HWD/FWD

India has the second largest road network across the world at 4.7 million km. This road network transports more than 60 per cent of all goods in the country and 85 per cent of India’s total passenger traffic. Management of such a large network is challenging and critical as it has severe economic impact. Hence routine structural evaluation of pavements is quite important. It enables key stake holders to develop accurate, realistic and economic pavement management & maintenance program. Nondestructive testing is now global norm for structural evaluation of pavements. HWD (Heavy Weight Deflectometer) is nondestructive testing device for the same purpose.

Translink Infrastructure Consultants Pvt. Ltd. is the first & only civil infrastructure consulting firm in India to have procured Heavy Weight Deflectometer in India. Our HWD has a loading range of 30-320kN, enabling it to simulate even the most extreme aircraft wheel load such as the Boeing 777, the Airbus 340 or 380 and at the same time it can simulate loading condition of routine commercial vehicle on Highways. Our HWD is highly versatile and can be used to test on both rigid, paver block and flexible pavements used on roads and airports. Our HWD meets all HWD standards worldwide including IRC 115-2014

Key Economic Benefits

  • Dynamic loading enables mechanistic-empirical analysis of the pavement layers and the determination of optimum rehabilitation strategies
  • Automated and rapid structural pavement testing
  • Determines the layer of failure, rather than determining simply the bearing capacity
  • QA/QC of newly built pavements

Key Engineering Benefits

  • Our HWD provides accurate, reproducible and repeatable data
  • The automated load or deflection sensing ensures consistent data
  • Automated and real-time monitoring of load cell, geophones and data variations ensures high quality of collected data
  • Uses mechanistic analysis allowing testing of most pavement structures
  • The HWD is used worldwide from the hottest and driest deserts, to the humid tropics and the cooler polar regions

Applications

  • Pavement rehabilitation and overlay
  • PCC joint sealing evaluation
  • Pavement management systems
  • Load transfer efficiency
  • Void detection
  • Spring load restrictions
  • Utility cuts
  • Experimental paving materials
  • Project acceptance and evaluation