Concrete mix design and method for realizing dam or other massive structure by using the concrete mix design
AssigneeSIMEM S.p.A.
InventorsFederico Furlani, Christopher Hicks, Michele Furlani
Life of this patent
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Abstract
A concrete mix, including: cementitious content between 25 and 200 kg/m3; fly ash content between 25 and 175 kg/m3; dirty sand with fine aggregates between 3% and 20%; water content between 150 I/m3 and 250 l/m3; and a chemical admixture comprising one or more components selected from the following: an acrylic, formaldehyde-free polymer-based admixture, modified in aqueous solution; a surfactant admixture configured to entrain micro air bubbles in concrete; and an organic polymer comprising hydrophilic groups for increasing the viscosity of the mixture.
Claims14
A method for realizing a dam or other massive structure, the method comprising the steps of:
- batching of massive self-compacting concrete (MSCC) comprising a concrete mix comprising:
- cementitious content comprising fly ash, the cementitious content less than 250 kg/m3;
- dirty sand comprising between 3% and 15% fine aggregates;
- water content between 150 l/m3 and 250 l/m3;
- and
- a chemical admixture comprising one or more components selected from the following:
- an acrylic, formaldehyde-free polymer-based admixture, modified in aqueous solution;
- a surfactant admixture configured to entrain micro air bubbles in concrete;
- and
- an organic polymer comprising hydrophilic groups for increasing the viscosity of the mixture;
- spreading the MSCC by placing it in one continuous lift across the entire surface of the dam or other massive structure;
- and
- waiting for self-compacting of the MSCC.
Dependencies are inferred from the claim text.