REPAIR MAINT AND CLEANING OF SEWAGE LINE, MANHOLES/ SEPTIC TANK/ SOKAGE PITS AT LOWER LEIMAKHONG MIL STN AND KOIRENGEI

Amount

Schedule 'A'

Demolition of cement concrete un-reinforced of any description and any position not otherwise specifically provided for complete all as specified and directed.

Demolition of RCC Manhole covers, slabs etc complete all as specified and directed by Engr-in- Charge.

M&L Cement concrete type D2 , 1:4:8 using 40mm graded agregate in foundations,filling and mass concrete filling and mass concretecomplete all as specified and directed.

M&L for cement concrete Type B1 1:2:4 (using 20mm graded stone aggregate) as in coping/man holes/drain water troughs and the like including weathering, slightly rounded or chamfered angles and throating complete all as specified and directed by Engr-in- Charge.

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

M&L for RCC Type B1 1:2:4 (Nominal Mix) using 20mm graded crushed stone aggregate as in slabs supported on walls, beams and columns in floors, roofs, landings, balconies, canopies , deck slabs and in shelves and the like complete all as specified and directed by Engr-in- Charge.

Demolition of brick work or stone/boulder masonry built in cement mortar including all quoins, arches, pillars etc but excluding ashlar facings, dressed stone work and pre-cast concrete articles and removing unserviceable materials from site of work complete all as specified and directed.

M&L brick work with sub class ‘B’ bricks (locally available best quality) straight or curved on plan exceeding 6m mean radius built in cement mortar (1:6) complete all as specified and directed.

Ditto all as per Sl item No. 7.00 here-in-above but except brick (NOTE: Seviceable brick obtained from demolition under Sl item No 8.00 here-in-above shall be reused under the item)

M&L brick work with sub class ‘B’ bricks (locally available best quality) straight or curved on plan exceeding 6m mean radius built in cement mortar (1:6) complete all as specified and directed.

M&L for brick work with sub class 'B" bricks in one brick thick in honey comb walling in cement mortar (1:4) complete all as specified and directed by Engr-in- Charge.

Use and waste of formwork to edges of concrete flats, treads, breaks in floors, window cills, concrete railing, opening in concrete walls, floor and roofs n exe 20cm wide and sides of RCC/PCC bands in walls, horizontal or sloping and similar work exe 5cm but n exe 10cm wide for rough finished surfaces complete all as specified and directed.

M&L for separating, scraping and cleaning of reinforcement (demolition of concrete measured paid separately)

M&L TMT mild steel bars bars 8 mm dia to 10mm dia , cut to length bent to shape required including cranking, bending, hooking ends and binding with MS wire (annealed) not less than 0.9 mm dia complete all as specified and directed.

M & L for reinforcement TMT bars 10mm dia and over cut to length, bent to shape reqd including cranking bending 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.

Taking down of cement plaster inculding wall finishes in any description on brick or stone wall etc., incl hacking out joints for key scrubbing down with water etc. all as specified and directed

M&L for 10mm thick rendering in cement mortar (1:4) on fair faces of brick walls or concrete surfaces finished even & fair without using extra cement all complete as specified and as directed

Dismantling of breaking up 150mm bore dia drain pipe (salt glazed ware, AC or reinforced cement concrete) as set and jointed in CM and taking out of trenches, if required complete all as specified and as directed.

Dismantling of breaking up 200mm bore dia drain pipe (salt glazed ware, AC or reinforced cement concrete) as set and jointed in CM and taking out of trenches, if required complete all as specified and as directed.

S& F reinforced concrete pipes 150mm dia class NP-2 laid and jointed complete with collars as directed by engineer in charge complete all as specified and as directed.

S& F reinforced concrete pipes 200mm dia class NP-2 laid and jointed complete with collars as directed by engineer in charge complete all as specified and as directed.

M&L for concrete bed of PCC 1:4:8 type D2 using 40 mm graded stone aggregate for 150mm dia drain pipes bedding & hunching against the sides complete after pipes are laid, jointed and tested cement complete all as specified and as directed.

M&L for concrete bed of PCC 1:4:8 type D2 using 40 mm graded stone aggregate for 200mm dia drain pipes bedding & hunching against the sides complete after pipes are laid, jointed and tested cement complete all as specified and as directed.

S&F in repairs PVC 100mm dia(SWR) pipes single socketed in any length with rubber rings joints fixed to walls or trenches as in waste / soil pipe complete all as specified and directed.

S&F in repairs PVC 75mm dia(SWR) pipes single socketed in any length with rubber rings joints fixed to walls or trenches as in waste / soil pipe complete all as specified and directed.

S&F in repairs PVC (SWR) bends of any radius of 110mm dia cement complete all as specified and as directed.

S&F in repairs PVC (SWR) bends of any radius of 75mm dia cement complete all as specified and as directed.

S&F in repairs PVC (SWR) branch piece (single ‘Y’) equal or unequal for 110mm dia PVC pipe cement complete all as specified and as directed.

S&F in repairs PVC(SWR) branch piece (single ‘Y’) equal or unequal for 75mm dia PVC pipe cement complete all as specified and as directed.

S&F in repairs PVC (SWR) junction (single ‘T’) with access door for 110mm dia pipe cement complete all as specified and as directed.

S&F in repairs for PVC (SWR) junction (single ‘T’) with access door for 75mm dia pipe cement complete all as specified and as directed.

S&F in repairs for PVC (SWR) vent cowl suitable for 75 mm dia PVC pipe cement complete all as specified and as directed.

S&F in repairs for PVC (SWR) vent cowl suitable for 110mm dia PVC pipe cement complete all as specified and as directed.

S&F in repairs PVC (SWR) P trap bore in 100/110 mm cement complete all as specified and as directed.

S&F in repairs PVC (SWR) S trap bore in 100/110 mm complete all as specified and directed by Engr-in- Charge.

S&F in repairs PVC (SWR) floor trap in repair plain with grating including jointing with solvent cement dia of outlet in 75 mm dia cement complete all as specified and as directed.

S&F of in repair 10 litre capacity PVC flushing cistern low level white colour incl PVC flush pipe of reqd length complete all as specified and directed.

S&F in repair plastic water closet seat cover , white , closed pattern with flat bottom and cover , mild steel chromium plated hinging device cement complete all as specified and as directed.

S&F in repairs vitreous china European type wash down water closet pan (Pedestal pattern) of white colour including plastic water closet seat black closed pattern with flat bottom (with MS or CP hinging device) and fixing bolts, P or S trap, necessary inlet and outlet connections including syphonic action type low level PVC flushing cistern of 10 lit capacity white in colour and PVC flush pipe 32mm dia cement complete all as specified and as directed.

Cutting/filling into existing manholes for connecting new sewage line 225mm bore (internal dia of pipe ) incl making good to disturbed benching and haunching, plaster etc and forming new branch channel ( ½ round of ¾ section) if required in cement concrete 1:2:4 type B1 and smooth finished , reforming benching as required and as directed for internal dia for the following pipe. (Each Man hole shall be measured under this item )

S&F in repairs vitreous china squatting pan “Orissa pattern of size 580x440mm white, back inlet and integral foot rests (excluding flushing cistern and flush pipe) but including lime concrete bedding complete all as specified and directed.

Dismantling 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.

M&L for joint free coloured non-skid ceramic tiles 7 to 8 mm thick (Square/rectangular) area of each tile exceeding 0.11 Sqm but not exceeding 0.18 Sqm as in floor, set and jointed in neat cement slurry and pointed in white or coloured cement to match shade including 15 mm thi screed bed or bedding layer in cement mortar (1:6) complete all as specified and directed.

S&F Glazed ceramic tiles in vertical surface 350x 250x 7 mm/ 450X 350X 7mm thick set and jointed in neat cement slurry and pointed in white or colour cement to match the shade of tile including 10mm thick cement mortar backing in CM (1:4) as backing coat to receive tiles complete all as specified and directed.

Cleaning existing sewage (SWG,SWR,RCC Pipe line) from manholes to manhole by rodding with required equipments so as to completely removal the accumulated/deposited sludge and sediments and finally washing with clean water all as specified for size of pipe line:- (a) 100mm dia

(b) 150mm dia

(c) 200mm dia

Cleaning of manholes of any depth by opening including de-sludging, de- watering either by mechanical pump or manually, taking out soilids / semi solid sludge, flushing with water, removing and disposal of the sludge etc to a distance not exc 50m & buried in shallow pits with a covering of soft/loose soil of minimum 20 cm thick at an inhabitable location in the cantt area and sprinkling bleaching powder @ 1 kg per sqm complete all as specified and directed. Note:- (i) Unit rate is inclusive of supply of bleaching powder and necessary earth work. (ii) 02 Nos of labourers for cleaning of manholes/nahani trap/gully trap manually will report to AGE B/R -II complaint cell at 0845hrs daily except on holiday, failing which the recovery @ Rs. 500/- day per person will impose to the contractor as the clearing of sewage blockage is an essential work.

Cleaning of accumulated soild/semi soild or liquid sludge from septic tanks or any size either by mechanical pump or manually and collecting the sludge so removed in a container and disposal of the same to a distance not exceeding 50m in shallow pits with a covering of loose /soft soil of minimum 20 cm thick at an inhabitable location in the Cantt area and sprinkling bleaching powder @ 1 Kg per Sqm complete all as specified and directed. Note:- Unit rate is inclusive of supply of bleaching powder and necessary earthwork.

S&F in repairs 160mm dia PVC (SWR) grade single socketed pipes in any length complete with rubber ring joints laid in trenches or in floors as in waste/ soil pipe complete all as specified and directed.

Cleaning and removing all scale and dirt, etc from 500 ltr capacity of tanks (PVC, RCC) and from mouths of circulating pipes in any position and location etc including opening wash out and cleaning with chlorine powder inside tank and closing the wash out etc complete, capacity of tank including to write clean on date in the surface of water tank etc complete all as specified and directed. (Note:- Letters for clean on date will be inclusive in quoated rate)

Cleaning and removing all scale and dirt, etc from 1000 ltr capacity of tanks (PVC, RCC) and from mouths of circulating pipes in any position and location etc including opening wash out and cleaning with chlorine powder inside tank and closing the wash out etc complete, capacity of tank including to write clean on date in the surface of water tank etc complete all as specified and directed. (Note:- Letters for clean on date will be inclusive in quoated rate)

De-sludging the solid sludge from soak well, cleaning aggregates obtained from soak well for reuse ( minimum 50% for the purpose) placing the same with new brick bats, depositing the sludge / silt in trenches with a coverage of soft/loose soil of minimum 20 cm thick at an inhabitable location in the Cantt area and sprinkling bleaching powder @ 1 Kg/ sqm complete all as specified and directed. Note:- Unit rate is inclusive of supply of bleaching powder and necessary earthwork.

M/S Apple constructions (BID ID -3198709)

M/s SSS Motors (BID ID -3198083)