US 12,071,374 B2
Concrete mix design and method for realizing dam or other massive structure by using the concrete mix design
Federico Furlani, Minerbe (IT); Christopher Hicks, Minerbe (IT); and Michele Furlani, Minerbe (IT)
Assigned to SIMEM S.P.A., Minerbe (IT)
Appl. No. 17/611,853
Filed by SIMEM S.p.A., Minerbe (IT)
PCT Filed May 15, 2020, PCT No. PCT/IB2020/054631
§ 371(c)(1), (2) Date Nov. 16, 2021,
PCT Pub. No. WO2020/234724, PCT Pub. Date Nov. 26, 2020.
Claims priority of provisional application 62/849,389, filed on May 17, 2019.
Prior Publication US 2022/0234951 A1, Jul. 28, 2022
Int. Cl. C04B 18/08 (2006.01); C04B 14/06 (2006.01); C04B 103/30 (2006.01); C04B 103/44 (2006.01); C04B 111/00 (2006.01)
CPC C04B 18/08 (2013.01) [C04B 14/06 (2013.01); C04B 2103/304 (2013.01); C04B 2103/44 (2013.01); C04B 2111/00103 (2013.01)] 14 Claims
 
1. 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.