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.
GSB evenly distributes surface wheel loads, reducing deformations and minimizing stress on the subgrade, enhancing durability.
The Granular Sub Base helps in strengthening the pavement structure, improving stability and resistance to deformation like rutting.
It acts as a reliable drainage layer, preventing moisture accumulation and preserving pavement integrity.
GSB disperses wheel load stresses, minimizing localized damage and improving overall pavement performance.
