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Accelerated pavement testing (APT) refers to a specially designed loading mechanism that can provide simulated loads on an existing or specially built pavement section. The Pave®MLS Range of equipment is specifically designed to perform this function.

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Overview

Developed in 2004 the Full scale Mobile Loading Simulator (Pave®MLS) has many advantages with its speed, manoeuvrability and versatility. The trafficking is: uni-directional and simulates real truck loading to serve as a basis for theoretical modelling. The maximum load on each set of dual wheels on the MLS Full Scale machines is 7.5tons (75kN) at maximum speed of 6m/s (22kph), giving 6,000 axle loads applied per hour.

Lateral movement of the device for simulating wander can be applied. Pave®MLS is driven by contactless linear induction motors, LIMs, requiring no gearbox thus no wear or fatigue of the drive system.

Benefits

The full-scale Pave®MLS have attributes that make them excellent tools for APT application, putting them in a class of their own. This includes:

  • Speed of travel of the bogies
  • Number of load applications per day
  • Size of load
  • Mobility and Cost — which makes them ideal for field and fixed site laboratory applications both in research and for proof testing!
  • The MLS66 is designed for testing a longer trial section, therefore longer and larger than the MLS30
  • The MLS11 is a truly portable APT device, weighing on 700kg this device can easily be used in the laboratory or taken directly to the test site.

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