Testing hardened concrete - Chloride ions migration accelerated test in steady-state conditions - Determining the effective chloride ions diffusion coefficient

Introduction 4

1 Domaine d'application 4

2 Références normatives 4

3 Termes et déinitions, symboles et unités 4

3.1 Termes et déinitions 4

3.2 Symboles 5

4 Principe de l'essai 5

5 Appareillage et réactifs 6

5.1 Appareillage 6

5.2 Réactifs 7

6 Échantillons et corps d'épreuve 7

6.1 Dimensions du corps d'épreuve 7

6.2 Échantillons confectionnés par moulage 7

6.2.1 Confection et conservation des échantillons 7

6.2.2 Confection et conservation des corps d'épreuve 7

6.3 Échantillons prdevés sur ouvrage ou sur élément préfabriqué 7

7 Mode opératoire 8

7.1 Préparation et saturation des corps d'épreuve 8

7.2 Mise en place de l'essai 8

7.3 Vérification de la présence de chlorures dans le compartiment aval et dosage des chlorures de la solution 9

8 Calcul du coefficient de diffusion effectif des ions chlorure et expression des résultats 9

9 Rapport d'essai 9

10 Fidélité 10

Bibliographie 11

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