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Ev₁ and Ev₂ Plate Load Test.

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Determining Deformation Modulus and Compaction Quality of Subgrade and Pavement Layers

Ev₁ and Ev₂ Plate Load Test is conducted to determine the deformation modulus of soil, granular layers, and pavement layers by measuring settlement under incremental loading. The test provides Ev₁ (initial loading modulus) and Ev₂ (reloading modulus) values, which are key indicators of load-bearing behavior, stiffness, and compaction effectiveness of the prepared surface.

Why Ev₁ & Ev₂ Matters.

Evaluates Deformation Characteristics Under Load

Ev₁ represents the deformation behaviour during initial loading, while Ev₂ reflects material stiffness after compaction, providing a realistic understanding of field performance.

Assesses Compaction Quality and Uniformity

The Ev₂ / Ev₁ ratio is a critical parameter used to verify whether the layer has been properly compacted and stabilized.

Supports Pavement and Earthwork Design Decisions

The test data helps engineers evaluate suitability of subgrade, sub-base, and base layers for pavement structures.

Ensures Compliance With Project and International Specifications

Ev₁ & Ev₂ testing supports compliance with DIN standards, IRC guidelines, and project-specific specifications, commonly required in modern road projects.

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

  • Quality control of subgrade, GSB, WMM, and base layers
  • Acceptance testing for highways, expressways, and urban roads
  • Verification of embankment and earthwork compaction
  • Pavement performance evaluation before layer progression
  • Infrastructure and transportation projects
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Ev₁ and Ev₂ Plate Load Test
Ev₁ and Ev₂ Plate Load Test

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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.