tender for materials used in tree planting, reinforced cement concrete fencing poles height 2.0m (type straight length - 2.00 m demensions - bottom 10x10 cm square, top 8x8 cm square cement concrete mix- cement, sand and metal ratio 1:2:4, with 12.5 nominal size coarse aggregate, sand used should be free from clay and salt, concrete mix shall be conforming to grade m-15 of is:456:2000 reinforcement - 4 round vertical bars of 6 mm diameter, 11 no of stirrups of 6 mm diameter round ms bars 20 cm center to centre. hooks- 5 no. bottom hook should be provided 60 cm above the bottom of the pole, second at 82.5 cm, third hook at 112.5 cm, fourth hook at 150 cm, top and fifth hook at 195 cm from bottom. maufacturing - in order to ensure desired compressive strength, reinforced cement concrete fencing poles should be compacted with the help of plant form vibrator. surface should be uniform and free from voids. the concrete cover over the reinforcement should not be less than 1.5 cm)