METHOD FOR PREPARATION OF CONCRETE MIX Russian patent published in 1995 - IPC

FIELD: production of concrete mixes. SUBSTANCE: method involves preliminary processing of 3.45-46.15 wt.-% of cement jointly with superplasticizer introduced in the amount of 2.5-20% of the mass of cement, under a mechanical action of 30-120 W per kilogram of the treated mix within 20-3,6·10⁴ s followed by mixing with the remaining cement, fillers, and water. Power expenditures for treatment of 1 m³ of concrete mix are reduced, the plasticizer consumption diminishes by 53.85-96.55 wt.-% with unchanged strength of concrete and the total cement consumption. EFFECT: reduced consumption of superplasticizer and power expenditures while retaining the same strength of concrete and consumption of cement. 2 tbl