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TRL Dynamic cone penetrometer

ASTM D6951
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General description
General description
This apparatus, originally developed by the TRL-UK Transport Research Laboratory, has been designed  under licence from TRL for the rapid in-situ measurement of the structural properties of existing road pavements constructed with unbound materials. Continuous measurements can be made down to a depth of approximately 850 mm or, when extension shafts are used, to a recommended maximum depth of 2 m. Where pavements layers have different strengths the boundaries can be identified and the thickness of the layers determined. Correlation’s have been established in earlier work (Van Vuuren, Klein and Van Herden, Smith and Pratt) between  the TRL penetrometer and CBR (California Bearing Ratio) so that results can be interpreted and compared with CBR specifications.
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Technical specifications

The 16-T0012/A penetrometer  includes:
  • 8 kg weight dropping mass trough a height of 575 mm
  • Anvil with driving rod
  • Penetration rod with 60°, 20 mm dia. cone
  • Spanners, Tommy bar, bottle of adhesive
All contained in a carrying case.
  • Case dimensions:  1200x350x200 mm approx.
  • Weight approx.: 30 kg

Ordering info

16-T0012/A 
TRL Dynamic cone penetrometer

Accessories

Accessories and Spares

16-T0012/1 
Spare 60° cone

16-T0012/2 
Upper extension shaft

16-T0012/3 
Lower extension shaft

16-T0012/4 
Extension rod 400 mm

16-T0012/5 
Spare anvil coupling

16-T0012/6 
Handle guard

16-T0012/7 
Handle

16-T0012/8 
Hammer shaft

16-T0012/9 
Standard shaft

16-T0012/10
4.6 Kg dropping weight


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