Fast, Reliable On-Site Compaction Testing
The Clegg Hammer is a lightweight, portable instrument designed for quick and accurate compaction control on soil, subgrades, pavement layers, and clay-stabilized surfaces. Within seconds, it delivers quantifiable results—making it an essential tool for modern civil engineering and road construction.
Easy to Use – Instant Results
One operator can conduct 100+ tests per hour, with results displayed instantly on a connected tablet. Every impact generates a Clegg Impact Value (CIV), which correlates directly to CBR and stiffness performance.
Built for Field Work
- Compact (4.5 kg), ergonomic and robust
- Works in all field conditions
- Ideal for testing stabilized layers (e.g. with Claycrete II™)
Smart Technology
Each unit comes with a rugged Android tablet preloaded with the Clegg Control App.
- Automatic logging of test results
- Built-in GPS location tagging
- Secure, tamper-proof data
- Exportable reports in CSV format
Trusted & Proven
Used globally across 140+ countries, the Clegg Hammer meets ASTM D5874 standards and is a trusted control tool for:
- Road and airstrip construction
- Helipads and access tracks
- Claycrete II™ stabilization performance control
- Backfill and compaction quality assurance
What’s Included
- Clegg Hammer (standard 4.5 kg model)
- GPS-enabled tablet with app
- Charging kit + accessories
- Calibration disc + user manual
- Rugged transport case
Efficient Testing. Reliable Results
The Clegg Hammer helps verify surface performance and compaction strength in seconds—supporting sustainable roadbuilding with Claycrete II™. It’s an essential tool for contractors, engineers, and supervisors who demand quality, speed, and precision.
