A well-graded granular material used as a foundational layer in road construction. Provides stability, drainage, and uniform load distribution beneath base courses.
Granular Sub-Base (GSB) is a well-graded granular material placed between the prepared subgrade and the base course in road and pavement construction. It plays a critical role in load distribution, drainage, and long-term pavement performance.
Engineered to provide a stable foundation layer that enhances pavement strength, drainage, and long-term performance.
GSB is produced from a controlled mix of crushed stone aggregates, sand, and fines, ensuring proper gradation and effective interlocking for structural stability.
Acts as a foundation layer that uniformly distributes traffic loads from the pavement to the subgrade, reducing stress and preventing deformation.
When compacted at optimum moisture content, GSB achieves high density with minimal voids, providing a firm and stable base.
The granular structure allows efficient drainage of water, preventing water accumulation and protecting upper pavement layers from moisture damage.
By providing strength, drainage, and uniform support, GSB significantly enhances the durability and service life of road pavements.
Well-graded aggregates resist lateral movement and rut formation under repeated traffic loads.
Manufactured and laid as per standard specifications, ensuring consistent quality and predictable performance across the entire pavement width.
Provides an ideal base for Wet Mix Macadam (WMM), Water Bound Macadam (WBM), and bituminous layers.
Used in road and highway construction, rural roads, industrial roads, airport pavements, service roads, and parking areas.
Engineered foundation layer material conforming to MoRTH standards, designed to provide stability, drainage, and long-term pavement performance.