GSSI Scanning Kit

GSSI scanners can collect data up to 1m in concrete,

with reliable clarity of information. Also, with the Palm Scanner we are now able to access those tight spaces. We can report in full 3-D and have the ability to export to CAD.

As part of CSI’s GSSI suite, the BridgeScan system provides a non-destructive means to accurately assess the health of bridge decks and concrete structures. This may include elevated chloride content, concrete degradation and/or corrosion

The Palm Antenna offers users the ability to reach tightly spaced areas that were previously inaccessible such as corners, against walls and around obstructions

When would you use GSSI Scanning Kit?

One of the services possible with the GSSI kit is bridge scanning. BridgeScan is a complete, effective GPR system that is a comprehensive tool for quickly determining the condition (delamination, asphalt cover and reinforcement cover) of aging bridge decks, wharf decks, parking structures, balconies and other concrete structures.

The BridgeScan module has a process specifically for quality assurance (QA) studies on new concrete bridge decks.

What are the Benefits of GSSI Scanning Kit?

Traditional bridge deck inspection methods, like hammer soundings and chain dragging, rely on a person to interpret acoustical feedback to determine good and bad areas of concrete. In traditional methods assessment of ageing decks would require removal of asphalt overlays The application of BridgeScan provides an accurate condition assessment of a bridge deck as well as other reinforced concrete structures. The data is not just marked out onsite or roughly transposed onto a plan (as in acoustic methods), but is measured and able to be precisely identified in-perpetuity; based on co-ordinates.

The goal of this application in Quality Assurance on new decks is to ensure that there is adequate concrete cover over the top layer of reinforcing steel.


The use of the GSSI kit in QA of new bridge decks is not applicable to asphalt overlaid decks. There are general Ground Penetrating Radar Limitations on our Limitations page

Looking for a quote from our specialist team?

Get in touch today via our non-obligation estimate form below. We’ll be able to help you out with the information you need.

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Kurtis and his team showed highly skilled reading of scan results. These allowed them to be the only ones who successfully located the defects (random voids) in Polystyrene blocks filled with concrete and lined with Gib in a prepared area...

Maynard Marks

Engaging CSI to conduct the Pile Integrity Testing on the large 1.8m diameter piles was a wise choice. Their technicians were knowledgeable, approachable, punctual, health and safety conscious and flexible when we encountered late changes to the works programme. Results...

Fulton Hogan

As requested, the workers from CSI ltd contacted this office on arrival at the site and invited me (Kevin J Heays) to site visit and get an understanding of the intended works. I was impressed with the workers knowledge of...

Kevin Heays (ECANZ)

The CSI team were great and they did a good job for us. They were employed to complete QA on a Wellington Apartment Development using Pile Integrity Testing. We would recommend CSI to others in the future.

Richardson Drilling

CSI did a good job for us at an Auckland Apartment building; saving our team from drilling through services which would have caused considerable delays. We would recommend CSI to others for scanning

Allendale Electrical

CSI provided a great service. We could not advise them on areas of improvement as their service was highly professional.

Wilson Building

We found CSI via their website and were grateful that we had. Their service was highly professional.

Artisan Developments Ltd

CSI have completed several jobs for us. They are highly skilled operators.

Tracer Construction

CSI was recommended by a health board, and they did a great job for Q Interiors. We are already looking at employing them for future work.

Q Interiors

The service and follow-up of CSI Ltd was excellent. We would definitely use them again.

Grayburn Property Service

CSI Ltd did a great job for us. When we were asked what improvements could be made, we could think of no gaps in their professional service.

Trademark Building Services

CSI Ltd were recommended to us and did a great job. We would be happy to recommend them to others.

Stanley Construction

We were recommended CSI by an Engineer and he was absolutely correct; their GM particularly communicated well and was highly professional.

MSC Consulting Group

CSI has completed some exciting projects with Novare Design “I am very impressed at the responsiveness, relevance and accuracy of the testing and data supplied to Novare for some recent strengthening projects. We have worked with CSI on several projects...

Novare Design

Darren, Ali and the team at CSI have been a great help at the Oaks Shores refurbishment project. CSI was willing to work through the difficulties of travel under various Covid-19 levels, ensuring they could be of assistance in Queenstown...

Brosnan Construction