ISO 15630-2:2019

Overview

ISO 15630-2:2019 - Steel for the reinforcement and prestressing of concrete - Test methods - Part 2: Welded fabric and lattice girders specifies the accepted chemical, mechanical and geometrical test methods for welded fabric (also known as welded wire reinforcement) and lattice girders used to reinforce concrete. The standard focuses on laboratory test procedures for quality verification and product characterization; it does not cover sampling rules (these are in the applicable product standards). Annex A gives a list of options for agreement between parties where choices are permitted.

Key topics and technical requirements

This part of ISO 15630 defines standardized test methods and measurement protocols including:

• Tensile tests (test pieces, equipment and procedures) to determine mechanical behaviour of wires and welded intersections.
• Bend tests on welded intersections to assess ductility and joint performance.
• Shear tests to determine weld shear force for welded fabric and various shear tests for lattice girders (weld points and clamped joints).
• Axial force fatigue tests to evaluate fatigue resistance under cyclic axial loading.
• Chemical analysis procedures for verifying material composition.
• Measurement of geometrical characteristics (wire spacing, mesh geometry, lattice dimensions).
• Specialized tests such as tensile tests at elevated or low temperatures and cyclic inelastic load tests where required.
• Test reporting requirements and an informative Annex A with options for contractual agreement between parties.

The document cross-references general metallic testing standards (e.g., tensile test methods and calibration standards) and delegates tests not covered here (e.g., bend test variants or mass-per-metre) to ISO 15630-1.

Practical applications and who uses this standard

ISO 15630-2:2019 is used by:

• Manufacturers of welded fabric and lattice girders for routine quality control and R&D.
• Independent testing laboratories performing mechanical, chemical and geometrical verification.
• Specifiers and contractors writing product and procurement specifications for reinforced concrete projects.
• Structural and materials engineers assessing reinforcement performance and compliance.
• Certification bodies and regulators for conformity assessment and acceptance testing.

Typical applications include product acceptance testing, contract compliance checks, failure investigation, and comparative performance assessment of reinforcement mesh and lattice systems used in slabs, walls and precast elements.

Related standards

• ISO 15630-1 - Complementary test methods for reinforcing steels not covered here.
• ISO 16020 - Vocabulary for steel reinforcement and prestressing.
• Other referenced metallic testing standards (ISO 6892-1, ISO 7500-1, ISO 9513, ISO 4965 series) govern tensile testing and calibration practices.

Using ISO 15630-2:2019 helps ensure consistent, reproducible testing and clear contractual agreement on required tests for welded fabric and lattice girder reinforcement.