GABBRO AGGREGATES
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A dense, dark intrusive igneous rock known for superior strength, toughness, and exceptional wear resistance. The ultimate coarse aggregate for high-grade asphalt, high-strength concrete, and heavy infrastructure.
Gabbro Aggregates Overview
Gabbro is a coarse-grained, dark-colored intrusive igneous rock, chemically equivalent to basalt. Formed by the slow cooling of magnesium- and iron-rich magma deep beneath the Earth's surface, it develops a highly interlocking crystalline structure that grants it phenomenal physical strength.
In the construction industry, Gabbro is widely regarded as one of the highest quality aggregates available. It possesses incredibly high compressive strength, an extremely low Aggregate Crushing Value (ACV), and superior resistance to abrasion and polishing. This makes it indispensable for constructing infrastructure that must endure extreme loads and continuous wear.
Furthermore, Gabbro exhibits an excellent affinity for bitumen, drastically reducing the risk of stripping in asphalt pavements. Whether utilized in highway road bases, airport runways, or marine breakwaters, our precisely graded Gabbro aggregates deliver unmatched longevity and structural integrity.
- Exceptional compressive strength and structural toughness
- Excellent skid resistance and anti-polishing properties for roads
- High resistance to chemical weathering and water absorption
- Creates incredibly durable, high-PSI concrete mixtures
- Perfectly angular, cubical grain shape for optimal interlocking
- Sourced and graded precisely for large-scale civil engineering
Chemical Composition
45 - 55%
14 - 18%
8 - 12%
8 - 12%
Infrastructure Applications
Asphalt & Road Surfacing
Provides superior skid resistance, resists rutting, and bonds perfectly with bitumen, making it the top choice for highways and airport runways.
High-Strength Concrete
Utilized as the primary coarse aggregate in demanding concrete applications like skyscraper foundations, bridges, and precast structures.
Railway Ballast
Its toughness and angularity allow it to lock together tightly under extreme dynamic loads, providing stable track beds for heavy freight and high-speed rail.
Marine & Coastal Defense
Due to its high density and low water absorption, large gabbro boulders and aggregates are ideal for breakwaters and seawall construction.
Technical Specifications
| Properties | Value |
|---|---|
| Rock Classification | Intrusive Igneous Rock (Mafic) |
| Color / Appearance | Dark grey to black angular stones |
| Specific Gravity | 2.8 - 3.1 g/cm³ (High Density) |
| Water Absorption | < 1.0% |
| Los Angeles Abrasion (LAA) | Typically < 15% (Extremely low wear) |