Modélisation du fluage propre du béton nucléaire au jeune âge

Jihad Zreiki (1)

1 LMT - Laboratoire de Mécanique et Technologie

A numerical model has been developed to predict early age strains for massive concrete structures. Taking into account creep at early-age is essential if one wants to predict quantitatively the induced stresses if autogenous or thermal strains are restrained. We propose a model of creep takes into account the effect of the hydration and the maturity of material. The evolution of the Young's modulus according to the degree of hydration is a parameter essential took into account in modelling. By introducing our model into a code of element finite (Cast3m), we obtain more logical results. A comparison between experimental calculation and results was carried out.

Mots clés: Basic creep; concrete at early age; Kelvin's Model

Domaines: Matériaux

Jihad Zreiki. Modélisation du fluage propre du béton nucléaire au jeune âge. XXVI èmes Rencontres Universitaires de Génie Civil, 2008, NANCY, France. ⟨hal-00286077v2⟩