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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