Aggregate GSB

Description

**Granular Sub Base (GSB) Aggregates** are an essential component in road construction, forming the foundation layer for highways, roads, and runways. GSB refers to the layer of crushed stone or gravel placed beneath the road’s surface course and bitumen layers. It acts as a supportive layer, providing strength and stability to the overall pavement structure.

### Key Features of GSB Aggregates:
1. **Strength and Durability**: GSB aggregates are composed of crushed stones and gravel, which provide the required strength to the road foundation, ensuring long-lasting performance.
2. **Load-Bearing Capacity**: They help in distributing the load from the upper layers to the subgrade, improving the overall load-bearing capacity of the pavement.
3. **Water Drainage**: The porous nature of GSB aggregates ensures efficient drainage, preventing water accumulation under the pavement that could lead to erosion or weakening.
4. **Resistance to Deformation**: GSB materials provide excellent resistance to deformation caused by traffic loads, minimizing settlement or rutting of the road surface.
5. **Ease of Compaction**: These aggregates are easy to compact, resulting in a firm base layer that offers high stability for subsequent construction layers.

### Applications of GSB Aggregates:
– **Road Construction**: Used as the foundational layer in highway, urban road, and rural road construction projects.
– **Airport Runways**: GSB aggregates form the sub-base for airport runways, ensuring a strong and level surface for aircraft operations.
– **Industrial Yards and Parking Lots**: They provide a stable base for heavy vehicle operations in industrial yards and parking areas.
– **Railway Tracks**: GSB is also used as a sub-layer for laying railway tracks to ensure proper load distribution and stability.