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.

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:

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