Pavement Evaluation

• An Indigenous device developed by CRRI
• It comprises of a standard pneumatic wheel mounted within a rectangular frame with single leaf spring on either side.
• Spring dashpots mounted on the leaf spring provide damping for the suspension
• Integrating unit, mounted on one side of the frame integrates the unevenness in cm.

• It is a Vehicle Mounted Bump Integrator System
• This Vehicle Mounted Bump Integrator consists of an integrating unit which is mounted in the dicky on the rear axle of a car/jeep
• Integrating unit, mounted on the dicky integrates the unevenness in cm or pulses
• For the measurement vehicle is run at a constant speed of 32 kmph
• Bumps in cm or pulses and corresponding road length in meters are recorded on a computer based data acquisition system

This is a dynamic pendulum impact type tester used to measure the energy loss when a rubber slider edge is propelled over a test surface. The tester is suited for laboratory as well as field tests on flat surfaces and for polish value measurements on curved laboratory specimens from the accelerated wheel tests. (ASTM – E 303 – 1978).

• A technology for weighing heavy vehicles without requiring them to stop at weigh stations.
• It represents more accurately what a pavement is subjected to than a static weight.
• Designed to capture and record individual axle weights and gross vehicle weights of all trucks as they drive over a sensor.
• It measures related dynamic tyre forces of a moving vehicle at specified location with respect to time

Instrument Detail

Make               : KUAB KONSULT & UTVECKLING AB, SWEDEN
Model              : HWD 30 KN to 240 KN
Specification :

Instrument Detail

Make               : ARRB Group Limited, AUSTRALIA
Model              : HAWKEYE 2000
Specification :

Instrument Detail

Make        : IPC Global, Australia
Model       : AASHTO:TP 79-2009

Instrument Detail

Make        : IPC Global, Australia
Model       :

Instrument Detail

Make               : Infratest, Germany
Model              : EN 12697-33