BINDER COMPOSITION COMPRISING POZZOLANIC MATERIAL AND FINE FILLER

The invention concerns a binder composition comprising: a. between 1% and 30% in dry weight of Portland cement, lime or a mixture thereof; b. between 1% and 40% in dry weight of ground granulated blast furnace slag; c. between 20% and 50% in dry weight of at least one pozzolanic material; d. between 20% and 65% in dry weight of at least one filler; e. between 0.5% and 10% in dry weight, relative to the total weight of components a, b c and d, of at least one activator; f. between 0.05% and 1.5% in dry weight, relative to the total weight of components a, b, c and d, of at least one water reducer polymer; said filler being a particles mixture of: - between 10% and 90% in weight, in respect with the total weight of the filler, of particles having a d50 greater than or equal to 0,05μm and strictly less than 8μm, and - between 10% and 90% in weight, in respect with the total weight of the filler, of particles having a d50 greater than or equal to 8μm and strictly less than 200μm.