Used to simulate and reproduce the real compaction conditions under actual road paving operations, hence determining the compaction properties of the asphalt.
Such compaction is achieved in a fully automatic way, by combining the rotary action and the vertical resultant force applied by a mechanical head. The Compactor comprises a highly rigid steel frame ensuring excellent angle control.
Load is applied by an electro-pneumatic cylinder, servo-controlled by a precision pressure regulator; the height is measured by a linear transducer. Gyratory motion is generated by an eccentric high precision system allowing an easy set up with precision and constant angle of gyration.
The rotation speed is controlled by an inverter through on board computer control.
Using the proper perforated mould, the Compactor is able to run tests also on cold emulsified asphalt mix.
The acquired results are also employed in the investigation of volumetric and mechanical characteristics of the asphalt mix.
The touch-screen icon interface allows an easy set up of the parameters and an immediate automatic execution of the test, data acquisition andprocessing, graphics and file. A remote test control is available trough a dedicated software, provided in bundle.
ASTM D6925 • EN 12697-10 • EN 12697-31 • AASHTO T312
TECHNICAL SPECIFICATIONS
Compacted specimen size: dia 100 and 150 mm; height from 0 to 200 mm for both sizes.
Mould dimensions: Internal dia100 and 150 mm; height 250 mm for both moulds.
Gyratory angle: adjustable from 0 to 2,4°
Number of cycles (gyratory): adjustable from 1 to 5000
Gyration rate: adjustable from 5 to 60 work cycles/min (30 cycles/min requested by Standards)
Vertical load on 150mm dia specimen: adjustable from 10 to 900 kPa (900 kPa with 9 bar compressor), (800 kPa with 8 bar compressor), (700 kPa with 7 bar compressor)
Vertical load on 100 mm dia specimen: adjustable from 23 to 1500 kPa (with 7 bar compressor)
The vertical load on the specimen is automatically controlled and adjusted by the electronic system.
