Overview
EN ISO 15630-2:2019 - "Steel for the reinforcement and prestressing of concrete - Test methods - Part 2: Welded fabric and lattice girders" (ISO 15630-2:2019) is a CEN-adopted ISO standard that defines test and measurement methods applicable to welded fabric (also called welded wire reinforcement in some countries) and lattice girders used for concrete reinforcement. The document specifies chemical and mechanical test methods and procedures for measuring geometrical characteristics of these products. Sampling conditions are not covered by this part; product standards deal with sampling. For tests not included here (e.g., bend tests, rib/indentation geometry, mass per metre) ISO 15630-1 applies.
Key topics and technical requirements
This part of ISO 15630 focuses on practical test methods and reporting requirements rather than design criteria. Major technical areas include:
- Tensile test procedures for welds and wire elements, including test-piece preparation and test equipment requirements.
- Bend test on welded intersections to assess local ductility and weld behavior.
- Shear test methods to determine weld shear force for welded fabric and shear performance of lattice girder joints (including clamped joints).
- Axial force fatigue test for welded fabric to evaluate fatigue resistance under cyclic axial loading.
- Chemical analysis procedures for verifying steel composition when required.
- Measurement of geometrical characteristics (wire spacing, diameter, weld positions, lattice girder dimensions) with guidance on test pieces and measuring equipment.
- Specialized tests such as tensile tests at elevated or low temperatures and cyclic inelastic load tests.
- Test reporting content and format to ensure traceability and consistent documentation.
- Annex A (informative) provides a list of options for agreement between parties (manufacturer, purchaser, testing body).
The standard specifies test-piece definitions, equipment, procedures, interpretation of results, and test-report requirements but does not prescribe sampling rules.
Practical applications
EN ISO 15630-2:2019 is used to:
- Verify the mechanical integrity and weld quality of welded fabric and lattice girders supplied for reinforced and prestressed concrete.
- Support quality control in manufacturing plants producing welded mats and prefabricated lattice reinforcement.
- Provide acceptance and inspection criteria for purchasers, contractors, testing laboratories, and certification bodies.
- Inform product standards, construction specifications, and procurement contracts where explicit test methods are required.
Who uses this standard
- Steel and reinforcement manufacturers
- Testing and inspection laboratories
- Structural and civil engineers specifying reinforcement quality
- Contractors and procurement officers responsible for material acceptance
- Certification and conformity assessment bodies
Related standards
- ISO 15630-1 - for additional test methods (e.g., bend tests, rib geometry) not covered in Part 2.
- Relevant product standards and national sampling standards govern sampling and product-specific requirements.
For full procedural details, calibration criteria, and test parameters, obtain the official EN ISO 15630-2:2019 text from CEN or ISO.