Specification:
• A simple and robust instrument for rapid in-situ measurement of the structural properties of road pavements
• Provides fast and efficient method of obtaining information
• For continuous measurements up to a depth of 800 mm and 1,200 mm with the extension rod.
• Portable and can be accommodated in a carrying case
A typical test takes only a few minutes and the instrument therefore,
provides a very efficient method of obtaining information which would
normally require test-pits. Correlations have been established between
measurements with DCP and California Bearing Ration (CBR) so that the
results can be interpreted and compared with CBR specifications for
pavement design. Agreement is generally good over most of the range but
differences are apparent at low values of CBR, especially for fine
grained materials. It incorporates a 8 Kg weight dropping through a
height of 575 mm and a 60 deg. cone having a diameter of 20 mm. It is
supplied complete with assembly tools and weighs 20 Kg approx.
The DCP needs three operators, one to hold the instrument, other to
raise and drop the weight and a technician to record the results. The
instrument is held vertically and the weight carefully raised to the
handle limit and then allowed to fall onto the anvil.
The equipment consist of the following replaceable parts
Top and Bottom Rod
Handle
Hammer
1m Scale
60 deg. Cone
Anvil
