Concrete Structure Investigations COVID-19 advice for clients


Hello valued clients and contacts,

Concrete Structure Investigation’s response to the Covid-19 Level 3 alert, with the upgrade to Level 4 Wednesday midnight:

CSI can continue to work remotely on your queries for pricing and completing reports where data has already been collected., as our team can work remotely on these and share electronically for peer review.

CSI can go to site where the work is for Essential Services, but we will not be able to attend non-essential site work until the current Level is downgraded.

As with the rest of the country, we are very sorry not to be able to progress your business requirements beyond the points above. We wish you all to be safe and let’s hope we can beat the spread of the virus and be back to work as soon as possible.

If you are contacting us about some pricing here are some really good tips so that we can get it right for you:

To assist CSI’s representatives with ensuring that we can provide you with the most cost effective, accurate and timely pricing and service we request you please share with us any information that you may have about the structure or building you are enquiring about. Sending us all drawings, photos and any other relevant information will ultimately benefit your project and allow us to be more informed. Please see below for a list of required information.

If you have any of the below information please share it with us

  • As built plans (Structural and architectural)
  • Scoping Documents
  • Photos
  • Hazzard registers and health and safety plans
  • Asbestos registers

If you have information and are unsure that it is useful please do send it to us regardless, to be able to provide our best service we require to be informed.

Please contact Kurtis 0800 33 77 67 if you have any questions.

Best regards, The Team at CSI


1. What is Scanning?

Scanning is a non-destructive testing method used by CSI primarily to determine the details of steel reinforcement within concrete structures. CSI use two scanners:

  1. Ground Penetrating Radar (GPR)
    The GPR scanner emits electromagnetic waves into a structure’s subsurface. Changes in the material’s properties, e.g. a change from concrete to steel, cause the waves to reflect. The signals produced by reflected waves allow us to determine details within the structure, such as centre spacing, cover, orientation and general layout of the reinforcement.
  2. Ferroscan
    The ferroscanner emits a magnetic field into the subsurface. Asymmetric changes in the field allow us to identify the cover and diameter of reinforcement.

2. When would you use Scanning?

Scanning can be used to determine the size and layout of steel reinforcement within concrete elements, e.g. beams, columns etc., to help determine their structural capacity – so decisions can be made without invasive investigation

3. What are the Benefits of Scanning?

  • As mentioned above, scanning is non-destructive
  • The scanners are portable, so testing can be carried out in remote areas
  • GPR and ferroscan are complementary – both technologies can be used in
    conjunction for even better results

Sound relevant to you?

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