Granular Sub Base (GSB) is a fundamental component used in road construction, serving as a sub-base layer. Whether sourced naturally or created through artificial means, GSB consists of crushed aggregates that are utilized in granular form. Positioned above the subgrade layer and below the base layer, this essential layer is commonly referred to as the granular subbase.
Load Distribution and Prevention of Deformation: GSB evenly distributes surface wheel loads, reducing deformations and minimizing stress on the subgrade, enhancing durability.
Enhanced Pavement Strength and Stability: The Granular Sub Base helps in strengthening the pavement structure, improving stability and resistance to deformation like rutting.
Effective Drainage: It acts as a reliable drainage layer, preventing moisture accumulation and preserving pavement integrity.
Stress Dispersion: GSB disperses wheel load stresses, minimizing localized damage and improving overall pavement performance.