GSB (granular sub-base) in the CPWD DSR

Road work's GSB is written out as "granular sub-base" in the CPWD Civil DSR. These are those items.

CPWD Civil DSR 2023 (3)

• 16.78.1 Construction of granular sub-base by providing close graded Material conforming… — With material conforming to Grade-I (size range 75 mm to 0.075 mm) having CBR Value-30 ₹2,784 / cum
• 16.78.2 Construction of granular sub-base by providing close graded Material conforming… — With material conforming to Grade-II (size range 53 mm to 0.075 mm) having CBR Value-25 ₹2,924.85 / cum
• 16.78.3 Construction of granular sub-base by providing close graded Material conforming… — With material conforming to Grade-III(size range 26.5 mm to 0.075 mm) having CBR Value-20 ₹2,808.55 / cum