Description
Gyratory Compactor
The CRT-WTEN1 and CRT-WTEN2 are supplied with a UKAS certificate of accreditation validating conformance to EN 13108
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 data is shown on-screen in a graphical and tabular format as compaction progresses and it is also saved as a 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.
Standards
- EN 12697 – 31
- ASTM D6925
- AASHTO T312
- TEX 241-F
Key Features
- High precision rigid frame
- Manual angle adjustment
- Transparent door with safety interlock
- Automatic mould lifting
- Integrated specimen extruder
- Temperature measurement
- Automatic mould insertion and retraction on side table which allows cooling time before extraction without loss of compaction time (especially important for rubberized asphalt)
- 150mm and 100mm internal Ø moulds can be tested without changing parts
- Cold mix (emulsion) materials can be compacted and the expelled fluid collected
- Ethernet connection for data acquisition and control system
- User friendly LabVIEW™ software displays results in real time
- Traceable calibration
- Remote support service available
- Proudly made in Britain
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
Software
- User friendly, intuitive and reliable Windows™ software developed using LabVIEW™
- Software allows 3 methods of compaction – no. of gyrations, height and target density
- The operator is guided through every step of the compaction
- Real-time display and report of current height, density and void content (percentage)
- Data is recorded to disk at regular intervals for further analysis
- Utilities are included for transducer check, diagnostic routines and calibration
Accessories
Accessories are not included in the price of main device (unless stated otherwise) and may be purchased separately if required.
