Concrete Structure Investigations COVID-19 advice for clients

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Covid-19 Alert Level 2

Update for Thursday 14/05/20 onwards

 We hope you are all staying safe and feeling happy !  Concrete Structure Investigations Ltd (CSI) can continue to attend sites and projects under Level 2; we will endeavour to stay at 1m distance from people who are not in our ‘work bubble’.  In most cases our work is isolated, so this should largely not be a problem.  CSI are very keen to complete those projects you have, that have been on hold!

CSI have established a Health and Safety Procedure while working under Covid-19 conditions. Our procedures are established with utilization of guidelines from the various government organizations providing systems and procedures for such work. Our procedures will develop in line with any more guidelines provided. Our procedures are to be agreed and reviewed by authorised representatives of the sites we attend. We require all our clients to have some established procedure as well. Our reporting and pricing staff continue working to keep up timely reporting procedures and getting those prices out. We will just need access to site to collect data and carry out services physically.

Best regards and be safe.  The CSI Team

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

o   As built plans (Structural and architectural)

o   Scoping Documents

o   Photos

o   Hazard registers and health and safety plans

o   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

Crack Detection (in concrete)

Science Direct talks about the two main methods for Crack Detection more or less in this way:  Cracks on the […]

Science Direct talks about the two main methods for Crack Detection more or less in this way:  Cracks on the concrete surface are one of the most identifiable indications of degradation of the structure.  Following up these ‘markers’ is critical for the maintenance (of the structure), continuous exposure can lead to severe damage to the structure and the environment. Manual inspection is a common method for crack inspection.

Using manual inspection, the sketch of the crack is prepared manually, and the conditions of the irregularities are noted. Since the manual approach completely depends on the specialist’s knowledge and experience, it lacks objectivity in quantitative analysis. So, automatic image-based crack detection is proposed as a replacement. The following presents different techniques to automatically identify the crack and its depth using image processing techniques.

As you can see from the image above, manual crack measurement cannot provide great detail.   In recent times CSI has been asked to price crack monitoring for bridges in particular.   By far the most reliable and informative test method is dynamic digital measurement.  Slight fluctuations with load bearing over a bridge can be recorded.  This gives much more detailed information about what the structure is handling and how the load is impacting upon it.

There is also a much higher chance in manual measurement that the crack monitors will be interfered with in some way. Often manual crack monitoring systems need to be placed in out of the way places, which means the need to get access for each inspection adds expense and inconvenience to the monitoring process.

With digital monitors, it is possible to affix them at the beginning of the process, and not have to visit the site repeatedly to take measurements.  This is particularly useful for ‘out of the way’ locations.

Needless to say, CSI offers many different services to help with testing the integrity of your structures – for a conversation about crack detection or any other NDT requirements feel free to drop us a line here.

Phone: 0800 33 77 67 or email: info@csiscan.nz

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