FIELD: manufacture of building materials.
SUBSTANCE: object of invention is testing materials for use in designing compositions of artificial building conglomerates and any-nature composites. Method of invention comprises layer-by-layer filling of volume unit with coarse-grain and fine-grain fractions, determining average size of grains of coarse-grain fraction d1 and that of fine-grain fraction d2, d2/d1 ratio, coarse-grain and fine-grain fraction volumes V1 and V2, m3, respectively, consumed per unit mixture volume (1 m3), coarse-grain fraction free volume value Vn1, coarse-grain fraction volume mass γ1, and degree of diluting coarse-grain fraction with fine-grain fraction α calculated by formula: α = γ1/V1. When d2/d1 > 0.155, degree of compaction of coarse-grain fraction with fine-grain fraction Y is calculated using formula: V = [α(V2-1)+1]/Vn1. Invention makes it possible to determine degree of compaction of one-type fractions with other-type fractions taking into account quantitative interrelations between fraction ratios, between fraction ratios and volume of mixture being formed, between volume of mixture and coarse-grain fraction free volume value, between all them and above-indicated dilution value.
EFFECT: enabled regulation of volume mass and preparation of materials with desired volume-mass characteristics.
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