Details: rcc benches 110.17:providing and placing of precast rcc benches (chair bench with back rest) using cement concrete grade m-30 consisting of 2 no. l-shaped base support of thickness 100 mm having back height 1000mm, front height 450mm and base width 620mm having 5 no. of rcc planks 1500x100x50 mm and one number plank of size 1500x200x50mm in the approved colour and shade; the minimum weight of ms reinforcement bar in the base support will be 3.4 kg having 4 nos. 8 mm dia m.s. bar distributed along the section and periphery of the legs with sufficient no of 4 mm dia ms stirrups. each base support will have 3 nos. 12mm dia (2 nos. 40mm and one number 65 mm long) galvanised coupling nuts welded suitably to the main reinforcement at appropriate locations so as to receive bolts for fixing of seats of concrete planks on base support and 3 holes to received carriage bolts for fixing back rest planks. the minimum weight of ms reinforcement bar in the plank of 200 mm wide will be 4.4kg and of 10
Sector: Municipality