3/8 Aggregate (Crushed Stone)
Overview:
3/8 aggregate, also known as crushed stone 3/8, is a finely graded type of gravel commonly used in construction, concrete production, and landscaping. Its small particle size makes it ideal for enhancing the strength and durability of concrete mixes, as well as providing a smooth finish for various applications.
Why You Should Use It:
- Enhanced Strength: Improves the load-bearing capacity of concrete.
- Excellent Drainage: Allows water to pass through, reducing water retention.
- High Durability: Resistant to weathering and heavy loads.
- Versatile Applications: Suitable for concrete, asphalt, landscaping, and drainage.
- Consistent Particle Size: Ensures uniform mixing and compacting.
Key Features:
| Property | Description |
|---|---|
| Size | 3/8 inch (9.5 mm) |
| Color | Gray, white, or beige |
| Material Composition | Crushed limestone, granite, or basalt |
| Moisture Content | Low |
| Compaction Capability | High |
Uses:
- Concrete Mixes: Enhances structural integrity and reduces shrinkage.
- Asphalt Production: Provides a stable base for paving materials.
- Drainage Systems: Helps prevent water accumulation in construction sites.
- Landscaping: Used in pathways, garden beds, and decorative areas.
- Backfilling & Road Base: Fills voids and strengthens road foundations.
Density & Composition:
| Factor | Value |
|---|---|
| Bulk Density | 1400–1600 kg/m³ |
| Crushing Strength | 100–250 MPa |
| Water Absorption | ≤ 2% |
| Porosity | 15%–30% |
Case Studies:
- Residential Driveways: Used for stable and durable driveway surfaces.
- Stormwater Management: Applied in drainage solutions to prevent flooding.
- Concrete Manufacturing: Enhances the longevity and performance of concrete structures.
Application Recommendations:
- Proper Mixing Ratio: Combine with cement and sand for optimal concrete strength.
- Gradual Water Addition: Prevents excessive absorption and maintains workability.
- Compact Before Use: Ensures stability and prevents shifting over time.
- Regular Maintenance: Helps retain its performance in drainage and landscaping.
