REPAIR/MAINTENANCE OF DRAIN, DRAIN COVER, MANHOLE, SEPTIC TANK, SEWAGE LINE, COVER ETC AT CERTAIN LOCATIONS AT MIL STN BARRACKPORE UNDER GE BARRACKPORE

Demolition of plain cement concrete in ground floors and pavings not exceeding 15 cm thickness (below or above ground level) complete all as specified and as directed.

M & L for PCC 1:4:8 Type D-2 ( Using 40 mm graded crushed stone aggregate) as in foundation , filling, and mass concrete complete all as specified and directed.

M & L for PCC 1:3:6, type C2 (using 40 mm graded crushed stone aggregate) as in surface channel or drain including necessary form work complete all as specified and as directed.

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

M & L for PCC 1:2:4, type B0 (using 12.5 mm graded crushed stone aggregate) as in coping, cills, hold fasts, fixing of post, water trough etc. including necessary formwork (straight or curved) complete all as specified and as directed.

Demolition of reinforced cement concrete (reinforcement cut as required to facilitate demolition) of any description and in any position not otherwise specifically provided for all as specified and as directed.

M & L for precast RCC cover slab, 1:1.5:3 type A-1,(Using 20 mm graded crushed stone aggregate ) as in drain/manhole cover slab etc., and set in cement mortar 1:4 including necessary form work complete all as specified and as directed.

M&L for RCC 1:2:4, type B-1 (using 20mm graded crushed stone aggregate) as in Slabs supported on walls, beams, and column in floors, roof, landing, balconies, canopies, deck slab and in shelves and like etc. complete all as specified and as directed.

Use and waste formwork to soffits and sides of suspended slabs such as roof slabs, floor slabs, landings sun shade, chajja, floors, roofs, landings, balconies etc., n exc 200 mm thick (horizontal or sloping) for rough finished surface of concrete complete all as specified and as directed.

M & L for mild steel TMT bars 10 mm dia and over cut to length, bent to shape as required including cranking, bending spirally for hooping for columns,hooking ends and binding with mild steel wire(annealed) not less than 0.9mm dia as in reinforcement bar complete all as specified and as directed.

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

Demolition of brick or stone masonry work built in cement mortar including all quoins, arches, pillars etc complete all as specified and as directed.

M&L for 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 as directed.

M&L for brick work with sub class ‘B’ bricks (locally available best quality) straight or curved on plan exceeding 6m mean radius, built in cement mortar 1:4 complete all as specified and as directed.

M&L for brick work with subclass ‘B’ bricks, (locally available best quality) straight or curved on plan to any radius in half brick thick wall, built in cement mortar (1:4) complete all as specified and directed.

Taking down cement plaster on walls, chajja surfaces, etc including raking out joints, hacking for key, scrubbing down with water complete all as specified and directed.

M & L for rendering 15 mm thick in cement mortar (1:6) on fair faces of brick work or concrete surfaces finished even and smooth without using extra cement complete all as specified and as directed.

M&L for 15mm thick rendering in cement mortar (1:4), in two layers, under coat of 10 mm thick & top of 5 mm thick, to other than fair faces of brick or concrete wall surfaces, top layer 5 mm thick mixed with water proofing compound @ 100Ml per bag(50Kg) of cement or as per manufacture's instructions, finished even and smooth without using extra cement complete all as specified and as directed. Note : Water proofing compound will be measured and paid separately as "Supply only".

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

M&L for preparation of newly plastered surfaces of walls and applying two coats of cement based paint complete all as specified and as directed.

S & F in repairs, 110 mm dia PVC (SWR) pipes, single socketed in any length with rubber ring joints and laid in trenches or in floor complete all as specified and as directed. Note : Excavtion & Earth work is deemed to be include in quoted rate.

S&F 110 mm dia PVC (SWR) bends any radius complete all as specified and as directed

S&F 110 mm dia PVC (SWR) bends with access door any radius complete all as specified and as directed

S&F 110mm dia PVC (SWR) junction single, (single T) equal or unequal provided complete all as specifiec and as directed.

S&F 110mm dia PVC (SWR) junction single, (single T) equal or unequal provided with access door complete all as specifiec and as directed.

S&F 110mm bore PVC (SWR) branch piece , single (single Y) equal or unequal with access door complete all as specified and as directed

S & F in repairs, 75mm bore PVC(SWR) pipes single socketed in any length with rubber ring joints laid in trenches or in floor complete all as specified and as directed. Note : Excavtion & Earth work is deemed to be include in quoted rate.

S&F 75 mm dia PVC (SWR) bends any radius complete all as specified and as directed

S&F 75 mm dia PVC (SWR) bends with access door any radius complete all as specified and as directed

S&F 75mm dia PVC (SWR) junction single, (single T) equal or unequal provided with access door complete all as specifiec and as directed.

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

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

Opening cover, cleaning and de-sludging, excreta, night soil etc of existing septic tank, soak well and sewage sump completely of solid/liquid sludge by pumping or manually from inside the septic tank, soak well and sewage sump and removal of sludge and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m. Top layers of excavation pit covered by layers of 150mm depth earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and as directed. NOTE: - For item NO. 33.00 TO 36.00, Excavation of trenches, disposal of surplus soil and bleaching powder is deemed to be included in the quoted unit rates however quantity of sludge portion only will be measured and paid.

De-sludging/de-silting and cleaning of existing manholes and gully traps etc of any depth including taking out sludge/ slit and other foreign materials from manholes and gully traps of any size and staking the removed silt/sludge and depositing in excavated pits (required size and depth) not exceeding 100m. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and as directed

Systematically cleaning and de-silting/de-sludging of blocked sewage/ waste pipe line up to 150 mm dia of any description by rodding with using steel rod or split bamboo sticks thoroughly from both sides between adjacent manholes still to get clear flow of sewage line is observed, passing knots, kamti and disc of required size or pumping out liquid waste /sewage, plugging and diverting the flow to the drain if necessary and stacking the removed silt/sludge and depositing in excavated pits (required size and depth) not exceeding 50m. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and as directed.

Cleaning of chocked / blocked WC, bath & kitchen trap etc upto IC / gully trap of any size including bailing out water/sewage manually and removing the deposited residual sludge/debris and depositing in excavated pits (required size and depth) exceeding 50m but not exceeding 100m. Top layers of excavation pit covered by layers of 150mm thick earth spreading with bleaching powder @ 200 gm per Sqm for disinfections purpose complete all as specified and directed.

Supply and filling loose brick aggregate of gauge 80 to 100mm in soak well / soakage pit after opening of cover slab and placing the same in position after filling of aggregate including taking out old unserviceable brick aggregate from soak well/soakage pit and removed from site including cleaning of soak well complete all as specified and as directed.

Excavation in trenches not exc 1.50 m wide and not exc 1.50 m deep for foundation, laying of pipe or for shafts, wells cesspits, man holes, pier holes, laying of cable etc not exc 10 Sqm on plan and n exc 1.5m in depth and getting out in soft / loose soil complete all as specified and as directed.

Excavation in trenches not exceeding 1.5 m wide for foundation or for shafts, wells, cesspits, manholes, pier holes etc. not exc 10 sqm on plan and exceeding 1.50 in depth but not exc 3.0 m and getting out soft/loose soil complete all as specified and directed

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exc. 25 cm in soft / loose soil complete all as specified and as directed.

Removing excavated soil to distance not exc. 50 m and depositing where directed at a level not exc. 1.5 m above the starting point etc complete all as specified and as directed.

S&F DWCPE (SN8) pipes, nominal dia 150 mm laid in trenches for sewer network, fixed and jointed with integral socket or coupler and EPDM sealing ring (depending on pipe ends) as per manufacturer including dismantling of old drain pipe of any description instructions complete all as specified and as directed.

S&F DWCPE (SN8) pipes, nominal dia 200 mm laid in trenches for sewer network, fixed and jointed with integral socket or coupler and EPDM sealing ring (depending on pipe ends) as per manufacturer including dismantling of old drain pipe of any description instructions complete all as specified and as directed.

S&F DWCPE (SN8) pipes, nominal dia 300 mm laid in trenches for sewer network, fixed and jointed with integral socket or coupler and EPDM sealing ring (depending on pipe ends) as per manufacturer including dismantling of old drain pipe of any description instructions complete all as specified and as directed.