DENSITY WHERE CONVENTIONAL
AGGREGATES AREN'T ENOUGH.
Hematite and Magnetite mineral aggregates engineered for civil and defense applications requiring elevated bulk density, volumetric mass efficiency, and high-energy gamma attenuation.
MAXIMIZING MASS WITHIN CONSTRAINED VOLUMES.
Standard civil concrete utilizes siliceous or calcareous aggregates achieving typical cured bulk densities between 2,200 and 2,400 kg/m³. By replacing conventional gravel with calibrated crystalline Hematite and Magnetite fractions, concrete density can be elevated up to 3,600 to 4,000+ kg/m³.
Prateek Minerals grades, washes, and custom-sizes high-specific-gravity aggregates for nuclear reactor dry shielding walls, medical radiotherapy linear accelerator (LINAC) vaults, elevator balancing assemblies, and offshore pipeline ballast coatings.
Product Specifications & Sizing Matrix
| Product Grade | Mineral Base | Target Sizing (PSD) | Specific Gravity | Primary Application |
|---|---|---|---|---|
| Hematite Coarse Aggregate | Hematite (Fe₂O₃) | 10mm – 25mm / 20mm – 40mm | 4.70 – 5.05 | Heavy concrete, shielding vaults, marine ballast |
| Hematite Fine Aggregate | Hematite (Fe₂O₃) | 0mm – 5mm (Heavy Sand) | 4.60 – 4.90 | Matrix void filling, radiation plaster, mortar |
| Magnetite Heavy Aggregate | Magnetite (Fe₃O₄) | 5mm – 20mm / Custom Cuts | 4.85 – 5.15 | Nuclear reactor shielding, dense counterweights |
| High-Density Hematite Powder | Micro-Milled Fe₂O₃ | 200 Mesh / 325 Mesh / D50 ~45μm | 4.80+ | Drilling mud weighting, friction linings, ballast polymers |
WHERE BULK DENSITY DRIVES INTEGRITY
Engineered mineral fractions meeting strict specific gravity bounds across demanding engineering sectors.
Nuclear Power Infrastructure
Calibrated capture efficiency for gamma rays. Supplied for project requirements associated with nuclear facilities including Rawatbhata, Narora, Kakrapar, and Kalpakkam.
Healthcare Radiotherapy Bunkers
Enables thinner structural concrete walls without sacrificing radiation containment in cancer hospital LINAC and cobalt radiotherapy facilities.
Heavy Equipment Counterweights
Provides maximum concentrated mass in compact volumes for mobile cranes, hydraulic excavators, agricultural tractor ballasts, and elevator assemblies.
Offshore & Marine Ballast
Subsea pipeline negative buoyancy aggregate coating and marine vessel stability ballasts with low moisture porosity and chemical resistance.
Specialised Industrial Grouting
Heavy-density grouting matrices and foundation beds engineered for high-vibration power turbines, forge presses, and industrial stamping machines.
Custom Density Fractionation
Client-specific particle size distributions (PSD) tailored to maximize aggregate interlocking, increase bulk density, and eliminate internal void pockets.
Have a Target Density or Mix Design?
Share your required specific gravity, target PSD sieve bounds, and destination.