FIELD: manufacture of building materials. SUBSTANCE: invention relates to production of composites based on sulfur cement for manufacturing building materials. Homogeneous solution of sulfur (90-98%) and modifier (2-10%) is treated for 5 to 20 s by rotating electromagnetic field in velocity layer apparatus at 140-150 C. Modifier is petroleum residue, for example mazut used with no preliminary treatment or preliminarily irradiated for 10 to 60 s by rotating electromagnetic field at 300-350 C. EFFECT: intensified process and simplified technology. 3 cl, 3 ex
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