Prepare a detailed estimate of a reinforced concrete slab 12.5 cm thick for the roof of 3.5 metres clear span having 15 cm bearing over the walls. The main reinforcement bars 12 mm dia spaced 10 cm c .to c. and the distribution bars are 10 mm dia spaced 20 cm c. to c. Alternate main bars are bent up at 1/6 of span from the support. Draw also a cross section of the slab. 7. Evaluate the quantities of different items required to construct a R.C.C column with foundation footing from the given drawing. QUANTITIES 10cm Bend- 3.30m 60cm 50cm 75cm L 25cm 30cm Dia- 10cm .C.C. Beam Vertical Bars 6Nos. 16mm Dia -Ties 10mm Dia 15cm Pitch 4cm Cover P.L. 45cm G.L Dowel Bars 35cm sq. (6 Nos. 16mm Dia 15cm Bend 5 cm Cover 2m sq SECTION Bcm c.c. 4 1:48 12mm Bars 15cm c/c Bothway 30cm Dia.- 35cm 35cm 2.00m PLAN 2.00m