Transportation Engineering Lab Equipment

Axle weigh pads are high capacity weighing scales for weighing vehicles. Axle weigh pads are used to determine the individual axle weights and total gross weight of any type of vehicle. Axle weigh pads are typically used in pairs, with one pad for the left-hand wheels and one pad for the right.

Bump Integrator also known as Roughometer or Automatic Road Unevenness Recorder gives quantitative integrated evaluation of surface irregularities on an digital counter LCD screen. It comprises of a single wheeled trailer, with a pneumatic tyre mounted on a chassis, on which an integrating device is fitted.

The light weight deflectometer is a rapid test method for compaction quality of soils and unbound base courses in earthwork and road construction. The light weight deflectometer measures the soil dynamic LWD modulus which is empirically correlated to the soil degree of compaction.

Road surface roughness is an important measure of road condition. MERLIN (Machine for Evaluating Roughness using Low-cost Instrumen- tation). The device can be used either for direct measurement or for calibrating response-type instruments such as the vehicle- mounted bump integrator. It consists of a metal frame 1.8 m long with a wheel at the front, a foot at the rear.

Rolling Thin Film Oven (RTFO) Test measures the effect of heat and air on a moving film of hot mix asphalt binder, simulating short-term aging that occurs during production and paving operations. This is important for investigating and predicting early age HMA pavement behavior and distress.