Dynamic Cone Penetrometer Kit - Dual-Mass Hammer

This dynamic cone penetrometer kit helps field technicians assess the relative resistance of shallow soil and pavement-support layers quickly and with minimal site preparation. Penetration is recorded as a weighted hammer drives a cone into the material, producing field measurements that can be used to evaluate changes in support conditions with depth. The portable kit format makes it practical for roadway investigations, construction quality checks and locations where bringing in larger equipment would be inconvenient. Dual-mass and single-mass configurations allow the test setup to be matched to the intended application, while estimated CBR correlations can provide useful screening information when their limitations are understood.

Key Features

• Supports rapid field assessment of soil and pavement-layer strength in accordance with ASTM D6951/D6951M when the prescribed hammer configuration and procedure are used.
• The portable, manually operated design makes it practical to investigate subgrades and base layers in locations that are difficult to reach with larger test equipment.
• Penetration readings provide a quick indication of changes in soil resistance with depth, helping technicians identify weak or inconsistent layers.
• The dual-mass option broadens the range of soil conditions that can be investigated without switching to an entirely different instrument.
• Results can be used to estimate in-situ CBR values, providing useful field information for pavement evaluation and construction quality assurance.
• A transport case and field accessories keep the testing components together and simplify movement between job sites.

Included Items

Kit contents vary by dual-mass or single-mass SKU; 

Lab Manager's Tip

Use the correct hammer mass and record penetration per blow consistently. ASTM D6951/D6951M specifies an 8kg mass with a 4.6kg option for soft conditions; estimated in-situ CBR is not interchangeable with laboratory soaked CBR.

Typical Applications

Pavement subgrade evaluation, field CBR estimation and soil strength investigations.