Crushed stone, commonly known as batu split, is one of the most important aggregate materials used in modern construction.
It provides strength, stability, and durability to various building structures. Here are the key functions of crushed stone in construction.
1. Main Aggregate for Concrete
Crushed stone is a primary ingredient in concrete, along with:
- Cement
- Sand
- Water
In this mixture, batu split provides:
- Strength
- Volume
- Stability
Concrete made with high-quality crushed stone becomes more durable and resistant to pressure.
2. Base Layer for Roads and Pavements
One of the biggest uses of crushed stone is as a foundation layer for:
- Roads
- Highways
- Driveways
- Sidewalks
- Parking lots
Its compact, interlocking structure helps roads stay strong and not easily sink or crack.
3. Foundation for Buildings
Batu split is often placed under building foundations to create a stable, solid base. This helps:
- Improve load distribution
- Prevent foundation shifting
- Support heavy structures
- Enhance drainage under the building
A strong foundation always begins with the right aggregate.
4. Drainage and Water Flow Control
Crushed stone has excellent drainage properties. It allows water to flow through easily, making it ideal for:
- Septic systems
- Drainage trenches
- French drains
- Retaining wall backfilling
- Garden and landscape drainage
Proper drainage prevents flooding and soil erosion.
5. Asphalt Production
Crushed stone is a main component of asphalt used for road construction. It gives asphalt:
- Strength
- Grip
- Durability
Good-quality batu split ensures smoother and longer-lasting roads.
6. Railway Track Support
Railway tracks are built on a layer of crushed stone called ballast. This stone:
- Holds rail tracks in place
- Absorbs vibration
- Improves drainage
- Prevents track shifting
Without this layer, trains wouldn’t run smoothly or safely.
7. Landscaping and Decorative Use
Beyond construction, crushed stone is also used in:
- Garden pathways
- Rock gardens
- Pond decoration
- Outdoor flooring
It provides a clean, neat, and natural appearance.
Conclusion
Crushed stone plays a vital role in construction, from forming strong concrete to supporting roads and improving drainage systems. Its durability and versatility make it one of the most essential materials in building projects of all sizes.
