FIELD: manufacture of building materials.
SUBSTANCE: object of invention is testing materials for use in designing compositions of artificial building conglomerates and composites based on organic and inorganic binders. Method of invention involves screen fractionation to determine average size of grains of coarse-grain fraction d1, mm, and fine-grain fraction d2, mm, ratio of grain sizes d2/d1. Degree of compaction Y at d2/d1 > 0.155 and degree of filling Y at d2/d1 < 0.155 are determined from formula Y = 1 - d2/d1.
EFFECT: enabled determining values of degree of compaction and filling of coarse-grain fractions with fine-grain ones without experimental trials associated with preparation of loose mixtures.
4 ex
