The logic behinddefensible anchor evidence.
ATA follows a structured path from pre-test specification through loading, monitoring, and acceptance. The sequence below translates AS 5216, BS 8539, AEFAC TN05, and VicRoads Section 680 into practical field decisions.
How anchor testing works on site,step by step and decision by decision.
This sequence condenses the practical workflow behind AEFAC TN05, BS 8539, AS 5216 and VicRoads Section 680. It is not a substitute for a project-specific test specification, but it shows the logic inspectors, engineers and contractors are expected to follow in the field.
- Confirm anchor type, substrate, embedment depth and installation crew.
- Set proof load from the governing project standard or engineering specification.
- Nominate monitoring profile: load only, first-visual or full displacement logging.
Sampling only makes sense when the population is consistent: same anchor type, same substrate, same installation method and same installer cohort. Change any of those variables and the standard treats it as a new population.
Final proof load, hold duration, displacement limits and test quantities must still be set by the responsible engineer and project specification. The animation shows the governing logic from the standards, but the test plan remains project-specific.
Choosing the right test type
Proof Test
Non-destructive. Verifies correct installation by loading anchors to a prescribed proof load. Tests performed on working anchors intended for use on the project.
Ultimate Test
Destructive. Determines actual anchor capacity in a given substrate. Anchors tested to failure on sacrificial specimens not intended for project use.
Step-by-step methodology
Preparation
- Verify anchors match structural drawings (size, type, location)
- Confirm base material has achieved minimum specified strength
- Remove obstructions and fixtures from test anchors
- Clean anchors, remove excess epoxy, burrs, and grime
- Assemble test rig with correct leg spacing for configuration type
Execute Test
- Attach coupler to threaded rod or jaw set to reinforcing bar
- Align test rig parallel to anchor to avoid inducing bending
- Apply load progressively, achieve proof load within 1–3 minutes
- Hold proof load for minimum 30 seconds (60 seconds per VicRoads)
- Monitor gauge for sudden load drops or static readings
- Listen for crackling; watch for displacement, cracking, or spalling
Assess & Report
- Record peak load and sustained load (load after 30-second hold)
- Check sustained load is within 10% of peak load
- Document any observations: load slip, movement, spalling
- Photograph test setup and results for engineering review
- Mark test number next to anchor; include "F" if failed
- Submit RPEQ-backed test report to responsible engineer
Deriving Proof Loads
Critical limit: Proof load must not exceed 0.7× yield capacity of the fastener steel to prevent permanent damage. Proof load held for minimum 30 seconds (AEFAC) or 60 seconds (VicRoads). Load must not drop more than 10% during hold period.
Confined vs unconfined
Confined Configuration
Test rig supports sit close to anchor, restricting base material breakout.
Unconfined Configuration
Test rig supports placed outside cone perimeter, allowing all failure modes.
How many anchors to test?
VicRoads provides the most comprehensive guidance on test quantities based on lot size. AEFAC recommends a minimum of 3 specimens or 2.5% of the population, whichever is greater.
A test sample population is defined as anchors with the same type, same base material, same installation method, and same installation personnel. Where any of these change, it constitutes a separate population.
VicRoads Table 680.091 - Proof Test Quantities
Standards & guidelines
Australian anchor design standard covering anchor theory, concrete cone design model, and capacity calculations for post-installed and cast-in fastenings.
British Standard providing comprehensive guidance on anchor selection, installation, testing (proof and ultimate), and reporting. Defines test regimes in Annex B.
Australian guidelines covering general testing procedures (Vol 1), proof tests (Vol 2), ultimate tests (Vol 3), and testing in masonry (Vol 4). Published by Australian Engineered Fasteners and Anchors Council.
First Australian industry body to codify anchor testing. Specifies proof load multipliers (1.5× serviceability, 2× cracked concrete), test quantities by lot size, and 60-second hold requirement.
European standard for masonry anchor design. Covers masonry-specific failure modes including brick pull-out and brick push-out. Referenced in absence of Australian masonry anchor standard.
Australian concrete design standard. Post-installed reinforcing bar may be designed as cast-in reinforcing bar under AS 3600 when development and lapping requirements are satisfied (Reinforcing Bar Theory).
UK guidance for the management and design of safety-critical fixings. Covers risk review, work planning, cyclical inspection, and incident case studies from infrastructure failures.
Provides test report format and requirements for structural testing including load test data reporting, environmental conditions, and evaluation methodology.
Specifies performance requirements and test methods for fall arrest anchor devices used in harness-based work at height. Introduces four rated capacity levels (12 kN, 15 kN, 18 kN, 21 kN) and substrate-specific testing requirements.
Covers selection, safe use, inspection, and maintenance of fall arrest systems including anchors, harnesses, lanyards, and lifelines. Requires proof testing of drilled-in anchors at 50% of design ultimate strength.
Service programmes that use these standards
Anchor Pull-Out Testing
Non-destructive proof load verification per AS 5216 and AEFAC TN05.
Rock Anchor Testing
Ultimate and proof testing in Brisbane rock and heterogeneous substrates.
Fall Arrest Anchor Testing
Anchor point compliance testing per AS 5532:2025 and AS/NZS 1891.4.
Standards Reference
Full guide to AS 5216, AEFAC TN05, BS 8539, VicRoads 680, and AS 5532.
Need this methodology adapted to your anchor programme?
We can help define proof loads, sampling rates, monitoring requirements, and the reporting basis before testing is booked.