REPAIR MAINT OF SEWAGE LINE, SEPTIC TANK MANHOLE AND CLEANING WORK AND REPAIR TO DRAIN IN NEW CANTT UNDER GE GANGTOK

Amount

Excavation in trenches not exc. 1.5 metre wide and not exc. 1.5 metre in depth and getting out as in soft/loose soil for foundation etc. complete all as specified and as directed.

All as per item no 1 but for each additional 1.5m or part thereof in depth beyond the first 1.50 m complete all as specified and as directed.

Excavation over areas,n.exc 1.5m deep and getting out in soft/loose soil complete all as specified and as directed.

All as per item no 3 but for each additional 1.5m or part thereof in depth beyond the first 1.50 m complete all as specified and as directed.

Returning, Filling in, including Spreading, Levelling, Watering and Well Ramming in Layers not exc. 25 Cm in thick as in Soft/Loose Soils complete all as specified and as directed.

Removing surplus soils to a distance not exceeding 50 mtr and deposting where directed at a level not exc. 1.5 mtr above the starting point complete all as specified and as directed.

Demolition of precast block masonry or precast concrete article built in cement mortar complete all as specified and as directed.

Demolition of brick work or stone / boulder masonary, built in cement mortar including all quoins, arches, pillare, etc but exclusing ashlar facings, dressed stones work and precast concrete articles complete all as directed.

Demolition of reinforced cement concrete of any description and in any position such as pre-cast manhole cover or cover slab of septic tanks etc (reinforcement cut as required to facilitate demolition) complete all s directed by the Engr-in-Charge.

Demolition / Dismantling and breaking up of drain pipes (AC or PVC or SWR) 110MM bore (Internal), set in cement mortar all as directed by the Engr-in-Charge.

Demolition /Dismantling and breaking up of drain pipes (Salt glaze stone ware or reinforced cement concrete) 150mm bore (Internal), set in cement mortar including taking out from trenches and removing from site all as directed by the Engr-in-Charge.

Demolition of cement concrete (un-reinforced) of any description and in any position not specifically provided for complete all as directed by the Engr-in-Charge.

Taking down rainwater pipes (any size or pattern) including all fittings, heads, shoes, bends,swan necks etc including cleaning or refixing or removal to store (measured overall as fixed along the centre line over fittings and accessories) complete all as specified and directed by the Engr-in-Charge.

Taking down cement plaster on brick or stone walls or concrete surface, including racking out joints, hacking for key, scrubbing down with water etc complete all as specified and directed by the Engr - in- Charge.

Material & labour for precast PCC 1:3;6 type C1 (by using 20mm graded stone aggregate) block masinry with solid blocks, exc 10cm in width and setting in CM 1:6 complete all as directed by the Engr -in- Charge.

Material & labour for precast RCC 1:2:4 type B-1 (using 20mm graded stone aggregate) s in manhole covers etc including necessary form work and set in CM 1:4 complete all as specified and as directed. NOTE : Reinforecement shall be measured and paid separately

Material & labour for RCC (1:2:4), type B- 1 (using 20mm graded stone aggregate) (nominal mix) as in cover slab of septic tank, slabs supported on walls, beams & columns etc complete all as specified and as directed.

M&L for RCC (1:2:4), type B-1 (using 20mm graded stone aggregate) (nominal mix) as in walls, retaining walls, manhole wall, ballast walls and the like any thickness above top of fottings including attached pilasters and buttresses etc complete all as specified and as directed.

M&L for use and waste of form work to soffits of suspended slab such as cover slab, roof slabs, floor slabs, landing and similar works exceeding 200mm thick for flat fair finished surfaces of concerete complete all as specified and as directed.

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

Material & labour for Mild Steel TMT bars 6mm to 8mm dia 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 & as directed.

Material & labour for PCC (1:3:6), type C-2 (using 40mm graded stone aggregate ) as in foundations, filling and mass concrete complete all as specified & as directed.

Material & labour for PCC (1:3:6) type C-1 (using 20mm graded stone aggrgate ) as in coping including necessary form work complete all as specified & as directed.

Material & labour for stone walling of random rubble, uncoursed, well bonded, bedded and solidly hearted, built in cement mortar (1:6) including brought up to courses complete all as specified and as directed by the Engr-in-Charge.

All as per item No 24 here-in-before but except stone. NOTE : Stone buolders obtained from item No 8 here-in-before shall be re-used.

M&L for hand packing (any thickness) at back of retaining wall with broken stone or boulders and raising (or lowering) to required level complete,all as specified. NOTE :- Stone boulders obtained from item No 8 here - in - before shall be re-used.

M&L for 75mm thick PCC (1:3:6) type C2 (using 40mm graded stone aggregate) as in plinth protection; path/hard standing etc laid in bays/panels not exc 2.00 Sqm each including construction joints at suitable interval and each corner and filled with bituminous mastic filling (1 Part bitumen & 3 part sand) and finished the surface even and fair without using extra cement complete all as specified and as directed.

M&L for 100mm thick PCC 1:2:4 type C-2 (using 40mm graded stone aggregate) as in plinth protection path/hardstanding/steps/drain bed finished cement concrete surfaces fair and even including forming construction joint filled with CM (1:4 ) complete all as specified and as directed.

Material & labour for rendering 15mm thick in CM (1:3) with using water proofing compound @ of 3% by weight of cement on fair faces of birck or concrete surfaces, finished even & fair with using extra cement complete all as specified and as directed. NOTE : WPC shall be measured & paid separately

Material & labour for rendering 15mm thick in CM (1:4) on other than fair faces of brick or concrete surfaces, finished even & fair with using extra cement complete all as directed.

M & L for PCC 1:3:6 type C-2 (by using 40mm graded stone aggregate) as cin bed to drain pipes 150mm bore,including packing under and haunching against the sides of pipes after they are laid and tested, complete all as specified and directed by the Engr-in-Charge.

M & L for PCC 1:3:6 type C-2 (by using 40mm graded stone aggregate) as in bed to drain pipes 100mmbore, including packing under and haunching against the sides of pipes after they are laid and tested, complete all as specified and directed by the Engr-in-Charge.

Material & labour for cutting into existing manholes for connecting new drains (internal dia pipe 150mm), making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section ) in cement concrete 1:2:4 type B-1 smooth finished, and reforming benching all as directed by the Engr-in-Charge.

Material & labour for cutting into existing manholes for connecting new drains (internal dia pipe 100mm), making good to pipe and rendering, cutting out existing benching for and forming branch channel (1/2 round or 3/4 section) in cement concrete 1:2:4 type B-1 smooth finished, and reforming benching all as directed by the Engr-in-Charge.

Cleaning of blocked sewage line 150mm bore by rodding with using sectional sewer rod / flexible sewer rod / steel rod or split bamboo stick throughly from both sides between adjacent manholes / inspection chamber to manholes of any depth and size including well flushing with water till clear flow of sewage line is observed including taking out sludge & other foreign particles from manhole & pipe lines and buried in earth pits and spreading and including of bleaching powder & 1kg/sqm over the sludge before filling of earth in layer of 30 cm complete all as specified and to the entire satisfaction of Engr-in-Charge.

All as per ser item No 35 above but sewage line of 100/110mm bore. Notes for Ser item No 35 to 36 (i) Length from manhole to manholes shall be measured in these item. (ii) Cleaning of sewage line to be started from down stram side, in this operation some pipe line will be cleaned automatically and need not be cleaned by rodding and the same shall not be measured for payment. (iii) The unit rate of the item shall be deemed to include the removal of sludge / waste water accumulated in manhole / inspection chamber due to cleaning of drain by rodding. (iv) Water required for cleaning the sewage line are the responsibility of the contractor and no extra payments will be made in this regard. (v) Cost of bleaching powder and lime deemed to be include in unit.

Cleaning of septic tank. Soakage well of any size by removing of sludge from inside the septic tank and removing to a distnace exc.250m but not exc.500m and buried the same in to earth pits including excavation of earth pits of required size & depth, depositing & spreading of sludge, returning in filling earth over sludge with and including bleaching powder @ 1 kg/sqm and removal of surplus soil to a distance not exc. 50m all complete as specified and as directed. NOTE : Earth to be filled over the pit over bamboo matting after sufficient absorption of liquid for a period of 48 hours and spreading of bleaching powder over the sludge before earth filling as directed by the Engr -in - Charge. Cost of bamboo matting,spreading of bleaching powder and excavating the earth pit and filling earth etc shall be include in the unit rate as quoted and size of pit shall be made accordingly as directed by the Engr-in-Charge. The measurement of sludge shall be taken as per size of earth pit with actual depth of sludge deposited in the earth pit after initial settlement of 48 hours.

Cleaning of blocked gully trap/floor trap etc of any size by rodding thoroughly to manhole and well flushing with water after cleaning and including remove of sludge and other materials obtained from cleaning, garbage to a pit made for this purpose and filling up to the earth complete all as specified and as directed.

Cleaning of blockages of WHB, EWC etc of any size by rodding thoroughly to manhole and well flushing with water after cleaning and including remove of sludge and other materials obtained from cleaning, garbage to a pit made for this purpose and filling up to the earth complete all as specified and as directed.

Cleaning of blocked man holes up to 60cm depth by removing of sludge from inside and removing to a distance exc 200m but not exc.500m and buried the same in to earth pits including excavation of earth pits of required size & depth, deposting & spreading of sludge, returning in filling earth over sludge and removal of surplus siol to a distance not exc.50m complete all as specified and as directed.

All as per item No 40 above but exc 0.60 metre but n. Exc 1.50 metre in deep.

All as per item No 40 above but exc 1.50 metre but n exc.3.0 metre in deep. Notes for Ser item 41 to 42 (i) The unit rate of the item shall be deemed to include the remival of sludge / waste water accumulated in manhole / septic tank / soakage chamber. (ii) Water required for cleaning the sewage line are the responsibility of the contractor and no extra payment wii be made in this regard. (iii) Cost of bleaching powder and lime deemed to be include in unit rate.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing) removing servicable tiles to store and rubbish off the premises all as directed by the Engr-in-Charge.

Material & labour for non- skid Ceramic plain coloured tiles 7 to 8 mm thick (square / rectangular) conforming to IS 13712 grade B-II (a), approved make and colour shade, area of each tile exc 0.11 sqm but not exc 0.18 sqm, in floors etc set and jointed in neat cement slurry and pointed in white or coloured cement to match over & including screed bed or bedding layer 15mm thick in CM 1:6 complete all as specified.

Material & labour for glazed ceramic coloured tiles of size 300 x 200 mm x7 mm thick fixed on vertical surfaces such as dado /skirting, raiser to steps etc conformig to IS - 13712 grade IB-III set and jointed in neat cement slurry and pointed in white or coloured cement to match,over and including screed bed /backing layer of 10mm thick in cement mortar (1:4) complete all as specified & as directed.

Material and labour for Lacquer coated precast chequered cement concrete tiles made with grey cement and pigment of size 300 x 300 x 25 mm thick as in pavement / footpath, set and jointed in neat cement slurry and pointed with cement laid over and including screed bed/ bedding layer of 15mm thick in cement mortar (1:4) complete all as directd.

Supply & fix as in repair 10 litre capacity low level PVC flushing cistern (any colour), syphonic action type, with inlet,ball valve, float,handle, fixed with cast iron bracket (of suitable size) and providing 32 mm dia PVC flush pipe and making all necessary connections complete (excluding PVC connection pipe) as directed by the Engineer-in-Charge. Make : CERA Cat No. B1010107 or equivalent approved.

Supply and fix in repair white vitreous china wash down water closet pan (pedestal pattern) EWC,of size 570 x 460 x 380 mm with 'P' or 'S' trap,including fixing bolts, plastic water closet seat cover, closed pattern with flat bottom, and mild steel chromium plated or aluminum anodised hinging device, making all necessary connections and making good the disturbed surfaces of floor complete all as specified and as directed. Make Hindware Cat No. 20012 or equivalent approved .

Supply and fix in repair white vitreous china squatting pan of 'ORISSA Pattern' , of size 580mm x 440mm (white) with intergal fot rest 'P' OR 'S' trap, front or back inlet, any pattern (excluding flushing cistern and flush pipe) including connection to trap and flushing pipe anti syphon pipe etc complete including provision of PCC bedding and connection to trap, and to flushing pipe, antisyphonage pipe, etc.complete including making good to floor all as specified and directed by the Engr-in-Charge. Make :Hindware Cat No. 20042 or equivalent approved make.

Supply and fix in repairs vitreous china,white colour,flat back, wash hand basin of size 55 x 40 x79cm fixed with brackets, including providing 32mm dia PVC waste pipe,32mm bore CP waste coupling and making all necessary connections complete as directed. Make : Hindware Cat No. 10100 or equivalent approved.

Supply and fix in repairs vitreous China (white) flat back urinal of size 465 x 355 x 265 mm, including providing and fixing plugs, bedding the urinal against wall in cement mortar 1:2, securing urinal to plugs with and including 60mm long brass screws, pointing grating and union for discharge pipe including 32mm bore PVC discharge pipe complete all as specified and as directed. Make : Cera Cat No. 5001 or equivalent approved.

S&F in repairs for 32 mm dia waste coupling for sink of PTMT (half and full threaded) minimum 40mm-60gms complete all as specified and as directed.

S&F in repairs waste fittings/waste pipe 32mm bore CP brass for sink/basins etc with long screwed shanks and fly nuts, flange end bedded in red lead cement and other end fixed complete all as specified and as directed.

S&F in repair waste fittings/waste pipe 40mm bore CP brass for sink, basins etc with long screwed shanks and fly nuts, flange end bedded in red lead cement and other end fixed.

Supply & fix fix in repair PVC connections 15mm size with PTMT nuts of length 450mm complete all as specified and as directed. Make :Prayag Cat No. 323 or equivalent approved .

S&F as in repair PVC connections 15mm size with PTMT nuts of length 600mm complete all as specified and as directed. Make :Prayag Cat No. 323 or equivalent approved make.

S&F as in repair 15mm bore pillar taps,cast copper alloy, with capstan heads, chromium plated screwed down high pressure with or without lettered ''Hot or Cold'' with long screwed shanks and fly nuts screwed for iron pipe and fixed complete all as specified and as directed. Make : Continental series of Jaquar Cat No. CON 011KN or equivalent approved .

S&F as in repair 15mm bore one or two way Angular Stop Cocks, cast copper alloy,fancy type, chromium plated, with wall flange complete all as specified and as directed. Make : JAQUAR CODE- CON 059 KN or equivalent approved .

S&F in repairs brass chromium plated health faucet 8mm dia alongwith 1m flexible tube and wall hook fixed in position complete all as specified and as directed. Make : Cera F8030103 or equivalent approved .

S&F in repairs brass chromium wall mounted hot and cold water mixer with connecting lugs and wall flanges, cast copper alloy, chromium plated complete all as specfied and as directed. Make : Marc ES-520 or equivalent approved.

S&F for basin mixer for mixing hot and cold water screwed down for iron pipe and fixed with all fittings etc complete all as specified and as directed. Make : Jaquar or equivalent approved .

S&F in repair 15mm bore bib taps one or two way cast copper alloy chromium plated, fancy type with crutch or butter fly handle, screwed down, screwed for iron pipe or for brass ferrule & fixed complete all as specified and as directed. Make : Jaquar Code - CON059 KN or equivalent approved.

S&F as in repair 110mm bore PVC(SWR) pipes single socketed, in any length with rubber ring joints fixed to wall, laid in trenches or in flooor with all necessary clamps, bolts, bends, Tee etc complete all as specified and as directed.

Supply & fix in repair 150mm bore PVC(SWR) pipes single socketed, in any length with rubber ring joints fixed to wall, laid in trenches or in floor with all necessary clamps, bolts, bends, Tee etc complete all as specified and as directed.

S&F in repairs for PVC (SWR) 75mm bore pipes single socketed in any length with rubber ring joints, laid in trenches or in floor with necessary clamps, bolt, bends, Tee complete all as specified and as directed.

S&F in repairs for PVC (SWR) 50mm bore pipes single socketed in any length with rubber ring joints, laid in trenches or in floor with necessary clamps, bolt, bends, Tee complete all as specified and as directed.

S&F for reinforced concrete pipes, class NP2, laid and jointed complete with collars of 300mm bore complete all as specified and as directed.

S&F for reinforced concrete pipes, class NP2, laid and jointed complete with collars of 450mm bore complete all as specified and as directed.

S&F in repair 110mm bore PVC(SWR) bends any radius complete all as specified and as directed.

S&F in repair 150mm bore PVC (SWR) bends any radius complete all as specified and as directed.

S&F in repair 75mm bore PVC(SWR) bends any radius complete all as specified and as directed.

S&F in repair 110mm bore PVC(SWR) vent cowl fixed in position complete all as specified and as directed.

S&F in repair 110mm bore PVC(SWR) reducers fixed in position complete all as specified and as directed.

S&F PVC (SWR) 75mm bore junction single (Single T) equal or unequal complete all as specified and as directed.

S&F PVC(SWR) 110mm bore junction single (Single T) equal or unequal complete all as specified and as directed

S&F PVC(SWR) 75mm bore junction Double (double T) equal or unequal complete all as specified and as directed.

S&F PVC(SWR) 110mm bore junction double (double T) equal or unequal complete all as specified and as directed.

S&F PVC(SWR) 75mm bore access door complete all as specified and as directed.

S&F PVC(SWR) 100mm bore access door complete all as specified and as directed.

S&F in repairs, CI floor trap 100mm diameter of outlet, with gratings, including jointing to waste pipe fixed in PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) complete all as specified and as directed.

Supply only liquid water proofing compound complete all as specified and as directed.

Taking down 15mm bore steel tubing and connections, including cleaning and refixing or removal to store complete all as specified and as directed.

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

S&F galvanised steel water tubing 15mm bore, medium grade with all fittings and fixed complete to walls/ceiling or laid in floors complete all as specified and as directed.

M&L for rendering 15mm thick in CM(1:4) on other than fair faces of stone masonary, finished even & fair with using extra cement complete all as specified and as directed.

S&F half round PVC(SWR) 150mm dia with rounded edges including all accessories/fittings like T,Y etc for eaves gutter complete all as specified and as directed.

M&L PCC 1:3:6 type C2 (using 40mm graded stone aggregate) as in surface channels/drain including forming fair finihsed to drain channel complete all as specified and as directed.

M&L for extra for forming fair finished drain on channel 30cm inner girth in cement concrete using extra cement including form, moulds, mitred/stopped ends complete all as specified and as directed.

Add or deduct for each 25mm girth or part thereof over or under 30cm complete all as specified and as directed.

M&L for loose filling with broken bricks aggregate of gauge 80 to 150mm in soakage pits, soakage wells complete all as specified and as directed.

M&L for brick work with subclass 'B' bricks, straight or curved on plan to any radius in half brick thick walls, built in cement mortar 1:4 complete all as specified and as directed.

M&L for PCC 1:3:6 type C2 (using 40mm graded stone aggregate) as in plum concrete in retaining walls etc with plums of stone boulders (Basalt, trap or any other approved) of size 200 to 300mm complete all as specified and as directed. Note :- (i) Volume of stone boulders should not exceed 25% of concrete and shall be measured & paid separately as Supply only)

M&L for formwork to faces of walls, retaining walls, abutments, parapets and staircase, railing and similar work including attached pillasters, buttresses etc vertical or to better in rough finished surfaces complete all as specified and as directed.

Supply only stone boulders (Basalt trap or any other approved) of size 200 to 300mm complete all as specified and as directed.

M&L for RCC (1:2:4), type B-1 (using 20mm graded stone aggregate) (nominal mix) as in RCC band complete all as specified and as directed.

M&L for RCC (1:2:4), type B-1 (using 20mm graded stone aggregate) (nominal mix) as in RCC columns, boundary pillars, piers, posts and struts complete all as specified and as directed.

M&L for formwork to sides and soffits of floor or roof beams, beam haunching, griders, bressumers, lintels, cantilevers, shelves including supports, overhangs etc also splays between floors and beams etc as fair finished complete all as specified and as directed.

M&L struck or recessed pointing in cement mortar 1:4 to brick or stone wall complete all as specified and as directed.

M&L for raised pointing in cement mortar 1:4 to random or polygonal rubble, uncoursed or brought upto course complete all as specified and as directed.

S&F for sensor type pillar tap chromium plated, screwed down high pressure screwed for iron pipe 15mm bore complete all as specified and directed. Make: Hindware, Model No F240001CP or eqivalent make as specified.

M&L for brick work with sub class ''B'' brick straight or curved on plan exc 6m mean radius, built in cement mortar 1:4 complete all as specified and as directed.

RAAJ BANGAR

M/S ANIL KUMAR THAKUR

DHARMINDER SINGH

MAHENDRA KHAWAS

M/S S. S CHETTRI AND SONS

BIJAY MITTAL