General Description

This test method allows concrete to be evaluated in terms of chloride permeability, this parameter is essen­tial as it influences concrete durabilit...
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Description

This test method allows concrete to be evaluated in terms of chloride permeability, this parameter is essen­tial as it influences concrete durability.
The test is performed applying a voltage difference between the ends of a cylindrical specimen, one end is the negative and is immersed in a sodium chloride solution, the other is the positive and is in a sodium hydroxide solution.
 

Testing procedure to ASTM and AASHTO
While keeping 60 VDC difference between the specimen ends, current (Ampere) transmitted through the specimen is accu­rately measured over time calcu­lating the total charge (Coulomb). This value relates to the specimen resistance to chloride ion pene­tration.
In accordance with the Stand­ards indications, starting from the measured total charge, the instrument provides qualitative indications of the chloride ion penetrability level (from High to Negligible).
Two test cells are available de­pending on the specimen dimen­sions:

58-E5220/A1
Complete test cell to ASTM and AASHTO suitable for concrete speci­men dia. 100 mm x 50 mm length. It includes 2 heads and cables, 1 temperature probe, 4 tie rods for cells tightening, 2 gaskets, 1 rigid plastic sleeve for hydraulic seal.

58-E5220/A2
Complete test cell to ASTM and AASHTO suitable for concrete speci­men dia. 100 mm x 200 mm length. It includes 2 heads and cables, 1 temperature probe, 4 tie rods for cells tightening, 2 gaskets, 2 rigid plastic sleeves with 4 internal tie rods for hydraulic seal.

Testing procedure to NT BUILD 492
This test method requires to ad­just the voltage difference start­ing from 30 VDC depending on the transmitted current.
The CI-METER allows continuous voltage adjustment from 5 to 70 VDC. Suggested voltages and test durations are pre-set in the instru­ments to drive the user to the cor­rect test execution.
For this test method, the follow­ing kit is required:

58-E5220/A3
Migration set up kit to NT BUILD 492 for simultaneous testing of up to 3 specimens. It includes:
Transparent plastic tank
3 specimen holders with stainless steel support, plastic spacers, electrodes (+ and -), perforated grids, stainless steel clamps, rubber sleeves, cables
3 temperature probes
 
Test cell for chloride ion penetration meter
Two CI-METER models are available:

58-E5214
for simultaneous test of up to 4 specimens

58-E5218
for simultaneous test of up to 8 specimens
 

Products

Code
Description
Units

Technical Specifications

  • 4 or 8 specimens simultaneous testing (see the models)
  • Each channel is independent
  • Programmable test duration
  • Adjustable sampling rate (starting from 1 minute)
  • Continuously variable voltage difference from 5 to 70 VDC inde­pendent for each channel.
  • Voltage accuracy better than +/- 0.1V, resolution 0.01 V
  • Continuous current measurement with accuracy +/- 1 mA, resolu­tion 0.1 mA
  • Continuous temperature measure­ment with PT100 probe, accuracy +/- 1°C, resolution 0.1°C
  • Testing data displayed in numerical and graphical mode
  • 7” color display with capacitive touchscreen
  • 8 GB internal memory
  • USB port for data export/storage on external memory (USB pen drive)
  • LAN port for PC connection
  • RS 232 serial port for PC or serial printer connection
  • Friendly interface with pre-set test routines to the main Standards plus custom procedures

Dimensions and weights: 

  • Instrument: (l x w x h) 503 x 330 x 164 mm, 11.5 kg
  • Cell 58-E5220/A1: (l x w x h) 200 x 150 x 150 mm, 3.5 kg
  • Cell 58-E5220/A2: (l x w x h) 350 x 150 x 150 mm, 5 kg
  • Migration set up kit 58-E5220/A3: (l x w x h) 380x270x280 mm, 10 kg
     

 

Standards

  • ASTM C1202
  • AASHTO T277
  • ASTM C1760
  • NT BUILD 492

Accessories and Spare Parts

Code
Description
Units