Rate Contract for Supply and Installation Pre Cast RCC benches in different parks under the Jurisdiction of SDMC

Rate Contract for Supply & Installation Pre Cast RCC benches in different parks under the Jurisdiction of SDMC

Supply & Installation of pre-Cast RCC benches (chair bench with back Rest) using Cement Concrete 1:1.5:3 ( 1 cement: 1.5 coarse sand : 3 stone aggregate 12.5 mm nominal size) consisting of 2 No. L-Shaped base support of thickness 100 mm having back height 1000 mm, front height 450mm and base width 620mm having 5 No. of RCC planks 1500x100x50 mm and one 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) galvanized couplong nuts welded suitable 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 receive carriage bolts for fixing back rest planks. The minimum weight of MS reinforcement bar in the plank of 200mm wide will be 4.4 kg. and of 100mm wide 2.9 kg. All the RCC planks will have 2 holes of 14mm dia at appropriate location, so as to receive 12mm dia galvanized bolts for fixing on the base support. One of the planks of size 1500x100x50mm shall be engraved in the centre at the back with letter SDMC, 2 planks of size 1500x100x50mm and one plank of size 1500x200x50mm will be bolted to coupling nuts provided in the base support on both sides with 2 number of 12 mm dia and 65mm long galvanized steel CSK bolts and one Eva Washer for each bolt to form a seat; 3 planks of size 1500x100x50mm will be bolted to coupling nuts provided in both the base support to form back rest with 6 nos. (Two Nos. in each Plank) half threaded carriage bolts and nuts of size 165mm long and 8 mm dia with Eva and steel washers. The holes visible at the back side of the bench will be sealed with cement mortar after assembling. Side edges of all the planks shall be painted with acrylic base paint of approved colour and shade and front portion of seating and back rest planks shall be polished to give glossy finish complete as per direction of Dy. Director (Horticulture)/ SDMC.

Providing and fixing of precast RCC chair bench with arm rest each bench consists of 2 no. L-shaped base support in grey cement color (thickness 80mmx90mm, 890 mm back height; 450 mm front height with base width 690 mm) and 1 no. reinforced concrete plank in red color of size 1500 mm x 400 mm x 50 mm total height of the bench 890 mm manufactured using cement concrete 1:1.5:3 (1cement 1.5 coarse sand: 3 stone aggregate 12.5 mm nominal size) using vibro compaction process reinforced suitable to promote long use and to prevent damage during handling. Transportation &erection, all parts are joined together with galvanised nuts and bolts of suitable size and all bolts are sealed after assembly, bench top and back planks are treated with special anti-corrosive water proof coating so as to make surface glossy and water proof and as per direction of Engineer-in-Charge. Size: Length 1500 mm Back Height 890 mm Base support 690 mm Front height 450 mm Seat – 2 Nos. Planks of size 1500 mm x 400 mm x 50 mm And 1 No. Planks of size 1500 mm x 425 mm x 50 mm Total length of support & arm – 2.75m in/c curved portion x-sectional area = 0.08 x 0.09 = 0.0072 sqm.Total length in/c curves Qty of RCC = 2 x 0.0072 x 2.75m = 0.0396 cum

M.S. SIGN BOARD Providing and fixing made of MS sheet 90X60cm. thick with frame of MS angle 50X50X6mm two diagonal braces at the back of the sheet of MS flat 40X6mm, total height of the board above ground level 2.40m, length of legs below ground 0.30m embedded in CC block 1:2:4 (1cement: 2 coarse sand : 4 graded stone agg. 20mm nominal size) 30X30X45 cm. including excavation and removal of surplus earth within 50m. lead Applying priming coat of approved steel primer, painting with synthetic enamel paint of approved quality and lettering with enamel paint of approved color (one side) as per drawing / direction of Engineer/Work-in-charge.

Greenz

ARZOO CONCRETE PRODUCT