• Mandate: M/115 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on reinforcing and prestress. steel for concrete
• Ref Project: EN 524-1:1997 - Steel strip sheaths for prestressing tendons - Test methods - Part 1: Determination of shape and dimensions

• Referred By: SIST EN 523:2003 - Steel strip sheaths for prestressing tendons - Terminology, requirements, quality control
• Effective Date: 28-Jan-2026

Overview

SIST EN 524-1:1999 is a European Standard established by CEN that specifies test methods for steel strip sheaths used with prestressing tendons. This first part of the standard focuses on the accurate determination of the shape and dimensions of these steel strip sheaths. Designed to ensure conformity with the requirements of prEN 523, the standard plays a crucial role in quality control and verification for prestressing components in concrete structures.

The standard supports engineers and manufacturers by providing a uniform procedure to assess the physical characteristics of steel sheaths, which are vital in protecting prestressing tendons against corrosion and mechanical damage during and after construction.

Key Topics

• Scope of Testing: Defines procedures for measuring the geometric shape and precise dimensions of steel strip sheaths used in prestressed concrete.
• Measurement Techniques: Details methodologies to examine the sheath’s cross-sectional form and dimensional accuracy, ensuring they meet specific tolerances.
• Compliance Verification: Establishes criteria to verify that steel strip sheaths conform to established standards, facilitating consistent manufacturing quality and structural reliability.
• Application to Prestressing Tendons: Addresses requirements crucial for protecting tendons that provide the tensile strength in prestressed concrete elements.
• Material Considerations: Focuses on steel strip sheaths made from band steel, underlining their importance in specific construction applications due to their mechanical properties and durability.

Applications

• Prestressed Concrete Construction: SIST EN 524-1:1999 is essential for construction projects utilizing prestressing tendons, ensuring the protective sheaths meet quality and dimensional standards to maintain tendon performance and longevity.
• Manufacturing Quality Control: Steel producers and fabricators can apply this test method to consistently produce sheaths that meet design specifications and regulatory requirements.
• Infrastructure Projects: Bridges, tunnels, and large concrete structures benefiting from prestressing techniques require adherence to this standard for sheath selection and verification.
• Corrosion Protection: By confirming correct shapes and dimensions, the standard aids the durability of tendons by preventing defects that could lead to corrosion exposure.

Related Standards

• prEN 523: Specifies technical requirements for steel strip sheaths, providing the baseline for compliance testing described in EN 524-1.
• EN 10152: Covers general steel strip quality and properties relevant to materials used for sheath manufacturing.
• EN 13391: Pertains to prestressing steels, relating to the integration of tendons and their protective components like sheaths.
• ISO 9001: Although not specific to material testing, quality management systems like ISO 9001 often intersect with standards ensuring manufacturing process consistency.

End-users and stakeholders in the construction industry can benefit from adopting SIST EN 524-1:1999 to guarantee the structural integrity and durability of prestressed concrete elements by standardizing sheath quality assurance processes. This standard underlines the importance of precise measurement and conformity to promote safety, reliability, and extended service life in civil engineering applications.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Hüllrohre aus Bandstahl für Spannglieder - Prüfverfahren - Teil 1: Ermittlung der Formen und MaßeGaines en feuillard d'acier pour câbles de précontrainte - Méthodes d'essai - Partie 1: Détermination de la forme et des dimensionsSteel strip sheaths for prestressing tendons - Test methods - P
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