Granular Sub-base (GSB)
The work of Granular Sub-base (GSB) involves laying and compacting well-graded material over a prepared subgrade. This layer forms a strong foundation for upper pavement layers and helps in distributing traffic loads evenly.
Highway Construction Methodology
Step-by-step construction methodology of all highway layers and activities — Subgrade, GSB, WMM, DBM, and BC — explained as per MoRTH 5th Revision with testing requirements, quality control, and layer-wise procedures.
