Heavy aggregates are specialized materials used in concrete to enhance its density and shielding properties, particularly valuable in constructions requiring radiation shielding such as nuclear reactors and X-ray facilities. These aggregates are typically made from materials like barite, magnetite, steel, and other high-density minerals. Their primary function is to increase the mass of concrete, thus improving its ability to absorb and block radiation and noise. The use of heavy aggregates is crucial under severe environmental conditions where traditional lightweight aggregates might not provide sufficient protection against external factors.