Dynamic Cone Penetrometer (DCP) Testing

Dynamic Cone Penetrometer (DCP) Testing

As part of an investigation into pavement failure, or as part of planned maintenance/ improvement works, it is beneficial to obtain information into the strength/depths of unbound strata underlying bound materials.  A common method which provides such information with only minor intrusion is the dynamic cone penetrometer test.  The equipment, developed by the Transport Research Laboratory and often undertaken at the base of core holes or within trial pits, gives a rapid assessment of the structural properties of the material it penetrates,

A drop hammer is used to drive a cone into the material being tested, the number of blows being plotted against penetration to allow the calculation of the equivalent California Bearing Ratio (CBR) value over depth, the thickness of layers of material of similar CBR value being identified.

Dynamic Cone Penetrometer testing  is undertaken by Nicholls Colton Group’s fully equipped *UKAS accredited testing laboratory No. 0320 and *MCERTS accredited laboratory which can undertake a wide range of materials testing.