LWDs

Zorn ZFG 2000A Light Weight Deflectometer for Asphalt Testing

Application

The Light Weight Deflectometer for Asphalt is designed to assess the stability of existing Asphalt layers.

The life time of Asphalt layers depends on environmental conditions. Sun radiation, frost and thaw periods together with the traffic load destroy the structure of Asphalt. The layer loses its mechanical properties like stiffness and elasticity. Cracks and holes appear and sections of Asphalt break out leaving the road impassable.

With the Asphalt Tester you are able to determine the hardness for broken and stable layers. This test quantifies the need for repair.

Function

The Light Weight Deflectometer for Asphalt works with a 15 kg drop weight on a 12 mm diameter very hard pin. It produces a small hole and the depth shows the hardness of the Asphalt. After 10 drops, the electronics calculate, according to an exponential function. The result is the deformation modulus in MN/m2. Temperature is a very important influence on Asphalt. It is measured with an IR — thermometer at the measuring point. The software calculates the deformation modulus to the standard temperature of 20°C.

Technical Data

• Drop weight - 15 kg
• Drop height - 70 cm
• Force - 10.6 kN
• Pulse Time - 17 ms
• Pin Diameter - 12 mm

To order:
Call 800-569-7303

Price: Due to Exchange Rate Please Call for Quote




F.O.B: Broadlands, VA This includes shipping/handling from Stendal, Germany to Broadlands, VA