bids are invited for reinforcement- main vertical bars 6.0mm dia round ms bars - 4 nos. stirrups shall be of 6 mm dia round ms bars 20 cms cetre to centre 11 nos. stirrups for 2.0mtrs. pole hooks for fixing barbed wire made of 6 mm dia ms bar 6 nos. hooks be provided for fixing barbed wire in 2.0 mt. long poles top hook should be provided 100mm below the top of pole yes bottom hook should be provided 500 mm above the bottom of the pole yes the central distance between the top and bottom hooks shall be equally divided to fix remaining hooks yes top section of pole for size 2.0 mtrs, : 8 cms x 8 cms square bottom section of poles for size 2.0 mtrs : 10 cms x 10 cms, square cement concrete mix ratio 1:2:4 ( cement : sand : metal or coarse aggregate ) nominal size fine / coarse aggregate 12.5 / 20 mm sand used should be free from clay & salt yes grade for concrete mix m-15 of is:456 manufacturing in order to ensure desired compressive strength, rcc fencing poles should be compacted with the help of plat form vibrator surface shall be uniform and free from voids yes concrete cover over the reinforcement 16 millimeter marking on fence poles the fence posts shall be clearly and indelibly marked with the following particulars either during or after manufacture, but before testing, at a position so as to be easily read after erection in position: