METHOD OF DETERMINATION OF PACKABILITY OF CEMENT-SAND MIXTURE Russian patent published in 1994 - IPC

FIELD: production of building materials. SUBSTANCE: thickness of cement slurry is determined. Structural viscosity of cement slurry is determined, taking into account normal thickness of cement slurry. Real cement density and real sand density are determined in vibroconsolidated condition in cement slurry. Total surface of grains, being larger than 0.31 mm, is determined, as well as volume of cement slurry in one cubic meter of cement-sand mixture. Then space between adsorbed films of cement slurry is defined according to the relation onto the surface of grains 0.31 mm. Packability of cement-sand mixture is calculated by the formula. EFFECT: improved reliability; improved precision. 2 tbl