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Zinc and Zinc Alloy Coated Prestressed Strands.

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Evaluating Mechanical Strength and Durability of Zinc-Based Coated Pre-Stressing Strands

Zinc and Zinc Alloy Coated Prestressed Strands is carried out to evaluate the tensile strength, proof load, elongation, relaxation behaviour, and coating performance of zinc-coated and zinc-alloy-coated pre-stressing steel. These coatings provide enhanced corrosion protection, particularly in aggressive, coastal, and industrial environments, while mechanical testing ensures that coating application does not compromise structural performance.

Why Zinc & Alloy Coated StrandMatters.

Verifies Tensile Strength and Proof Load Capacity

Mechanical testing confirms that coated pre-stressing strands meet required ultimate strength and proof load criteria essential for safe pre-stressing operations.

Ensures Coating Integrity During Stressing

Testing evaluates whether the zinc or zinc-alloy coating remains intact during elongation and loading, preventing cracking, flaking, or coating damage that could reduce corrosion protection.

Assesses Elongation and Relaxation Characteristics

Evaluation of elongation and relaxation behaviour helps engineers account for long-term stress losses, ensuring consistent structural performance throughout the service life.

Supports Compliance With Standards and Project Specifications

Mechanical testing verifies conformity with IS standards and relevant international specifications, enabling approval for critical infrastructure and durability-focused projects.

NDT TESTING

GL Advantages.

Accredited Facility: NABL-accredited laboratory with traceable calibration and stringent Quality System procedures.

Compliance with Standards: Tests conducted in accordance with relevant IS/ASTM/RILEM/EN standards.

Experienced Personnel: Technologists and experts who interpret results and recommend mitigation strategies.

Rapid and Reliable Reporting: Valid reports that comply with relevant standards.

Testing Capabilities: Lab and on-site testing, along with post-test consulting services.

Global Lab Advantage.

Accredited facility.
Standards compliance.
Experienced analysts.
Fast, reliable reporting.
Field + Lab capability.

Applications

  • Pre-stressed concrete bridges and flyovers
  • Coastal and marine infrastructure projects
  • Industrial structures in corrosive environments
  • Quality control of galvanized and alloy-coated strands
  • Research, development, and durability performance studies
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Zinc and Zinc Alloy Coated Prestressed Strands

Zinc and Zinc Alloy Coated Pre-Stressed Strands

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On-Site Testing Across India

Global Lab provides comprehensive testing for construction and engineering materials, including concrete, cement, steel, aggregates, bitumen, soil, tiles, paver blocks, and other civil and infrastructure materials. We also handle customized tests as per client or project specifications.

Yes. Our team is equipped with mobile testing facilities and field instruments for on-site sampling, inspection, and testing — ensuring quick and reliable results without disrupting your project timelines.