to EN12697-10, EN12697-31, ASTM D6925, SHRP M-002, AASHTO T312
- 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.
- 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
- 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
- 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
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
|Stress||Normally 600kPa, Maximum 1000kPa|
|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|
|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.