Roller compaction is the laboratory method that most closely simulates on-site compaction. The machine can be configured to operate with a single wheel or twin wheels depending on the mould size. The wheels track the surface in overlapping wheel-paths using sequences specified in EN 12697-33 or custom sequences designed by the user. The base of the mould is incrementally raised by a precision jacking system and the system is tracked to keep it level with the top of the mould. Compacted slabs can be from 50 to 150mm thick. 500 x 180mm slabs are usually wheel tracked in the Cooper Technology Large Wheel Tracker, whilst 600 x 400mm slabs are normally cut to produce trapezoidal or prismatic specimens for fatigue, modulus tests and Duriez test.

Key Features

  • Compacts uniform slabs of asphaltic paving mixture
  • Computer control for repeatable standard EN 12697-33 compaction patterns
  • Option for customer defined compaction patterns to be programmed and saved
  • Single or dual wheeled configuration
  • Mould size (length x width) 500 x 180mm or 600 x 400mm
  • Compacted slabs can be used in the large pneumatic tyred wheel tracker or cut into beams for bending tests
  • Safety enclosure with optical laser sensors for user safety, easy access and excellent manoeuvrability
  • Issued with UKAS certification of calibration

Key Uses

Preparation of homogeneous asphalt slabs:

  • Wheel tracking tests
  • Sawing into beams for bending tests
  • Coring to produce specimens for indirect tensile and axial tests

Contact Hylec Controls for a quotation today!

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