DEVICE FOR MEASURING STRENGTH OF ROAD TOPPINGS BY DYNAMIC LOADING METHOD Russian patent published in 2017 - IPC E01C23/07 

FIELD: measuring equipment.

SUBSTANCE: device is hinged, contains a loading mechanism consisting of a pneumatic cylinder (3), the upper cavity of which (4) is connected to a loading receiver (8), and the piston (5) acts as a drop weight. The damping element is a cylinder (19), a dynamic pulse effects the piston (21) of the cylinder on the loading device side. The lower cavity of the cylinder (23) by a pipeline (24) is connected to the receiver (25), the pressure in which can vary within wide limits. Between the damping element and the die, a load cell (30) is installed, which measures the forces acting on the die. The device allows, with small dimensions and low weight of the dropped weight, to significantly increase the dynamic effect on the die, within wide limits, to change the parameters of the dynamic pulse.

EFFECT: placement between the damping element and the die of the load cell, which fixes the dynamic pulse, made it possible to significantly improve the accuracy of the measurement.

2 cl, 1 dwg