FIELD: petroleum processing and manufacture of building materials. SUBSTANCE: method consists in separating sludge into different-density phases: oil, oil- containing aqueous, and solid phases, followed by using each pf the phases as special additives for structural, building, and paintwork materials, particularly polymeric materials. Each phase is advantageously modified, for example with nontoxic diatomic phenols, amine compounds, and solid combustion fossil pyrolysis products. EFFECT: increased degree of utilization of all sludge components. 14 cl, 1 tbl, 6 ex
