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Test Methods and Specifications

Cover of Pretensioned Concrete Members
Pretensioned Concrete Members
  • Publication no: ATS-5326-25
  • Published: 16 December 2025
  • Edition: 1.2

Austroads Technical Specification ATS 5326 sets out the requirements for the supply of pretensioned precast concrete members (‘Pretensioned Members’), such as piles, girders and bridge planks / deck units.

The Contractor must ensure that the Manufacturer of the Pretensioned Members complies with this Specification and the Drawings. The Contractor may be the same entity as the Manufacturer.

This technical specification can also be downloaded as a Word document.

Edition 1.2 published December 2025

  • Annexure A – update of hold point text in summary table to align with instances in the document
  • Table 14.2 a) and Table 14.2 b) – formatting

Superseded editions

Edition 1.1 published August 2025

  • Clause 7.2 – ACRS website address amended
  • Clause 7.20 – reference changed to AS 3850.3
  • Clause 8.1 – requirement for internal vibrators added
  • Clause 16.3 – merged with clause 16.2
  • Clause 3.1, 7.7, 7.11, 7.12, 7.13, 11.11 – amended references. AS 4672.1 and AS/NZS 4672.2 both replaced by AS 4672

Edition 1.0 published February 2025

  • 1. Scope
  • 2. Referenced Documents
  • 3. Definitions
  • 4. Quality System Requirements
  • 5. Personnel
  • 6. Design
  • 7. Materials
    • General
    • Steel Prestressing Materials
    • Traceability
    • Storage and Surface Condition
    • Other Materials
  • 8. Formwork
    • General
    • Void Formers
    • Fillets
  • 9. Equipment
    • Tensioning Equipment
    • Stressing Beds
  • 10. Stressing Calculations
  • 11. Stressing Operations
    • General
    • Placing Tendons
    • Stressing of Tendons
    • Measurement of Tension in Tendons
    • Non-Correlation Between Actual and Required Jacking Force
    • Action if Concreting is Delayed
    • Stressing Records
  • 12. Concrete Placement
    • Placement
    • Finish
  • 13. Transfer of Prestress
    • General
    • Precautions for Delayed Transfer
    • Production of Subsequent Members
    • Treatment After Transfer of Prestress
  • 14. Tolerances
  • 15. Marking, Handling, Storing and Transportation
    • General
    • Marking
  • 16. Inspection and Records
  • Annexure A: Summary of Hold Points, Witness Points and Records
  • Amendment Record
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