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BS EN 12390-18:2021

BS EN 12390-18:2021

$102.76

Testing hardened concrete – Determination of the chloride migration coefficient

Published By Publication Date Number of Pages
BSI 2021 22
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This document specifies the procedure for obtaining the non-steady-state chloride migration coefficient of specimens of hardened concrete at a specified age (See Annex A). 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.

The test procedure does not apply to concrete specimens with surface treatments such as silanes.

If the aggregate or any other embedded elements (such as metallic fibres or conducting particles) are electrically conductive, this will influence the magnitude of chloride migration. This fact is taken into account when establishing threshold values. It prevents comparison of chloride migration values between concretes if the aggregates induce a difference of half an order of magnitude (higher or lower) of chloride migration.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 1 Scope
2 Normative references
3 Terms and definitions
7 4 Symbols
5 Principle
6 Apparatus and equipment
10 7 Preparation of specimens
7.1 Preparing sub-specimens
11 7.2 Preparing test specimens
8 Procedure
8.1 Installation of the test specimens in the migration cell
8.2 Installation of the migration cell in the migration apparatus
12 8.3 Test procedure
15 9 Test evaluation
9.1 Determination of the mean and maximum penetration depth
9.2 Determination of the chloride migration coefficient Mnss
16 10 Variations of the procedure
10.1 Specimens of sprayed mortar and sprayed concrete
11 Report
17 12 Precision estimate
19 Annex A (informative)Background to chloride migration testing

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BS EN 12390-18:2021
$102.76