Additional work in Supply and Construction of Ramp SS handrailer Reverse Osmosis water purifier and Ceramic roof tiles at school building vandikkara street ward no 33

Amount

Earthwork excavation in all soils and subsoils to full depth as may be directed except hardrock requiring blastering inclusive of all shoring, strutting and bailing out water wherever necessary and depositing the surplus earth with initial lead and lift

Supplying and filling m.sand watering Ramming including cost and conveyance of all materials and labour etc., complete as per standard specifications.

Plain Cement Concrete 1:4:8 mix (One cement four sand and eight metal) using 40mm ISS HBG metal including cost and conveyance of all materials and labour etc complete as per standard specifications.

Supplying fabricating and placing in position of MS/RTS rods including cutting, bending into shape, tying and placing the grill in position including cost of binding wire including cost and conveyance of all materials and labour etc., complete as per standard

Providing and errecting centering for sides and soffits of reinforced cement concrete slabs or plane surfaces including strutting upto 1m height using MS Sheets of size 0.9Mx0.6M of 10 kg. stiffened with MS angle of size25mmx25mmx3mm laid over silver oak joists of size 100mmx65mm at 90cm c/c and supported by props 90mm to 130mm dia spaced at 75cm c/c including cost and conveyance of all materials and labour etc., complete as per standard specifications For Lintel, Sunshade&Roof slab.

Providing and laying in position Standardised Concrete Mix M-20 Grade in accordance with IS 456 - 2000 using 20mm and down graded hard broken granite stone jelly for all RCC items of works with minimum cement contenet of 325Kg/ cum and maximum water cement ratio of 0.55 including admixture (Plasticiser / super plasticiser) in recommended proportions as per IS 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730Kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of sand, but excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the RCC floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers - The Coarse and Fine aggregates to be used should comply with the requiremnents of IS staandards. (No separate payment will be made by the Department for the excess usage of materials)

Brickwork in Cement Mortor 1:5 (One cement five sand) mix using country burnt of standard size 8 3/4"x4 1/4"x2 1/4" including cost and conveyance of all materials and labour etc complete as per standard specifications

Plastering in Cement Mortor 1:5 (One cement five sand) 12mm thick including cost and conveyance of all materials and labour etc., complete as per standard specifications.

Paving & Finishing the step & Pathway butten Tiles of size 300x300x6mm laid in cement mortor laid in cement mortor 1:2 10mm thick and pointing with white cement using 0.4kg / M2 including finishing the joint and pointing flush with tile surface etc., complete as per standard specifications.

Paving the Top of roof with Solar refelective ceramic tiles of size 305 x 305 x 7mm thick of approved quality and colour laid in Cement mortar 1:3 (One cement and three M-Sand) 12mm thick and pointed with tile grout (Nitotile Grout or equivalent) and cement in the ratio of 1:3 for joint, curing etc., complete complying with standard specification and as directed by the departmental officers. (The make and brand of the tiles should be got approved by the Executive Engineer before use on works)

White washing two coats with freshly burnt shell lime white in colour in all floors including cost of lime and other materials brushes scaffolding charges etc.complete complying with standard specification and as directed by Engineer incharge.

Painting two colour over cement plasted surface using cement paint of approved quality and colour include cost and conveyance of all facilities and labour etc.,

Supplying and filling the basement with Good Earth filling in layers of not more than 15cm thick well rammed watered and compacted - etc., complete complying with standard specification.

Providing and fixing SS Hand Rail made out of SS 304 grade 50.80mm dia stainless steel tube of 1.60mm thick will be provided with tubular supports made of SS304 grade stainless steel tubes 0f 25.4mm dia welded to the railing. The supports will be grouted and provided with a 3.00mm thick circular base plate of SS 304 grade stainless steel as per the details shown in the drawing and as directed. The rate shall include for grouting with concrete in to necessary supporting arrangements of handrail in floor, welding the base cup of the post onto slab reinforcement, polishing, buffing and protecting the handrail surface etc., complete as directed by the departmental officers etc.

Supplying and erecting in position of following liters capacity Industrial Model Reverse Osmosis Water-cum-Purifier to deliver Potable Water with World Health Organisation (WHO) Standards with following accessories. (a) MS Skid - 1 No. (b) Media 11054 No. Vessel with 20 nb Multiport Valve (with Media Pubble and Fine Sand and Activated Carbon Filling) set (c) Feed Pump 0.50 HP – 1 No. (d) Vertical Pump 2-9, 2.00 HP / Single Phase – 1 No. (e) Membrane 40 x 40 filmtech (or) equilaents / Osmonic (USA) - 1 No. and Membrane Pressure Vessel 40 x 40 -1 No. & Pressure Gauge - 2 Nos. (f) Flow Meter - 1 No. 20” Filter with Housing - 1 No., Low Pressure Switch - 1 No., Level Switch - 1 No. & Necessary CPVC Pipes and Fittings. The system shall be provide with Two Panel Control System with necessary Stainless Valves and Fittings and Float Control etc. The rate should be inclusive of all civil works, wherever necessary to install the System in position and intact.

BABU PARI (BID ID -1429539)