METHOD OF DETERMINING DEGREE OF COMPACTION AND FILLING OF COARSE-GRAIN FRACTIONS WITH FINE-GRAIN ONES Russian patent published in 2005 - IPC

Abstract RU 2244300 C1

FIELD: manufacture of building materials.

SUBSTANCE: object of invention is testing materials for use in designing compositions of artificial building conglomerates and composites as well as in optimizing compositions. Method of invention involves screen fractionation to determine average size of grains of coarse-grain fraction d₁ and that of fine-grain fraction d₂, ratio of grain sizes d₂/d₁, and value of dilution of coarse-grain fraction with fine-grain fraction in terms of formula: α = [(d₁ + d₂)/d₁]³. If d₂/d₁ > 0.155, degree of compaction Y and, if d₂/d₁ < 0.155, degree of filling Y are found from formula Y = 2 -

EFFECT: reduced volume of laboratory tests and improved qualitative characteristics of calculated and prepared loose mixtures, for which regulation of desired properties of manufactured materials is ensured.

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RU 2 244 300 C1

Authors

Mironov V.A.

Golubev A.I.

Dates

2005-01-10—Published

2003-10-09—Filed