METHOD OF DESIGNING CEMENT MIXTURE (VARIANTS), METHOD OF PREPARING FINAL CEMENT MIX, METHOD OF PREPARING FINAL DRY CEMENT MIX, CEMENT MEX, AND FINAL CEMENT MIX Russian patent published in 1999 - IPC

FIELD: building industry. SUBSTANCE: method is used for determining proportions of sand, cement, coarse-grain filler, water, fly ash, agents for trapping air and fillers to prepare concrete mix having desired strength and settling at minimum cost. Optimization process includes combination of mathematical models which characterize individual components. Process also optimizes useful life of cement mixture. EFFECT: desired characteristics of strength, settling and useful life. 37 cl, 36 dwg