Welded Steel Reinforcement Bar Testing

Welded Steel Reinforcement Bar Testing
(IS 1566 — Welded Mesh Fabric)

Mechanical testing of welded steel fabric and reinforcement bar with welded joints — verifying tensile strength, yield strength, weld shear strength and elongation per IS 1566 for concrete reinforcement applications.

Overview

What is the Welded Steel Reinforcement Bar Testing?

Welded Steel Reinforcement includes welded wire fabric (mesh) and individual bars with welded lap or T-joint connections. IS 1566 specifies both the mechanical properties of the base wire and the shear strength of the welded intersections — critical because weld failure at intersections is the primary failure mode in welded mesh.

At Global Lab, welded steel reinforcement testing per IS 1566 covers base wire tensile strength, yield strength, elongation, weld shear strength at intersections (minimum 0.3× wire cross-sectional area × UTS), mesh opening dimensions and wire spacing — confirming compliance for structural concrete floor slabs, precast elements and industrial floors.

Weld Shear Strength

IS 1566 minimum weld shear = 0.3 × wire area × UTS — primary quality test.

Base Wire Tensile Properties

UTS, yield and elongation of individual wire per IS 1566.

Mesh Dimension Verification

Wire spacing and mesh opening size checked against IS 1566 Table 1.

All Mesh Types

Square, rectangular and long-mesh welded fabric all tested.

NABL Certified Reports

All results on NABL-accredited letterhead per IS 1566.

Precast & In-Situ Use

Results suitable for both precast factory QC and in-situ mesh acceptance.

Test in Action

Welded Steel Reinforcement Bar Testing — Site Images

Weld Intersection Shear Test Setup

Base Wire Tensile Test in UTM

Mesh Opening Dimension Measurement

Test Procedure

How the Welded Steel Reinforcement Bar Testing is Conducted

1

Sample Preparation

Mesh sample cut to include minimum 4 weld intersections per IS 1566.
2

Dimensional Check

Wire diameter, spacing and mesh opening measured vs IS 1566 Table 1.
3

Weld Shear Test

Individual weld intersections tested in shear using calibrated UTM jig.
4

Base Wire Tensile Test

Straight wire lengths tested for tensile strength and elongation.
5

IS 1566 Compliance Report

Weld shear and tensile results vs IS 1566 requirements. NABL report within 3 days.

Standards & Specifications

Applicable Test Standards

Standard	Title	Scope	Type
IS 1566	Hard Drawn Steel Wire Fabric for Concrete Reinforcement — Specification	Welded Mesh	Indian Standard
IS 432 Part 2	Specification for Mild Steel and Medium Tensile Steel Bars	Wire Reference	Indian Standard
ASTM A185	Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete	Welded Mesh	ASTM
BS 4483	Steel Fabric for the Reinforcement of Concrete	Welded Fabric	British Standard

Applications

Where is the CAPO Test Used?

Welded wire mesh acceptance for industrial concrete floor slabs

Precast concrete panel and wall element mesh quality control

Ground slab and raft foundation mesh acceptance testing

Shotcrete mesh for slope stabilisation and tunnel face support

Welded mesh for precast hollow-core slab and composite deck production

Import quality verification for welded mesh from overseas suppliers

Why Choose Global Lab

Our Advantages

NABL Accredited ReportsLegally valid IS 1566 certificates for structural and precast acceptance.

Weld Shear Test CapabilitySpecialised weld shear test jig — not available in all laboratories.

Fast 3-Day ReportComplete IS 1566 test suite within 3 working days.

Pan-India CoverageTesting at all 7 NABL-accredited lab locations.

Precast Industry ExpertiseExperienced in welded mesh testing for precast and industrial floor projects.

Combined Metal PackageWelded mesh + Binding wire + Rebar testing offered together.

Welded Steel Reinforcement Bar Testing(IS 1566 — Welded Mesh Fabric)