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GYRATORY ASPHALT COMPACTOR (LBM570)

GYRATORY ASPHALT COMPACTOR (LBM570)

SKU LBM570 Category

to EN12697-10, EN12697-31, ASTM D6925, SHRP M-002, AASHTO T312

Code LBM570
Other Standards EN12697-31/10
Weight (kg) 250
  •  Gyratory compaction is considered to be one of the best methods of laboratory compaction for the assessment of compactibility and the manufacture of test specimens.
  • Compaction is achieved by the application of a vertical stress (normally 600kPa) via end platens to a known mass of asphaltic mixture within a 100 or 150mm internal Ø mould.
  • The longitudinal axis of the mould is rotated (gyrated) at a fixed angle to the vertical whilst the platens are kept parallel and horizontal.
  • During compaction the height of the sample is automatically measured and both the mixture density and void content calculated.
  • The compaction progresses and it is also saved in Microsoft Excel™ compatible format.
  • The operator can choose whether to compact for a certain number of gyrations or until a target mixture density or void content is achieved.
  • 100 and 150mm Ø moulds can be tested without changing machine parts.
  • No lifting of filled moulds is required.
  • They are automatically lowered into position for compaction and then lifted up again for transfer to the integrated demoulding system.

Key Uses:

  • Compaction of asphaltic paving material to a target mixture density or void content
  • Assessment of mixture compactibility
  • SHRP Superpave asphalt mixture design
  • Preparation of cylindrical test specimens

Key Features:

  • Set up to comply with EN 12697-10 and EN 12697-31
  • Can be configured to comply with SHRP Superpave, ASTM, AASHTO specifications
  • Automatic mould insertion and retraction
  • 150mm and 100mm internal Ø moulds can be tested without changing parts
  • Cold mix (emulsion) materials can be compacted and the expelled fluid collected
  • USB link with data acquisition and control system so that desktop can be used as host computer
  • User friendly LabVIEW™ software displays results in real time
  • Compaction data stored in Microsoft Excel™ compactible format
  • Machine calibrated with traceable equipment
  • Option for mould up to 300mm high

Software:

  • User friendly, intuitive and reliable Windows­™ software developed using LabVIEW™
  • Software allows 2 methods of compaction – no. of gyrations and target density
  • The operator is guided through every step of the compaction
  • Real-time display of current height, density and void content (percentage)
  • Data is recorded to disk at regular intervals for further analysis
  • Software communicates with the gyratory compactor via USB interface
  • Utilities are included for transducer check, diagnostic routines and calibration

System elements:

The LBM570 Gyratory Compactor is comprised of:

  • A highly rigid enclosed steel frame
  • A 95mm bore pneumatic cylinder
  • An integrated guard and specimen table
  • A precision pressure regulator for accurate stress control
  • An eccentric at the base of the mould to produce gyratory motion
  • Mitsubishi™ inverter for accurate speed control
  • 300mm stroke linear potentiometer for specimen height measurement
  • Footmaster™ wheels for uncomplicated movement
  • A PC is connected to the BM570 through a high-speed USB connection
  • A highly accurate National Instruments™ 16bit card is used for control and data acquisition

Specification:

Speed Normally 30rpm
Stress Normally 600kPa, Maximum 1000kPa
Actuator 250mm
Internal Angle of Gyration 0.2 to 1.2º
Electrical Supply 220-240 Volts 50Hz @16A (others available)
Specimen Ø 100mm and 150mm
Compressed Air 7-10bar @ 350L/min
Mixtures Wet or dry
Dimension mm (W x D x H) 780x1000x1920
Working Space Required mm (W x D x H) 2000x2000x2200
Estimated Weight 250kg
PC Required, see LBM577

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.