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Germann Instruments, Inc.

Test Smart – Build Right

©

10.1

Running the test for ASTM C 1202 and NT BUILD 492

Setup → Voltage - all channels

The ASTM C 1202 standard specifies the voltage to be at 60 V. For the NT BUILD 492 the start-up voltage
is 30 V and, depending on the initial current measured, the final testing voltage and the time tested over
are selected according to what is stated in the NT BUILD 492 standard requirements.

Setup → Testing time

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Содержание PROOVE it

Страница 1: ...te www germann org For ASTM C 1202 AASHTO T 277 832 ASTM C 1760 NT BUILD 492 French Standards XP P 18 461 or XP P 18 462 Germann Instruments Inc Test Smart Build Right GERMANN INSTRUMENTS A S Emdrupvej 102 DK 2400 Copenhagen NV Denmark Phone 45 39 67 71 17 germann eu germann org Web site www germann org User Manual v4 0 ...

Страница 2: ...en eliminated from the manual or from the hardware or software to which it relates The hardware and the software are continuously in a process of development therefore the information in this document is subject to change without notice All copyright and reproductions are reserved concerning the hardware and the software No part of this manual may be reproduced by print photocopy or any other mean...

Страница 3: ...ith epoxy 15 8 Connecting the cells to the Proove it Microprocessor Power Supply unit 15 9 Installing the Proove it Software ProovePC v4 0 16 10 Turning on and running the system 16 10 1 Running the test for ASTM C 1202 and NT BUILD 492 18 10 2 Running the test for ASTM C 1760 27 11 Turning off the system 32 12 Disassembling a Proove it cell and maintenance 32 13 Verification of the Proove it Unit...

Страница 4: ...onductivity of Hardened Concrete NT BUILD 492 Nordtest Method for concrete mortar and cement based repair materials Chloride Migration Coefficient from Non Steady State Migration Experiments XP P 18 462 Accelerated Migration Test of Chloride Ions under Non Steady State XP P 18 461 Accelerated Migration Test of Chloride Ions under Stationary State The software and all testing cells are compatible w...

Страница 5: ...ic of a standard Proove it cell 7 Red banana jack 8 Black banana jack 9 Sealing gasket 10 Wire mesh 11 Spacer 12 Concrete specimen 1 Reservoir for NaCl solution 2 Reservoir for NaOH solution 3 Solution filling inlet 4 Solution filling inlet 5 Steel bolt 6 Washer and nut ...

Страница 6: ...with a diameter of 95 mm 3 50 mm long See table 1 Table 1 Chloride ion penetrability based on charge passed 1 Coulombs Chloride Ion Permeability Typical of 4000 4000 2000 2000 1000 1000 100 100 High High w c ratio Moderate 0 4 0 5 w c ratio Low w c ratio 0 4 Very low Latex modified concrete Negligible Polymer modified concrete a The standard PR 1000 cell for ASTM C 1202 b The PR 1200 cell for ASTM...

Страница 7: ...ecified in ASTM C 1760 for measuring the bulk electrical conductivity of hardened concrete which has a theoretical relationship to the diffusion coefficient of chloride ions in the concrete 17 18 Experimental data 19 20 confirm that there is a correlation between the bulk electrical conductivity and the apparent chloride diffusion coefficient as measured by the non electrical methods ASTM C 1556 T...

Страница 8: ...e MERLIN system produced by Germann Instruments measuring the bulk electrical conductivity or the inverse the resistivity in a matter of seconds without using cells See figure 4 Most importantly the conductivity or resistivity can be measured on any sized specimens not only 100 mm diameter x 200 mm long specimens For larger specimens the MERLIN GRANDE is available Figure 4 The MERLIN system shown ...

Страница 9: ...ts of 5 V DC in the range from 5 V DC to 60 V DC After the test has been completed the specimen is removed from the cell and split Then the penetration depth of the chlorides is determined by a 0 1 M silver nitrate solution on the freshly split surface and the Migration Coefficient calculated by the equation provided in the NT BUILD 492 standard 4 The calculated Migration Coefficient in units of 1...

Страница 10: ...uld specify gaskets size PR 1200 Proove it Measuring cell for the XP P 18 461 PR 1000 113 20 Proove it Measuring cell with cooling ribs for the XP P 18 461 PR 1001 113 20 Red connecting cord PR 1001 Black connecting cord PR 1002 Spare mesh for cells PR 1003 Temperature probe for Proove it Classic one per channel PR 1005 Two 17 mm wrenches PR 1006 300 ml bottle of 3 0 NaCl solution only for ASTM C ...

Страница 11: ... on the structure the same CEL 100 CORECASE coring rig is also recommended Drill to a minimum depth of 210 mm Then break the core using a hammer and chisel and extract it If a different coring rig is to be used make sure the diamond drill bit has an inner diameter of 100 mm The specimens for ASTM C 1202 or NT BUILD 492 are saw cut to a length of 50 mm 1 mm e g by using the PR 1060 saw that aligns ...

Страница 12: ...ect the hose from the vacuum pump to one of the valve nipples in the lid Open the valve and turn on the pump After running the vacuum pump for the required 3 hours close the valve and then turn off the pump Attach another hose to the second valve of the desiccator s lid and place the end of the hose in the container with the prepared boiled water make sure that the amount is enough for all the spe...

Страница 13: ...of each mesh eases assembly of the cell Tightening of the four bolts nuts washers is performed in a cross between two bolts more and more Table 3 Specimen diameter related to the required type of gasket Specimen diameter mm Gasket type Gasket dimensions inner diameter outer diameter thickness Epoxy Recommended between gasket and specimen 104 102 PR 1010A 99 mm x 127 mm x 10 mm No 101 97 PR 1010B 9...

Страница 14: ...r the specimen and against the first sealing gasket Now apply a light coat of silicone oil to the other face of the spacer and place the second sealing gasket over the specimen and against the spacer See figure 9 Squeeze the gaskets and spacer together and center the specimen in this subassembly Figure 8 Half of the cell with the bolts straight up Figure 9 Position of the gaskets in the spacer App...

Страница 15: ...n a table Observe if the level is stable in the filling holes and or if the paper has leakage spots Should leakage occur after assembling the cell is disassembled in a sink the parts blotted dry and a thin layer of silicone is applied to the inner circumference of the gasket prior to installation on the specimen Reassemble fill in de aerated water again and make sure the cell is watertight Before ...

Страница 16: ... has hardened enough to turn this subassembly upside down To avoid water evaporation from the ready made moistened specimen cover the specimens with a plastic wrap or sheet and allow the epoxy to harden according to its specifications Oil with silicone oil slightly the side faces of the gaskets prior to mounting the gaskets in the cell and follow the same procedure described in section 6 to comple...

Страница 17: ...urning on and running the system The power supply is connected to electricity with the appropriate line cord 110 V AC or 220 V AC The RS 232 serial cable is hooked up between the control unit and an USB port of a laptop or PC A RS232 to USB converter is required Make sure that the drivers for the converter are installed from the dedicated software and that Windows recognizes it well Go to the Wind...

Страница 18: ...ting Testing time The total time selected for testing in hours minutes format Specimen diameter The actual diameter of the specimen in millimeters Coulombs adjusted The Coulombs calculated up to the elapsed time value Permeability Class The specimen classification according to the Coulombs value All readings are updated every 5 seconds during testing indicated by a moving blinking cursor To start ...

Страница 19: ...ll channels The ASTM C 1202 standard specifies the voltage to be at 60 V For the NT BUILD 492 the start up voltage is 30 V and depending on the initial current measured the final testing voltage and the time tested over are selected according to what is stated in the NT BUILD 492 standard requirements Setup Testing time ...

Страница 20: ...he default selected option is 100 mm diameter for all channels For each sample the actual diameter has to be entered enabling the software to calculate the correct Permeability Class according to the ASTM C 1202 classification system The program will automatically apply the corrections to the ASTM standard s 95 mm specimen size If the Coulombs for the 100 mm diameter specimen needs to be known poi...

Страница 21: ...ning all the time until the test finishes Testing will proceed until the selected duration of time has been reached or before if the user stops the test A test will stop if the temperature of the liquid in the measuring cells exceeds the maximum temperature of 90o C or if the current measured reaches 500 mV which is the maximum capacity of the electronic circuits for each channel A status of OVFL ...

Страница 22: ...on with the mouse or press the combination Ctrl the Function key for the desired channel e g keys Ctrl F4 for channel 4 When a channel is unlocked a yellow unlock symbol will be shown beside the channel number The test continues as usual but can be stopped either for interrupting the test or to prepare and print the data ...

Страница 23: ... Ctrl Shift the Function key for the desired channel e g keys Ctrl Shift F4 for channel 4 Once a channel is stopped it cannot be started again before resetting the data After stopping a channel it is possible to save the data obtained and reset the channel All data will be saved in a database in SQL format located in C proovePCdata Reset Save Reset channel ...

Страница 24: ...o save and or reset the channels enter the information in the pop up window SaveData Once the results are saved for a channel a confirmation will be given If the Stop option has been selected the software will ask if the data has to be saved Report Reporting the data Use the Proove it Report Manager to print a report with test data It can be started either by selecting the Report in the ProovePC m...

Страница 25: ...w which will contain every test that has been ran A specific Test can be opened by clicking on the left column in the table shown above The data for the channel selected is shown on the right side of the screen The readings of current mA and temperature are saved in the database every 5 minutes ...

Страница 26: ...xis will be automatically adjusted depending on the number of readings The temperature is indicated with the blue line and the current with the light blue columns Each blue column represents results every 5 minutes Once all information about a sample is entered a report for each specimen tested can be printed out by activating the Print Report button at the bottom An example of a report is shown b...

Страница 27: ...ePCdata a file with the name Prooveit User Logo jpg is located By default this logo will appear on the report The logo looks as follows To change the logo the JPEG file with the company name has to be renamed to Prooveit User Logo jpg and has to overwrite the existing file If a report has to be made without a logo the file for a blank logo rename this file to Prooveit User Logo jpg located in the ...

Страница 28: ...g the test for ASTM C 1760 For using the Proove it for the Bulk Conductivity test the program mode has to be changed by clicking on bulk conductivity C 1760 from the Setup menu in the main screen When changing the mode from the setup menu a message like this is shown After pressing the OK button the program restarts in the new program mode Make sure that all data has been saved in the mode that op...

Страница 29: ...ameter and length can be set in the setup menu but the test time is always 1 minute and cannot be changed Although the standard voltage for ASTM C1760 is 60V it is allowed to change it Setup Specimen diameter Select one of the default 100 mm diameter options from the menu or input the actual diameter for the desired channel ...

Страница 30: ...ecimen Length Select one of the default 200 mm length options from the menu or input the actual length for the desired channel Setup Voltage all channels Select the testing voltage for the channels however the standard voltage according to ASTM C 1760 is 60 V ...

Страница 31: ...same instructions applied as mentioned in section 10 Refer to that section for details Screen shots of a test running and after finishing are shown below Note that the testing time is always one minute When the tests stop the channels can be reset and data saved as explained in section 10 ...

Страница 32: ...the shortcut created during the installation The Report Viewer is shown below with an example of a file ready to print To suppress data that will not be printed use the filters on the top of the Report Viewer Alternatively some lines can be selected and by pressing the DEL key they will be removed from the list The information will not be deleted from the database just from the report Deleting dat...

Страница 33: ...f the unit and disconnect the cells from each channel s set of jacks Finally remove the temperature probes from the cells and disconnect them from the Power Supply Unit 12 Disassembling a Proove it cell and maintenance Place the cells in a proper sink Unthread the nuts from the bolts using the two 17 mm wrenches Allow the solutions to be drained into the sink and remove the concrete specimen along...

Страница 34: ... parts of the banana binding post Check the conductivity between the metal part of the binding post and the metal ring of the mesh with a multimeter The electrical resistance has to be the same as when the meter probes are touched together Otherwise tighten the banana jack post more 13 Verification of the Proove it Unit For verification of a Proove it Microprocessor Power Supply unit the PR 1055 V...

Страница 35: ... testing Make sure the exterior of the cell is dry The power supply is turned off when connecting or disconnecting Connect the red jack from one channel to the red terminal of the cell with the red cord Similarly connect the same channels black jack to the black terminal of the cell with the black cord Never place the cell on top of the Power Supply Unit Never place the Power Supply Unit or the ce...

Страница 36: ... oil should be disposed of in a leak proof corrosive resistant container After every evacuation while pump is warm and oil is thin place the pump on a level surface and open drain oil Oil can be forced from the pump by opening one intake partially blocking the exhaust with a cloth while the pump is running Do not operate the pump for more than 20 seconds using this method Close drain Remove oil fi...

Страница 37: ... Methods Concrete International June 1996 9 Cussigh F Bonnard V Carde C and Houdusse O RION ANTIRION BRIDGE PROJECT CONCRETE DURABILITY TOWARDS CORROSION RISK CONSEC 07 Tours France 10 Bognacki C J Pirozzi M Marsano J and Baumann W C Rapid Chloride Permeability Testing s Suitability for Use in Performance Based Specification Concrete International May 2010 11 Hassanain M A The New Sitra Bridges Sp...

Страница 38: ... Houston 3 7 April 2005 NACE International Houston TX www nace org 20 Baroghel Bouny V Kinomura K Thiery M and Moscardelli S Easy Assessment of Durability Indicators for Service Life Prediction or Quality Control of Concretes with High Volumes of Supplementary Cementitious Materials Cement and Concrete Composites 33 2011 p 832 847 21 Snyder K A Feng X Keen B D and Mason T O Estimating the Electric...

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