TFB DIAGNOSTIC SYSTEMS AG
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Migration cell for chloride resistance test

Migration cell for chloride resistance test

The test standards SIA 262/1 annex B and FprEN 12390-xx:2018 specify procedures for obtaining the non-steady-state chloride migration coefficient of specimens of hardened concrete at a specified age. The test procedure does not take into account any interaction of concrete with the saline solution over time. The test result is a durability indicator with respect to the resistance of the concrete investigated against chloride penetration.

Our migration cells are compatible with both standards and allow the cylindrical test specimen (core) to be exposed on the parallel surfaces to the alkaline solutions while sealing them laterally with non-conductive O-rings.

A concrete or mortar specimen is placed between a chloride free and a chloride containing alkaline solution and an electric voltage is applied between two external electrodes to drive the chloride ions into the concrete specimen (migration process). After a given period, the specimen is split, and the penetration depth of the free chloride ions is determined with a suitable colour indicator solution. The chloride migration coefficient is calculated based on the measured depth of penetration, the magnitude of the applied voltage and other parameters.

According the Swiss standard SIA 262/1 annex B, either 5 cores of 50 mm diameter or 3 cores of 100 mm diameter are tested together. We offer migration cells for both core diameters.

Migration cell
Migration cells for small and standard size cores

Cell disassembled
Disassembled cell

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