With older buildings, repair and restoration are often carried out as an ongoing maintenance programme, or as a major restoration project when the building reaches a state of decay and it is decided to restore it to its former glory. The type of … [Read more...] about Restoration of Buildings – how GPR can help
GPR News
GPR finite difference time domain modelling
Sandberg are pleased to announce that an article titled: “Finite difference time domain modelling as support to ground penetrating radar surveys of precast concrete units”, written by Davide Campo (Manager of our GPR Department) for the Near Surface … [Read more...] about GPR finite difference time domain modelling
Verification of construction detail
It is often necessary to verify construction detail of structures. This could be to ensure compliance with current legislation and standards, proposed modifications or change of use, or simply part of a maintenance regime. The following are all … [Read more...] about Verification of construction detail
Ensuring a successful GPR survey
It concerns me that there is so much confusion and misinformation about GPR. Some equipment manufacturers would have you believe that GPR is straightforward. All you need is to buy their latest GPR system (usually an all in one system with fancy … [Read more...] about Ensuring a successful GPR survey
Chimney flue surveys – looking back
Sandberg was one of the first to start using Ground Penetrating Radar (GPR) for chimney flue location. I would go as far as to say that Sandberg is probably responsible for popularising the method as a non-destructive means of chimney flue … [Read more...] about Chimney flue surveys – looking back
Pile cap location survey
The purpose of the survey was to determine the general slab construction details of a warehouse floor slab. In particular, confirmation was required if pile caps or ground beams were present. Method GPR was used for the survey. The area was … [Read more...] about Pile cap location survey
Why you should locate reinforcing steel
Don't take chances. Locate reinforcing steel in concrete before you find it with your drill bit, core barrel or saw! You should always check any concrete for reinforcing steel and other embedded objects before cutting, drilling, sawing or other … [Read more...] about Why you should locate reinforcing steel
Embedded steel in historic buildings
Embedded steel has been used for strengthening structures for hundreds of years. In historic and heritage buildings, embedded steel is particularly common, most often in the form of a structural frame (I beams and columns) or to secure masonry … [Read more...] about Embedded steel in historic buildings