Test Methods and Specifications

Cover of Supply of Special Class Concrete
Supply of Special Class Concrete
  • Publication no: ATS-5315-23
  • Published: 17 May 2023
  • Edition: 1.0

Austroads Technical Specification ATS 5315 sets out the requirements for the supply of Special Class Concrete used in:

  • bridges with a design life of 100 years; and
  • if specified the Contract documents, other structures such as retaining walls, culverts, deflection walls and safety barriers.

This technical specification can be downloaded as a Word document.

Implementation of this technical specification relies on the availability of technical specifications which are in development:

  • ATS 5321  Temperature Matched Curing and the Maturity Method
  • ATS 5328  Sprayed Concrete
  • ATS 5335  Normal Class Concrete
  • ATM 765  Determination of Calcium Nitrite Quantity in Fresh Concrete (Test Strips)

This technical specification has been published to allow Austroads member agencies to prepare for implementation.

  • 1. Scope
  • 2. Referenced Documents
  • 3. Definitions
  • 4. Quality System Requirements
  • 5. Supply of Concrete
  • 6. Mix Design (refer 5100.5 Section 4)
    • General
    • Submission of the Mix Design
    • Target Strength
    • Concrete for Cast-in-Place Piles
    • Requirements for Concrete in Exposure Classifications Other than U
    • Combined Aggregate Grading
    • Self-Compacting Concrete and High Workability Concrete
    • Nominated Slump and Spread
  • 7. Trial Mix
    • Self-Compacting Concrete and High Workability Concrete
    • Chloride Ingress
    • Drying Shrinkage
    • Extended Placement Time
  • 8. Concrete Constituents – Cementitious Materials
  • 9. Concrete Constituents – Aggregates
    • General
    • Testing of Aggregates
    • Coarse Aggregates
    • Fine Aggregates
  • 10. Concrete Constituents – Mixing Water
  • 11. Concrete Constituents – Chemical Admixtures
  • 12. Concrete Constituents – Limitations on Chemical Content
  • 13. Alkali Aggregate Reaction
  • 14. Plant and Equipment
  • 15. Production and Delivery
    • General
    • Water Left in the Mixer or Agitator
    • Addition of Water to a Mixed Batch
    • Concrete Temperature and Period for Completion of Discharge
    • Delivery Docket
  • 16. Sampling and Testing of Plastic Concrete
    • General
    • Consistency Testing
    • Reduced Rate of Sampling and Testing
    • Slump or Spread Outside the Specified Tolerance
    • Presence of Corrosion Inhibitor in Plastic Concrete
  • 17. Sampling and Testing of Hardened Concrete for Compressive Strength
    • Sampling
    • Compressive Strength Testing
    • Monitoring of Concrete Strength
    • Post 28 day Strength Testing
  • 18. Durability Testing using the Volume of Permeable Voids Test
  • 19. Non-conforming Concrete
  • Annexure A: Summary of Hold Points, Witness Points and Records
  • Annexure B: Examples of VSI Rating of “0”