signification de 35/45 dans le ciment

in #arab2 years ago

La classification des ciments est normalisée par la norme marocaine NM 10.1.004, un CPJ 45 est un ciment dont la classe de résistance (NM 10.1.005) est 45 cad une résistance a la compression ordinaire a jeune âge, et une résistance a la compression a 28jours comprise entre 32.5MPa(limite inférieure) et 55MPa(limite supérieure). 35 et 45 se signifie le temps de durcissement

كاينين بزاف دالانواع ديال سيما مي جوج هما لمعروفين مزيان هما سيما د 45 وسيما د 35 السؤال الطروح هنا اش تتعني ديك 45 و 35 ??
ليداروا فيها سطاج غيعرفوها

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