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Formule importante dans les chantiers


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posté par waleed12

il se passe dans les chantiers qu'on nous donne les resultats d'ecrasement du beton a 7jr et a 14jr et dans la feuille du raport on ne trouve la comparaison qu'avec celle du 28 jr

alor je vous donne cette formule qui vous donne la resistance du beton a n'importe quel jour....

fcj = ( j /(4.76+0.83 j)) x fc28

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