TECHNOLOGY FOR PRODUCING FUNCTIONAL MATERIALS FOR CONSTRUCTION COMPOSITES BASED ON PETROLEUM AND PETROCHEMICAL WASTES

This article analyzes contemporary technological approaches to converting petroleum and petrochemical wastes into functional construction materials. The study focuses on oil sludge, pyrolysis residues from oil-based drilling wastes, and multi-source petrochemical wastes used as secondary raw materials for ceramics, ceramsite, and cement-based composites. An analysis of studies published in 2024–2026 demonstrates that effective utilization requires more than simply incorporating waste into construction mixtures. It requires physicochemical characterization, pretreatment, compositional optimization, controlled thermal processing, microstructural characterization, and assessment of heavy-metal immobilization. Recent studies have demonstrated the feasibility of producing high-strength ceramsite, ceramic materials, ceramic proppants, and lightweight construction products from petroleum-related wastes. Research on oily-sludge pyrolysis residue incorporated into cement-based materials has also demonstrated effects on workability, paste densification, pore refinement, and later-age strength. The article systematizes an integrated technological approach ranging from waste characterization and pretreatment to material performance and environmental safety assessment.