#1 Anchor Pull-Out Test — Non-Destructive Testing

Anchor Pull Out Test
(Anchor Tensile Capacity Test)

In-situ tensile load test on installed anchors, bolts and fasteners to verify their pull-out capacity in concrete — essential for façade, cladding, curtain wall and structural anchorage acceptance testing.

Overview

What is the Anchor Pull Out Test?

The Anchor Pull Out Test applies a direct tensile load to installed anchors (chemical anchors, mechanical expansion anchors, cast-in bolts) to verify they achieve the specified characteristic resistance. The test confirms that the anchor installation — drilling diameter, depth, cleanliness, adhesive curing and torque — meets design requirements.

Conducted as per ASTM E488 and IS 456, anchor pull-out tests are mandatory for façade and cladding anchors, safety-critical fixings, post-installed rebar connections and structural steel base plate anchors. Global Lab uses calibrated hydraulic pull-out testers for proof load and ultimate load tests.

Proof Load Testing

Verifies every anchor meets specified proof load — 100% acceptance testing available.

Ultimate Load Testing

Determines actual failure load for design calibration on selected sample anchors.

All Anchor Types

Chemical, expansion, undercut and cast-in anchors all tested.

Calibrated Hydraulic Tester

NABL-calibrated hydraulic jack with digital load display for accurate force measurement.

NABL Certified Reports

All results on NABL-accredited letterhead per ASTM E488.

Pass/Fail Certification

Individual pass/fail result for each anchor tested — suitable for acceptance records.

Test in Action

Anchor Pull Out Test — Site Images

Hydraulic Pull-Out Tester on Anchor

Anchor Pull-Out Test on Site

on Site

Test Procedure

How the Anchor Pull Out Test is Conducted

1

Anchor Selection

Test anchors are selected per project specification — typically 1% of installed anchors or minimum 5 per anchor type.
2

Pull-Out Head Attachment

A threaded coupling or gripping head is attached to the anchor rod or bolt.
3

Reaction Frame Positioning

The hydraulic pull-out tester reaction frame is positioned over the anchor with standoff distance per ASTM E488.
4

Load Application

Tensile load is applied at a controlled rate using the hydraulic pump. Load is displayed on the digital gauge.
5

Result Recording & Reporting

Maximum load achieved, failure mode (anchor pull-out, concrete cone, rebar/anchor failure) and pass/fail status recorded. NABL report within 24 hours.

Standards & Specifications

Applicable Test Standards

Standard	Title	Scope	Type
ASTM E488	Standard Test Methods for Strength of Anchors in Concrete Elements	Anchor Pull-Out	ASTM
IS 456:2000	Plain and Reinforced Concrete — Code of Practice	Anchorage	Indian Standard
ETAG 001	Guideline for European Technical Approval of Metal Anchors	European Anchor Standard	ETAG
ACI 318 Appendix D	Anchoring to Concrete — Strength Design	Anchor Design	ACI

Applications

Where is the CAPO Test Used?

Façade and cladding anchor acceptance testing on high-rise buildings

Curtain wall and unitised glazing system anchor verification

Structural steel base plate anchor bolt acceptance for industrial structures

Post-installed rebar connection testing for structural strengthening

Safety-critical overhead and suspended equipment anchor testing

Mast, hoarding and temporary structure anchor verification

Why Choose Global Lab

Our Advantages

NABL Accredited ReportsLegally valid anchor acceptance certificates for all contractual and statutory requirements.

100% Testing AvailableEvery installed anchor tested for safety-critical applications.

All Anchor TypesChemical, expansion, undercut and cast-in anchors across all diameters.

Pan-India CoverageField teams across 7 lab locations for rapid site deployment.

Fast TurnaroundOn-site results immediately; NABL report within 24 hours.

Failure Mode AnalysisWritten assessment of failure mode and recommendations for non-conforming anchors.

Anchor Pull Out Test(Anchor Tensile Capacity Test)