tender for sbm 2021-22 chamber & paver block work under zone-05- 1 all kinds of soil 2 1:3:6 or richer mix 3 construction of granular sub-base by providing coarse graded material ( cbr>30 ) , spreading in uniform layers with motor 4 construction of embankment / sub grade / earth shoulders, as per clause 305 & its sub-clauses, where required but with app 5 providing and laying 60 mm thick factory made cement concrete interlocking paver block of m -30 grade made by block mak 6 providing and laying cement concrete grade m-10 nominal mix 1:3:6 with40 mm graded crushed stone aggregate, spreading 7 providing and laying cement concrete grade m-20 ( nominal mix 1:1.5:3 ) with 20 mm graded crushed stone aggregate, mixing