Providing world-class asset data to the Highways and Construction sector

We are currently providing our world-class asset data to a significant client in the Highways and Construction sector. The data we are providing supports our client’s ongoing Annual Asset Management Plan.

Collecting reliable and quantitative data of bridge decks allows for areas of deterioration to be highlighted. Our Ultra Wide Band Ground Penetrating Radar (GPR) survey allows for non-destructive analysis of structural and buried features and is invaluable in evaluating evaluating pavement thickness, damage identification and cover to top layer of reinforcement.

For this project we used a combination of our vehicle-mounted GPR system and our push GPR system to capture the data required. This is a stepped frequency, continuous wave antenna providing high-accuracy, high resolution and high definition of subsurface data.

During layer analysis, GPR data was calibrated to an average of several core results in each location.

Phase 1 of the project was completed by Catsurveys earlier this year, which consisted of surveying 32 bridge joints - 16 bridge structures with 2 joints on each bridge - for the purpose of identifying the bridge layer makeup and areas of inefficient waterproofing. This data allows the client to determine if/when structures need to be maintained.

We are now working on Phase 2 of the project which is an additional 20 bridge joints - 10 bridge structures – as part of the client’s ongoing Annual Asset Management Plan.

Survey requirements

• Identify the bridge layer makeup and areas of inefficient waterproofing as part of the client’s Annual Asset Management Plan

Equipment used:

• Ultra Wide-Band GPR