Wheel Tracker Large Device

Wheel tracking is used to assess the resistance to rutting of asphaltic materials under conditions which
simulate the effect of traffi c. In this machine, two 500 x 180mm specimens are tested simultaneously by
tracking with wheels fi tted with pneumatic tyres under specifi ed conditions of load, speed and temperature while the development of the rut profi le is monitored at specifi ed intervals during the test.The moulded specimens are inserted and removed from the wheel tracker using an Easy-load system.

A unique instrumented measurement device, linked to the data acquisition, is used to measure the
development of rutting during testing. The test procedure and conditions are controlled and data acquired using Windows™ software running on a host computer via a high speed digital interface and signal conditioning system.

KEY FEATURES
• Tests materials for roads with axle loads of at least 13 tonnes
• Unique rut profi le measurement device linked to data acquisition system
• Integral temperature controlled cabinet
• Test temperature range 40 to 60°C
• Tests for specifi ed number of cycles or to specified rut depth
• Double glazed doors for viewing test
• Easy-load system for specimen handling
• Conditioning of specimens at test temperature
• User friendly Windows™ software
• Automatic test start/stop
• Closed loop speed control
• Specimens can be compacted in the CRT-RCENLD-II and then wheel tracked without demoulding
• Supplied with certifi cation of a UKAS accredited calibration

KEY USES
• Determination of the rut resistance of asphaltic paving materials