Anchor Proof Testing

Anchor proof testing is the direct method of verifying that post-installed anchors in concrete or masonry achieve the required load capacity. Chemical anchors, mechanical expansion anchors, and undercut anchors are tested by applying a controlled tensile or shear load to the installed anchor and measuring its response. The test confirms whether the anchor system, comprising the anchor, adhesive (where applicable), and substrate, performs as designed under the specified loading.

TRSC conducts anchor proof testing using calibrated hydraulic test equipment, applying load incrementally while monitoring displacement. Each anchor is loaded to the specified proof load (typically a percentage of the design ultimate capacity) and held for the required duration. Load-displacement behaviour is recorded to identify any anchor slip, adhesive creep, or substrate distress. Anchors that sustain the proof load without excessive displacement or failure are confirmed as adequate.

Proof testing is particularly critical for safety-critical fixings: facade support anchors, barrier connections, overhead equipment supports, and structural connections where anchor failure could result in collapse or falling hazard. For existing structures where anchor installation quality cannot be verified by inspection alone, proof testing provides the definitive evidence of installed capacity.