Elastic Modulus (EV2)

Overview

The EV2 modulus is derived from the second loading cycle of a plate load test and is widely used to check the stiffness and compaction of subgrade and embankment layers against specified minimum values.

The plate-load modulus EV2 comes from the second loading cycle of a plate test on a subgrade or embankment layer. It measures stiffness, and together with the first-cycle value it indicates how well the layer has been compacted, before the next layer is placed on top.

• Second-cycle plate load modulus
• Stiffness and compaction verification
• Used for subgrade and embankment layers
• Field test with immediate results

Key Benefits

Where It Is Used

• Highway and rural road subgrades
• Railway formations
• Embankments and fill layers
• Airfield and industrial yard pavements

How We Work

1. 1

   Prepare the test spot

   Level a small area of the compacted layer.

2. 2

   Place the plate and jack

   Set the plate against a reaction vehicle with a hydraulic jack.

3. 3

   Load, unload and reload

   Two cycles, recording settlement at each stage.

4. 4

   Calculate the modulus

   Determine EV1 and EV2 and the ratio between them.

What You Receive

• Load-settlement curves
• EV1, EV2 and EV2/EV1 values
• Test location log
• Summary report

Frequently Asked Questions