Detect the Rate of Corrosion in Reinforced Concrete Structures in Seconds

giatec icor corrosion device
giatec icor corrosion device

Corrosion is a natural process that begins when the steel rebar within reinforced concrete starts to rust. According to ACI, “corrosion occurs when the protective layer in concrete steel reinforcement is destroyed. Steel in concrete is usually protected against corrosion by the high pH of the surrounding portland-cement paste.” However, there are chemicals that can destroy the protective layer, making it susceptible to corrosion. Corrosion is very destructive for the lifespan and durability of your concrete structure, which is why it is crucial to regularly check for corrosion.

How are you currently monitoring corrosion in reinforced concrete? Does it involve drilling a hole in your structure, sticking a probe in, and using a logger to collect data that needs to be analyzed offsite? This process takes days, even weeks, just to measure concrete corrosion in ONE structure, and often you discover it’s too late to repair the damage. In addition to the time spent, destructive techniques can damage the overall structural integrity, especially if the concrete is not repaired properly. With our iCOR® device, you can detect damage early and predict the rate of future deterioration in seconds and with no destruction, using our patented CEPRA technology.

iCOR®: Non-destructive Concrete Corrosion Monitoring

rebar corrosionAs an NDT tool, the iCOR is an award-winning device that has been recognized for its positive impact in corrosion monitoring and mitigation. The device is unique in its ability to perform three-in-one concrete testing measurements of: rebar corrosion rate, half-cell potential, and in-situ electrical resistivity. These measurements are critical to the success of rehabilitation projects and to the repair of concrete structures. Measuring these properties, without the need to drill a hole to connect to the rebar, directly make iCOR the first of its kind.

The device can perform directional rebar corrosion measurements in both X and Y axis’ independently. Once you have set up your structure specifications in the app, preinstalled on the iCOR tablet, simply conduct a measurement on a specific location of the grid by moving the device on the concrete surface to the corresponding grid points on your tablet. The device then communicates these measurements to your app which processes the information and outputs concrete corrosion results in real-time. This data can be viewed as a corrosion rate map, in a PDF report, and CSV data file.

Understand the process of corrosion in reinforced concrete structures in this article.

The Science Behind iCOR®

The iCOR uses our patented Connectionless Electrical Pulse Response Analysis (CEPRA) technology to measure the electrical response of the rebar inside the concrete using four probes placed on the surface of the slab. This technique is based on the different voltage responses that the corroded and non-corroded rebar have at low frequency impendence.

The iCOR method consists of applying narrow DC/AC pulse currents through two outside electrodes and subsequently measuring the voltage between these points. The voltage response of a corroding rebar is different from that of a non-corroding rebar. This makes it possible to detect these areas of deterioration from the surface of the concrete. Further, by using the input current, the recorded voltage value, and a complex algorithm, the iCOR device can calculate the state of corrosion of steel reinforcements in concrete construction, allowing for the rate of deterioration of the rebar to be known.

Curious to learn more about our methodology? Check out the iCOR® resources section Here

The iCOR has proved to be robust on-site and I am confident in the results that I see. My favorite feature is that data on corrosion rate, concrete resistivity, and half-cell potential can be recorded simultaneously. This information is essential when interpreting the rate of corrosion deterioration.

– Dr. Jose Pacheo of CTL Group.

Why Choose iCOR® for Detecting Concrete Corrosion?

  1. Award-winning technology: This device was presented with the 2019 Corrosion Innovation of the Year Award by the National Association of Corrosion Engineers (NACE)
  2. No connection to the rebar required: Unlike other corrosion testing devices available, iCOR is a wireless NDT device that does not require a connection to the reinforcement, making it extremely convenient for monitoring the health of reinforced concrete structures.
  3. Comprehensive condition assessment of concrete: This device allows engineers to fully understand concrete quality and rebar corrosion activity, helping them make timely decisions regarding the rehabilitation and repair of their structures.
  4. No waiting periods between measurements: The iCOR does not polarize reinforcements when performing measurements. This means you can collect data over the same location without having to wait hours between readings, unlike other techniques.
  5. Fast and easy to use: Making the switch to iCOR is fast and easy. Minimal training is required.
  6. User-friendly app: The iCOR device sends data straight to your tablet via an app, where it can be easily stored, analyzed, and shared with other team members.
  7. Time savings and cost reduction: Getting all three measurements with one device significantly save time, costs, and resources associated with the condition assessment of reinforced concrete structures.

This is my first experience performing corrosion detection and I am very happy with iCOR. All the results obtained from iCOR have shown consistent results compared with other non-destructive testing methods. The application is very user-friendly, providing me very clear and useful information on-site, which allows me to perform time effective measurements.

– Milad Moghaddas, Project Coordinator/Engineer, QuakeWrap Inc.

iCOR NACE Corrosion Award

Detect Corrosion in Reinforced Concrete Structures in Seconds

Editor’s Note: This post was originally published in April 2018 and has been updated for accuracy and comprehensiveness

One Response

  1. Seems quite interesting. I would love to involve in your incoming research based projects. Best..

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Articles

Use These Tech Tools for More Efficient Cold Weather Concreting

Let’s dive into our sensors in detail.   Learn More SmartRock Sensors:    SmartRock is a wireless concrete sensor designed for temperature and strength monitoring with the ability to record real-time temperature data for every 15-minute interval for 2 months and comes with remote-monitoring capabilities. It is fast, simple, designed rugged and waterproof, and can be activated and installed hassle-free. The sensor contains two points of temperature measurements located in the sensor cable and body, and comes with an extended temperature cable and probe for mass concrete purposes. This sensor can measure temperature as low as -22℉ (-30℃) with an accuracy range of ±1℃.   The SmartRock sensor, containing a black box, a…

Everything You Need to Know About Pouring Concrete in Winter

Winter is coming! Worried about the cold weather concreting that comes with it in the construction industry? We’ve got it covered with Giatec’s SmartRock sensors.  Keep reading to learn more.  Learn More The temperature is dropping, the days start to get shorter, and frost covers the ground. While it may be exciting to imagine a festive winter season, that is not what comes to mind when working in the construction industry. Especially, when you have a project to complete, a schedule to maintain, and a desired concrete temperature and strength to achieve; the pressure is on when dealing with factors like freezing of concrete at an early age, rapid temperature changes, all…

Giatec’s Unique Concrete Knowledge Resources

The Giatec Scientific website is a treasure trove of concrete knowledge, ranging from blogs and case studies to podcasts and videos! Find a few of our exclusive resources below: Learn More Giatec’s Concrete Terminology Search Bar Need a one-stop destination for searching definitions for a plethora of terms related to concrete knowledge? Make sure to check out our concrete terminology search bar! To search for a term related to cement or concrete, just type a word in the search bar. Try rebar, rodding, aggregates, cracking, or…

Essential Guide for World of Concrete!

January 18-20, 2022 | Las Vegas

Visit us at Booth #N1253

We use cookies to provide you with a better experience, analyze site traffic and assist in our marketing efforts. By continuing to use this website, you consent to the use of cookies in accordance with our Privacy Policy Page.