LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN)

Configured for ISO 15630-3 workflows

LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN) is a steel strand testing machine and anchorage static load system for ISO 15630-3 workflows.

Capacity

300 kN

Long-duration tensile load

Duration

≥1000 h

Relaxation cycle

Travel

0–120 mm

Screw mechanism

Gauge Length

≥60d

d = nominal strand diameter

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LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN) ISO 15630-3

Long-Duration Isothermal Testing

The control and acquisition workflow is configured for relaxation cycles lasting 1000 hours or more.

Complete Relaxation Record

Force, temperature, strain, gauge length, and the calculated curve are stored for analysis and reporting.

Prestressing Steel Coverage

Fixtures can be configured for wire, strand, and prestressing steel bar specimens.

Project-Configured Extensometry

Gauge length and strain measurement are confirmed against the selected specimen and method at quotation.

Standards

Standard

ISO 15630-3

Application & Search Guide

Testing Method

Steel strand and anchorage testing systems

LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN) is prestressing and anchorage testing equipment for steel strand tensile testing, anchorage static load verification, stress relaxation, and prestressed component evaluation under ISO 15630-3. It supports laboratories testing tendons, anchor assemblies, and strand systems where load stability and grip alignment matter.

Technical FAQ

What is LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN) used for?

LS-REL-300 Prestressing Steel Stress Relaxation Tester (300 kN) is used for prestressing and anchorage testing workflows in civil engineering materials laboratories, quality control labs, research programs, and construction material acceptance testing.

Which standards does LS-REL-300 support?

LS-REL-300 supports ISO 15630-3. Lithostek can also configure reporting fields, accessories, and calibration documents around local project or laboratory requirements.

Can Lithostek configure LS-REL-300 for my laboratory?

Yes. Lithostek application engineers can review specimen format, target standards, throughput, power supply, data output, and training requirements before quoting a suitable configuration.