The instrument measures the roughness coefficient of a joint.
The unit is also designed to test the possible fluage tendency of bituminous mixtures covering a slope of a dam subject to high sun radiations.
The fluage tendency is the permanent viscous deformation of a material.
The apparatus consists of an inclined adjustable plane on which the sample is placed.
Inclination angle: 0 – 50° Max. sample diameter: 100 mm
The plane is slowly tilted until sliding of the upper surface of specimen on the lower one occurs. The roughness index can be evaluated from the measured inclination angle.
Dimensions: 270x175x265 mm.
Weight : 5 kg approx.