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Concrete Scanning GPR in New Zealand

Ground Penetrating Radar (GPR) can be used for locating rebars, post-tensioning cables and conduits before cutting, drilling or coring, investigating unknown structures, determining concrete thickness, imaging rebar geometry and several other applications.

The evolution of imaging technology and innovations in the field of concrete scanning GPR enable us to resolve the trade off between resolution and penetration depth.

The Proceq GP8000 is a revolutionary GPR for concrete scanning which uses a Stepped Frequency Continuous Wave (SFCW) antenna. This enables the GPR to sweep a frequency range of 0.2 to 4.0 GHz. The result is high resolution GPR scans to a penetration depth of 700 mm.

This powerful and revolutionary concrete scanning Ground Penetrating Radar (GPR) will benefit the construction industry in New Zealand, especially in the field of testing and inspection. Meanwhile, it helps to promote safer construction work in New Zealand with the increased capability to detect non-metal and metal targets all the way to the bottom of thick concrete elements.

Case Study One

Here is an example of a concrete GPR scan at a parking garage.

  • Line Scan Data - Raw

    Line Scan Data - Raw

    The Proceq GP8000 GPR managed to locate 3 layers of reinforcing rebars and still see the backwall clearly at around 540 mm deep. The high-resolution image produced and migrated “Heatmap” view help engineers and technicians to interpret the Ground Penetrating Radar (GPR) data and identify targets easily.
  • Line Scan Data - Migrated Heat Map

    Line Scan Data - Migrated Heat Map

    The Proceq GP8000 GPR managed to locate 3 layers of reinforcing rebars and still see the backwall clearly at around 540 mm deep. The high-resolution image produced and migrated “Heatmap” view help engineers and technicians to interpret the Ground Penetrating Radar (GPR) data and identify targets easily.

Case Study Two

Another great example of concrete GPR scan on concrete slab.NZ GPR rebars pipeline

The top layer rebars on Ground Penetrating Radar (GPR) scan shows perfectly defined hyperbola. While, managed to pick up some non-metallic pipes further down the slab.

NZ GPR AR viewAdditionally, the 3D imaging scan with Augmented Reality included in the Proceq GP8000 further assist engineers and technicians to visualise the rebar configuration in the slab.

It helps to locate and mark the right spot or area before drilling or cutting. Of course, minimise unwanted damage and cost of repair for both contractor and asset owner.

Besides, the Logbook function in Proceq GP8000 enables user to take photos and input comments or notes while performing GPR scan at the job site. This significantly reduces post processing work for the user, while increases productivity that allows user to process data collected instantly on the iPad.

Traceability of GPR scan or measurement is second to none, where users and other stakeholders can review data collected through instant data sharing and exporting.

 

 

 

 

VIC:

Stuart McCurdy

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M: 0428 315 502

 

Monica Simhadri

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M: 0488 331 244

QLD:

Michael Dubery

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T: (07) 3040 6166

M: 0419 477 715

NZ:

Jun Han Lee

T: +64 9 377 6778

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M: +64 274 738 758

WA:

(Head Office)

T: (08) 9322 4020

Derek Burns

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M: 0498 800 373

Reuben Barnes

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M: 0408 034 668

NSW:

T: (02) 9453 9999

William Ward - NDT / Instruments

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M: 0418 381 709

Jeshwin Mohan - Lab / GPR 

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M: 0487 043 466

Warehouse / Service Centre

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T: (02) 9453 9941

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