REPAIRS AND CLEANING OF SERVICE OVERHEAD TANKS (PVC) AND REPAIRS OF DRAINAGE AND MISC B/R WORKS FOR TECHNICAL AREA AT AF STATION BARRACKPORE UNDER GE (AF) BARRACKPORE

Amount

Material and labour for seven stage cleaning and sterilization of inside the over head PVC service tank of capacity exc 250 litres but not exc 500 litres through bacteriological treatment by using TERBACG10, TERBAC G5, TERBACG- 65 and ULTRA VOILET RAY complete all as specified and directed. Steps for seven stages are as under :- First Stage- To drain out the water by using exit valve or high capacity dewatering system. Second Stage- Cleaning all the algae formation inside the tank by using TERBACG10 a laboratory tested branded chemical of the company and scrubbing the walls of the tanks. Third Stage- Fresh water cleaning by high speed jet pump. Fourth Stage- First bacteria screening is sterilization by using TERBAC-G5 a Govt laboratary certified branded halogen compound. Fifth Stage- Cleaning the floor of water tank by heavy duty industrial vaccum cleaner. Sixth Stage- Second bacteria screening and sterilizing method by using ultra voilet ray within the tank and kills all suspended bacteria. Seventh stage- Cleaning and third bacteria screening is to sterlize the floor of the water tank by using laboratory certified, branded strong oxidizing agent TERBAC-G65.

Note :- (a) Work will be carried through specialized agency from one of the below given makes. (b) Company will submit Govt laboratory test certificate of TERBAC-G5, TERBAC-G65, fix the sticker mentioning the date of cleaning & name of site and also provide, certificate confirming the completion of sterlization of watr tanks mentioning the name of station and date of cleaning. All the cleaning & sterlization staffs should be under accidental insurance coverage. (c) Any damage occured to the tank during the process of cleaning the tank shall be repaired without any extra cost. (d) The quoted rate shall include for guarantee of a period of One year from the certified date of cleaning. (e) All debris and waste material obtained during cleaning of tank shall be disposed at a location decided by Engineer -in- Charge without any extra cost. Authorised agency:- Rays cleantech / Inus watertech / Satya enterprises.

All as per Item No 1.00 here-in-before but for 1000 litres over head PVC service tank and -ditto-.

Dismantling of floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises complete all as specified and directed.

Demolition of brick work or stone boulder masonry, built in cement mortar including all quoins, arches, pillars etc. including removing of unserviciable bricks and debris from site complete all as specified and directed.

Taking down cement plaster of any description built in cement mortar on brick or stone walls etc including racking out joints, hacking for key, scrubbing down with water etc. and removing debrish from site complete all as specified and directed.

Demolition of cement concrete (un-reinforced) in ground floor and pavings n.exc. 15cm thickness (below or above ground level) complete all as specified and directed.

Demolition and breaking up drain pipes of 110 mm bore (salt glazed stoneware, PVC, AC or reinforced concrete) set in cement mortar including PCC bedding complete all as specified and directed.

Demolition and breaking up drain pipes of 160 mm bore (salt glazed stoneware, PVC, AC or reinforced concrete) set in cement mortar including PCC bedding complete all as specified and directed.

Material and labour for PCC (1:3:6) type C2 (using 40 mm graded stone aggregate ) as in foundation, filling and mass concrete complete all as specified and directed.

Material and labour for PCC (1:3:6) type C2 (using 40 mm graded stone aggregate ) as in surface channels and drains complete all as specified and directed.

Extra for forming fair finished drain or channel 45 cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred /stopped ends etc complete all as specified and directed. Note:- Only inner girth shall be measured for payment.

Material and labour for precast RCC (1:2:4) type B1 (20 mm graded agregate) as in landings, cover slabs (for man holes etc.), chullha hoods, chajjas, water troughs, shelves and similar articles of any thickness and any size as required at site set jointed and pointed in cement mortar (1:4) including demolition of cement concrete (reinforced) of any description and reinforcement cut as required to facilitate demolition and removing debries from site of work complete all as specified and directed.

Material and labour for cement concrete (1:3:6) type C-2 (using 40 mm graded stone aggregate) as in bed to drain pipes of 110 mm bore including packing under and haunching against the sides of pipe after they are laid and tested complete all as specified and directed.

Material and labour for cement concrete (1:3:6) type C-2 (using 40 mm graded stone aggregate) as in bed to drain pipes of 160 mm bore including packing under and haunching against the sides of pipe after they are laid and tested complete all as specified and directed.

Material and labour for brick work with sub class `B` bricks, old size, straight or curved on plan exc 6m mean radius built in cement mortar (1:4) complete all as specified and directed.

Material and labour for mild steel TMT bar 10 mm dia and over cut to length bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

Material and labour for 25mm thick PCC (1:2:4) type B-0 (using 12.50mm graded stone aggregate) as in sub base of floor to receive tiles complete all as specified and directed.

Material and labour for ceramic, non skid coloured tiles (premium quality) 7 to 8mm thick (square/rectangular) area of each tile exceeding 0.11sqm but not exc. 0.18sqm as in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour of tiles laid over and including 15mm thick screed bed in cement mortar (1:6) complete all as specified and directed.

Material and labour for glazed ceramic tiles of size 300x200x7 mm / 450x350x7mm (premium quality) coloured in vertical surfaces such as riser of steps, skirting, dado and pillar set and jointed in neat cement slurry and pointed in white or coloured cement to match laid over and including 10mm thick cement plaster in cement mortar (1:4) complete all as specified and directed.

Material and labour for 15mm thick rendering in cement mortar (1:3) on other than fair faces of brick work or concrete surfaces and finished surface even and smooth without using extra cement as in wall complete all as specified and directed.

Material and labour for 15mm thick rendering on fair faces of brick work or concrete surfaces in cement mortar (1:3) and finish the surfaces even and smooth without using extra cement as in wall complete all as specified and directed.

Taking up or down 15 mm bore steel tubing and connections, including cleaning for refixing or removal from site complete all as specified and directed.

Refixing only 15 mm bore old steel tubing and connection in new or old position (wall,floor,ceiling etc) complete all as specified and directed.

Supply and fix 15 mm bore GI tubes (medium grade) with all fitting and fixed complete to walls and ceilings or laid in floors complete all as specified and directed.

Taking up or down 20 mm bore steel tubing and connections, including cleaning for re-fixing or removal from site complete all as specified and directed.

Refixing only 20 mm bore old steel tubing and connection in new or old position (wall,floor,ceiling etc) complete all as specified and directed.

Supply and fix 20 mm bore GI tubes (medium grade) with all fitting and fixed complete to walls and ceilings or laid in floors complete all as specified and directed.

Supply and fix in repair vitreous china white wash down water closet pan (pedestal pattern) with ‘P’ or ‘S’ trap, front or back inlet, fixing bolts and making all necessary connections including plastic water closet white seat cover complete as specified and directed.

Supply and fix in repair EWC seat cover and mild steel chromium plated or aluminised hinging device complete all as specified and directed.

Supply and fix in repair 75mm dia cast iron floor trap with grating including jointing to waste pipe in run lead for including CP grating cover with or without hole complete all as specified and directed.

Supply and fix in repair 75mm dia cast iron nahani trap with gratings including joining to waste pipe fixed in cement concrete type B1 (1:2:4) (using 20 mm graded stone aggregate) complete all as specified and directed.

Supply and fix in repair 32mm PVC flexible waste pipe 800mm long etc complete all asspecified and directed.

Supply and fix in repair low level flushing cistern of capacity 10 litre ISI marked complete with inlet ball valve, and handle including bracket, waste pipe complete all as specified and directed.

Supply and fix in repair PVC connection pipe 15 mm size with PTMT nuts of length 450 mm complete all as specified and directed.

Supply and fix 110 mm dia PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or under floor complete all as specified and directed.

Supply and fix 160 mm dia PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or under floor complete all as specified and directed.

Supply and fix in repair 125 / 110 mm size PVC (SWR) gully trap, setting and jointing with solvent cement complete all as specified and directed.

Supply and fix in repair 110mm bore PVC (SWR) pipes single socketed in any length with rubber ring joints etc fixed to walls complete all as specified and directed.

Supply and fix in repair 110mm bore PVC (SWR) branch piece (single 'Y') equal or unequal with access door complete all as specified and directed.

Supply and fix in repair 110 mm bore PVC (SWR) bends of any radius provided with access door complete all as speified and directed.

Supply and fix in repair 110mm bore PVC (SWR) vent cowl complete all as specified and directed.

Supply and fix in repair vitreous china squatting pan of ‘Orissa pattern’, size 580 mm x 440mm (white) with ‘P’ or ‘S’ trap, front or back inlet and foot rests, any pattern complete including provision of PCC bedding and connection to trap, flushing pipe, antisyphonage pipe, etc. including making good the disturbed floor complete all as specified and directed.

Supply and fix in repair vitreous china bowl urinal flat back, size of 465x355x265 mm white (minimum),with grating and union for discharge pipe (excluding flushing cistern, flush pipe and waste pipe) complete all as specified and directed.

BUSINESS SYNDICATE

M/S P K CONSTRUCTION

PIONEER

BANERJEE CONSTRUCTION

KUMAR ENTERPRISE

APOLLO TRADERS

Oenix and associates