GPR Survey
Reducing building investigational damage
Merely owning a GPR 'Ground Penetrating Radar' unit is not enough; it is vital that the engineers on site have the GPR survey training required to read the data and interpret all the information available; digital and visual plus experience to provide definitive answers for the client.
GPR Survey applications
NB. Not all GPR devices are created equal, one single device will not necessarily work in all instances.
- Post Tensioned Special Inspections (PTSI)
- Concrete Condition Surveys
- High Alumina Cement (HAC) Investigations
- Ascertain 'as built' Details
- Alkali Silica Reaction Investigations
- Services Location
- Subsoil Investigation of Drainage / Basements
- Detection of Reinforcement / Steel Section
- Void Detection
- Debondment of Screeds / Slabs
- Thickness Detection of Walls / Slabs
Innovation - Distilled GPR Survey
We were asked to determine how much whisky was left in the barrels at a distillery. This is known as 'The Angels Share', which is the loss of alcohol from evaporation during the ageing process. Depending on where and how long a whisky is aged will determine how much volume is lost
These barrels could not be opened or subjected to too much movement, therefore we carried out a GPR survey various GPR units to ascertain the fluid levels.
You can see on the video below this innovative approach worked well, we repeated this process for all barrels with Ground Penetrating Radar Surveys from Proceq & GSSI.
Showtime: Capturing the Angels' Share
Shell UK GPR Survey
HTA became involved in discussion with Shell UK regarding a potential problem they had at a petrochemical plant at St Fergus Gas Plant, Aberdeenshire.
After trials of the Ground Penetrating Radar system on site, HTA was awarded a large scale investigation. We were asked to detect voids beneath a very significant slab prior to the transportation of a 75 tonne crane onto the site, which could have toppled over had the slab failed due to voidage.
Since then, other oil companies have asked HTA to carry out similar trials to determine the successfulness of the system and further commissions were carried out.
Showtime: GPR on site
In this video you can see our engineer scanning for rebar and marking their position with chalk.
Scanning online for GPR Experts?
Take advantage of our Open Door Policy. Even if you do not end up using HTA we are happy to advise on the best course of action for the outcome you wish to achieve.
It is impossible for one company to carry out every project, however we can share our expertise far and wide.
Call: 0800 680 0482 or Email: testing@hendersonthomas.co.uk

Buildings
Buildings
Buildings
Buildings