s2betontd2.py

Created on May 22, 2024

683 Bytes

TD2 Module de finesse du sable :
  1) Calculer le module de finesse des deux sables. Est-il possible d'utiliser le sable 1 ou le sable 2 pour confectionner ce béton ? Que convient-il de faire ? 
  Avec le sable 1 2.2 et le sable 2 2.8
avec le module de finesse la somme des refus cumulés à différents tamis /100
ATTENTION A LA FAUSSE LOGIQUE, C'EST DIFFERENT DE 1 
  2)Determiner les proportions des sables 1 et 2 pour avoir un sable mélangé avec un module de finesse de 2.5. 
  S1 + S2 = 1
S1 = Mf2 - Mfopt / Mf2 - Mf1
S2 = Mfopt - Mf1 /Mf2 - Mf1
  3) Tracer sur le même graphique le sable mélangé. 
Refus 1 = s1*Rfus1 du sable 1 + S2Refus1 du sable 2
etc

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s2betontd2.py