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Giatec Scientific iCOR User Manual

Connection less corrosion rate measurement device for reinforced concrete structures
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Smart Concrete Testing Technologies
™
USER MANUAL
iCOR
®
C O N N E C T I O N L E S S
C O R R O S I O N
R A T E
M E A S U R E M E N T
D E V I C E
F O R
R E I N F O R C E D
C O N C R E T E
S T R U C T U R E S

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Summary of Contents for Giatec Scientific iCOR

  • Page 1 Smart Concrete Testing Technologies ™ USER MANUAL iCOR ® C O N N E C T I O N L E S S C O R R O S I O N R A T E M E A S U R E M E N T...

  • Page 3: Table Of Contents

    ......................2 EVICE PERATION ......................3 EVICE LEANING ..................3 PERATION NVIRONMENT ....................3 TORAGE NVIRONMENT INTRODUCTION TO GIATEC ICOR ............4 ® ................5 ORROSION OF TEEL IN ONCRETE ................5 ORROSION EASUREMENT ) ............... 7 OLARIZATION ESISTANCE OF EBAR ..............
  • Page 4 ..................... 51 PERATING ONDITIONS REFERENCES .................... 52 TERMS AND CONDITIONS OF SALE ("SALE AGREEMENT") ..53 EXH I BIT A: E ND U SE R SOF T WA RE L I CE NS E ...... 60 © Giatec Scientific Inc.

  • Page 5: Package Contents

    PA C K A G E C ON T E N T S Part Photo iCOR Measuring Device ® Measurement Cable (for half-cell test) Charging Cable Charger Cable for Tablet Contact Sponge (for half-cell electrode) Alligator Test clip Contact Sponge (for corrosion electrodes) Electrode Storage Solution © Giatec Scientific Inc.
  • Page 6 Tablet with hands-free carrying support Tablet Charger Verification Kit (for half-cell potential) Verification Kit (for corrosion rate/electrical resistivity) * Please note that the images above are for illustration purpose only and might not be to scale. © Giatec Scientific Inc.

  • Page 7: Warranty

    Giatec is not responsible for damage arising from failure to follow instructions relating to the Product’s use. This Warranty is voided immediately if repair, modification (to include upgrades, expansions or usage or addition of non-manufacturer parts or accessories), alteration or © Giatec Scientific Inc.
  • Page 8 Giatec in writing. THE WARRANTY SET FORTH IS EXCLUSIVE AND NO OTHER WARRANTY, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED. GIATEC SCIENTIFIC INC. SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

  • Page 9: Safety Instructions

    S A F E T Y I N S T RU C T I O N S This chapter contains important safety instructions that the user must follow to operate and store the Giatec iCOR device. Read the following safety ®...

  • Page 10: Device Handling

    PERATION WARNING • Power Input: USB only. • Only use the provided USB charging cable for iCOR®, and the provided power adapter for the tablet. • Do not perform measurements at the circuits directly connected to Mains (Live circuit). •...

  • Page 11: Device Cleaning

    Disconnect the device from the cable after testing (in case of half- cell measurement). • Do not use chemicals or cleaners containing harsh products such as benzene, toluene, xylene, and acetone. • Do not submerge the iCOR device or the operating tablet ® PERATION NVIRONMENT ATTENTION •...

  • Page 12: Introduction To Giatec Icor

    ® the corrosion rate of rebar through a non-invasive approach. This means that the need to connect the measuring unit to the rebar (which is the case for other commercial devices) is eliminated in iCOR . Fig. 1 schematically ®...

  • Page 13: Corrosion Of Steel In Concrete

    AC current is applied between the outer electrodes and the voltage between the inner electrodes is measured. Figure 3. The configuration of 4 electrodes on the surface of concrete for corrosion detection of rebar inside the concrete © Giatec Scientific Inc.
  • Page 14 In Giatec iCOR ® the low-frequency behavior of reinforced concrete system is determined by applying a narrow DC/AC current pulse or a DC/AC step voltage for a short ©...

  • Page 15: Polarization Resistance Of Rebar Rp

    OLARIZATION ESISTANCE OF EBAR This parameter is related to the corrosion rate of rebar in concrete. One can calculate the corrosion rate from R using the following well-stablished equation: © Giatec Scientific Inc.

  • Page 16: Electrical Resistivity Of Concrete

    CELL OTENTIAL EASUREMENT iCOR® is also equipped with a reference electrode for half-cell corrosion measurement (Fig. 6). The purpose of the half-cell potential measurement is to determine the electrical potential on the surface of concrete which is an indication of corrosion potential of rebar in concrete.

  • Page 17: Application

    Table 1- Relationship between the potential values and corrosion probability (adapted from ASTM C876) Probability of Measured Potential (mV/CSE Steel Corrosion Activity > -200 Less than 10% -200 to -350 Uncertain < -350 More than 90% CSE= Copper Sulfate Electrode © Giatec Scientific Inc.

  • Page 18: Complications / Limitations

    For example, ambient and measurement conditions can influence these measurements. These complications can lead to misinterpretations of the collected data. The most important parameters that can influence measurements are briefly described below: © Giatec Scientific Inc.
  • Page 19 Generally, a lower concentration of oxygen at rebar level leads to lower corrosion rate but more negative half-cell potential values (Gu and Beaudoin 1998, Elsener et al. 2003), which can be misleading. © Giatec Scientific Inc.

  • Page 20: Icor ® Overview

    This section describes how to setup and operate the iCOR device for ® measuring the corrosion rate and corrosion potential of steel reinforcement in concrete structures. Before starting a test, please make sure that the iCOR ® device and your data recording unit are fully charged. iCOR ®...
  • Page 21 User Manual ® Figures 8 to 10 show the components of the Giatec iCOR measurement ® device. Figure 8. Giatec iCOR - Top view ® Notification LED ON/OFF button Handle Figure 9. Giatec iCOR - Side view ® Charging/Half-Cell connection terminal...
  • Page 22 -0.65 mV per °C for the temperature range between 0 to 50 °C. If the temperature compensation mode is selected in the Giatec iCOR® software, the results are modified and presented for 25°C. The Giatec iCOR® half-cell potential measurement unit is equipped with a maintenance-free electrode.

  • Page 23: Icor ® Operation

    Figure 11. Giatec iCOR – Bottom view Before performing a test, make sure that the sponges at the tip of the electrodes as well as that on the half-cell electrode are completely moist.

  • Page 24: Turning O N The Icor

    User Manual ® iCOR ® URNING N THE Press and hold the main power key of the iCOR device for 2 seconds. This ® will turn on the device. Push the button for 2 seconds Figure 12. Turning on the iCOR ®...

  • Page 25: Charging The Icor

    User Manual ® a fully charged battery. The LED will be an orange color when the iCOR ® unit is being charged. The device will not turn on when connected to the charger. Slow Flashing Mode When the LED is flashing a red color, it represents the “advertising mode”.

  • Page 26: Turning Off And On The Device

    User Manual ® Push the charging socket firmly until it clicks. Figure 13. Charging Giatec iCOR ® device. URNING EVICE The device turns off by pressing the ON/OFF button for 5 seconds. If the device remains inactive for 10 minutes, it will automatically power off. To turn the device back ON, press and hold the ON/OFF for 2 seconds.

  • Page 27: Data Recording And Processing Setup

    ABLET OFTWARE The data recording unit for the iCOR device consists of a tablet with a pre- ® installed app. The user would have a chance to install the latest version of the iCOR device as soon as it becomes available online.
  • Page 28 User Manual ® Step 1: From the home screen on the tablet, tap on the “Giatec iCOR ” icon. ® This will launch the iCOR software. ® Figure 15. Launching the software The main “Control” menu items are located at the toolbar at the top of the screen.
  • Page 29 (Fig 17). Step 5: Specify the rebar diameter in both vertical (Y) and horizontal (X) direction. Press Save to generate the test grid. This will generate the test grid in the working area (see Fig. 18). © Giatec Scientific Inc.
  • Page 30 The user can select any location, and assign the measured values by double-clicking on the test grid working area screen. However, the operator can Turn Off the Off- grid Sampling feature. © Giatec Scientific Inc.
  • Page 31 Bluetooth communication on the device. Step 7: A list of available device(s) will then appear on the screen (Fig 20). In the search results, select the iCOR . This will connect the device to the ®...
  • Page 32 User Manual ® Figure 19. Connecting the tablet to the device Figure 20. Select the appropriate device from the list © Giatec Scientific Inc.
  • Page 33 When the tablet is connected to the device, the device icon on the toolbar will change to a green color. This indicates that the device and tablet are paired and ready for testing. The battery indicator will also turn on showing the charging level of the battery in the iCOR device. ®...
  • Page 34 ® Figure 22. Device connected Step 8: In order to conduct the measurements on a specific location on the grid, simply move the Giatec iCOR device to the corresponding grid point ® on the concrete surface (Fig. 23(a)). Press and hold the corresponding grid point on the tablet screen (Fig.
  • Page 35 User Manual ® (a) Concrete surface with gridlines (b) Press on the corresponding grid point on the tablet. Figure 23. Tap on the grid point to start the measurements © Giatec Scientific Inc.
  • Page 36 After the test parameters are all set, press ► to start the measurements. The commands will be transmitted to the iCOR device and the device will ® perform the test. The results will be sent to the tablet after the measurements are taken, analyzed and displayed on the tablet screen.
  • Page 37 User Manual ® Figure 24. Test setup parameters Figure 25. iCOR device taking a measurement ® The test results will be identified with different color labels to help the user interpret the results. In Tables 4 to 6, definitions of each color codes are provided.
  • Page 38 For each measurement, a fitted curve of the voltage measurement over time is displayed in blue color and used to determine the corrosion rate and concrete resistivity. The R value of the fitted curve is also displayed which indicates how scattered the data points are. © Giatec Scientific Inc.
  • Page 39 User Manual ® (a) Test sample with severe corrosion activity (b) Test sample with low to medium corrosion activity Figure 26. Analyzed data after completion of the test © Giatec Scientific Inc.
  • Page 40 It is noted that since the measurement slightly polarizes the steel rebar, the results may be slightly different from the initial test results if the measurement is repeated immediately at the same spot. © Giatec Scientific Inc.

  • Page 41: Errors

    Table 7, 8 and 9. Table 7: Error 1 ERROR 1 This error indicates that the iCOR cannot polarize the rebar. It will show ® either a flat or decreasing voltage measurement curve.
  • Page 42 This can also happen if there is a spliced rebar at the measurement point. Movement of the unit Removing pressure or displacing the unit could during measurement cause the measurement to be incomplete. © Giatec Scientific Inc.
  • Page 43 In most cases, multiple points of connection with the rebar need to be made and conductivity between each location should be verified with a voltmeter. © Giatec Scientific Inc.
  • Page 44 User Manual ® (a) Error 1 and Out of range (b) Error 2 Figure 28. Error messages © Giatec Scientific Inc.
  • Page 45 (blue bullets), simply press and hold the corresponding grid point. The measurement screen page will pop up showing the previously recorded data at that specific coordinate. Discard the previously saved values, and run the measurements again. © Giatec Scientific Inc.

  • Page 46: Contour Plots

    A pop-up menu will be displayed with five parameter options for contour plotting (Fig. 30), the user can select the parameter of interest for contour plotting. Figure 29. Test grid working area with measurement points © Giatec Scientific Inc.
  • Page 47 User Manual ® Figure 30. Test grid working area with measurement points Figure 31. Corrosion rate Y Direction (Vertical) contour map © Giatec Scientific Inc.

  • Page 48: Data Exporting And Sharing

    By clicking on the share icon at the top of the screen, the data can be exported and shared in a spreadsheet format (CSV), image format (PNG), and PDF format (Fig 32). Select the output file format Figure 32. © Giatec Scientific Inc.
  • Page 49 To share the data, select the appropriate file format and press Share button. A dialog box will appear asking to select a report type and a share method, such as email, cloud storage (Google Drive, Dropbox, etc.) or through Bluetooth communication (Fig. 34). © Giatec Scientific Inc.
  • Page 50 The user can only save in the PNG and PDF format if a contour map was generated. However, it is possible to save the raw data in a CSV format without generating the contour map. This can be achieved by selecting the © Giatec Scientific Inc.
  • Page 51 CSV Share or Save option. Figure 35 shows a typical PDF report format generated by the software. (a) Project Description in the PDF report (b) Contour Map in the PDF report © Giatec Scientific Inc.

  • Page 52: Verification

    Step 1- Connect the tablet to the iCOR® (refer to the instruction on page 23, Step 6) Step 2- Access the Verification through the Main Menu.
  • Page 53 (i.e., red probe) by pushing the banana jack into the socket (Fig.37). Make sure there is a good contact between the sponges of the verification and half-cell electrodes. © Giatec Scientific Inc.
  • Page 54 Make sure the measuring electrodes are properly placed on the verification kit; the electrodes should be in full contact with the circles on the verification kit (Fig.38). (a)Vertical verification (b) Horizontal verification Figure 38. Corrosion rate/ concrete resistivity verification © Giatec Scientific Inc.
  • Page 55 “PASS” or “FAIL” message. If the verification fails, please contact our technical support team using the information on the back of this user manual. (a) Pass message after verification (b) Fail message after verification Figure 39. Verification status © Giatec Scientific Inc.

  • Page 56: Log File

    ® (tablet) before conducting measurements in the field. Refer to the iCOR Operation Section of this user manual to learn how to charge the device. Electrodes positioning: The location of the corrosion measurement electrodes affects the measurement of corrosion rate.
  • Page 57 © Giatec Scientific Inc.

  • Page 58: Maintenance

    If the iCOR device does not turn on, check the LED on the device for the ® battery status and charge the device if required. If iCOR still does not work ® properly; review this user manual to make sure you are operating it correctly.

  • Page 59: Giatec Icor ® Technical Specifications

    Operating temperature 0 ~ 45 °C Operating humidity 20 ~ 90% Storage temperature 0 ~ 50°C Storage humidity 5 ~ 95% Weight of iCOR Device 1 kg ® Dimensions of iCOR Device 184 mm x 116.5 mm (D x H) ®...

  • Page 60: References

    Condition from Durability Results. Corrosion of Reinforcement in Concrete Construction.Chichester: Ellis Horwood, , 193-222. [10] Millard, S. G., & Gowers, K. R. (1992). Resistivity assessment of in-situ concrete: the influence of conductive and resistive surface layers. Structures and Buildings, 94(4), 389-396. © Giatec Scientific Inc.

  • Page 61: Terms And Conditions Of Sale ("Sale Agreement")

    TERMS AND CONDITIONS OF SALE ("SALE AGREEMENT") Please read this Sale Agreement before using the Giatec Scientific Inc. (“Giatec”) product (the “Product”). By finalizing Your purchase order, You, the purchaser of the Product, and, if applicable, any end user (“End User”) on whose behalf You are making this purchase for (You and the End User are hereafter collectively referred to as “Customer”;...
  • Page 62 Product is not received. Giatec will respond to Customer support problems by phone or by email inquiry. If a support problem cannot be rectified via phone or email, Customer will be provided with return instructions. © Giatec Scientific Inc.
  • Page 63 Customer and Giatec discovers that the Warranty is inapplicable due to the reasons provided above (see the “Limited Warranties” section hereof), the Product will not be repaired and will be returned to Customer at © Giatec Scientific Inc.
  • Page 64 © Giatec Scientific Inc.
  • Page 65 Any attempt to do so is a violation of the rights of Giatec. By virtue of this Sale Agreement, Customer acquires only the right to use the Software as contained in the Product and does not acquire any © Giatec Scientific Inc.
  • Page 66 Arbitration of the International Chamber of Commerce by one or more arbitrators appointed in accordance with the said Rules. The place of arbitration shall be Ottawa, Ontario, Canada. The language of the arbitration shall be English. For the purposes of this arbitration, this Sale Agreement © Giatec Scientific Inc.
  • Page 67 Any non-English language translation of this Sale Agreement is done for local requirements and in the event of a dispute between the English and any non- English versions, the English version of this Sale Agreement shall govern. © Giatec Scientific Inc.

  • Page 68: Exhibit A: End User Software License

    You may not remove or alter any trademark, trade names, product names, logo or other proprietary notices, legends, symbols or labels in the Software. © Giatec Scientific Inc.
  • Page 69 ATTORNEY FEES) ARISING OUT OF THE USE OF OR THE INABILITY TO USE THIS SOFTWARE, EVEN IF GIATEC OR ITS SUPPLIERS OR DISTRIBUTORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY © Giatec Scientific Inc.
  • Page 70 Agreement. This Agreement is governed by the laws of the Province of Ontario and any disputes or claims arising hereunder shall be under the exclusive jurisdiction of the courts situated in the City of Ottawa, Province of Ontario. © Giatec Scientific Inc.
  • Page 72 Giatec Scientific Inc. 245 Menten Place, Suite 300, Ottawa, ON, K2H 9E8, CANADA Phone: +1 (613) 240-7451 Fax: +1 (613) 280-1544 support@giatecscientific.com www.giatec.ca Ver. 4.0 Printed in Canada...

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