NF EN 12350-7

Testing fresh concrete - Part 7 : air content - Pressure methods

Le présent document décrit deux méthodes permettant de déterminer la teneur en air du béton frais serré, confectionné avec des granulats courants ou relativement denses, ayant une valeur déclarée de D pour les plus gros granulats effectivement utilisés dans le béton (Dmax) inférieure ou égale à 63 mm. L'essai ne convient pas aux bétons ayant des affaissements inférieurs à 10 mm conformément à la NF EN 12350-2. Ces deux méthodes ne sont pas applicables aux bétons de granulats légers, au laitier de haut-fourneau refroidi à l'air ou aux granulats à forte porosité, en raison de l'importance du facteur de correction lié au granulat par rapport à la teneur en air entraîné du béton.

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