83875/E8 Special Repair to sewage lines soak well pits, soak well grease traps, septic tanks and drainaged system of living in area of all ranks at AFS Dinjan under GE (AF) Mohanbari

Amount

Demolition of cement concrete (unreinforced) in ground floors and paving of any description not exc 15 cm thickness (below or above GL) including removing materials outside MD land complete all as specified and directed.

M&L for 75 mm thick PCC 1:3:6, type C-2 (using 40 mm graded crushed stone aggregate) as in plinth protection, path, hard standing and finished the surfaces even and smooth without using extra cement complete all as specified and directed.

M&L for PCC 1:2:4, type B-1 (using 20mm graded crushed stone aggragate) as in surface channel and drain etc complete all as specified and directed.

Demolition of reinforced cement concrete as in cover slabs for manhole, septic tank and soak well etc (reinforcement cut as required to facilitate demolition) complete all as specified and directed.

M&L for precast RCC 1:2:4, type B-1 (using 20mm graded crushed stone aggregate) as in cover slab of manholes, drain and similar article with including necessary form work as required set in cement mortar 1:4 all as specified and directed.

M&L for mild steel TMT bars 10mm dia and over cut to length, bent to shape required including cranking bending and binding 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 etc complete all as specified and directed.

Demolition of brickwork or stone/boulder masonry, built in cement mortar or cement lime mortar including all quoins, arches, pillars, etc but excluding ashlar facings, dressed stonework and precast concrete all as directed.

M&L for brick work with sub class 'B' bricks straight or curved on plan exc 06 mtr mean radius built in cement mortar 1:6 complete all as specified and as directed.

Taking down cement or cement lime plaster, any description on brick or stone walls etc including raking out joints, hacking for key, scrubbing down with water etc complete all as directed.

M&L for rendering 15 mm thick in CM (1:4) on brick/concrete surface and finished the surfaces even and smooth using extra cement mixed with integral water proofing compound @ 3% weight of cement complete all as specified and directed (WPC shall be measured and paid separately).

Supply only integral water proofing compound.

M&L for PCC 1:2:4, type B1 (using 20mm graded crushed stone aggregate) as in coping /benching finished fair and even including necessary form work.

Dismantling brick work (laid flat or on edge) in floors, channels kerbs, aprons etc laid bedded and pointed in cement mortar complete including removing of materials outside MD land.

M&L for old size bricks sub class 'B' having crushing strength 75kg / sqcm laid flat in floor/tappered wall of drain bedded and jointed cement mortar (1:6) and pointed in CM (1:3) using complete all as specified and directed.

All as per item No. 14 here-in-above but except bricks.

M&L for old size bricks sub class 'B' (well burnt bricks having crushing strength 75 kg/sqcm) laid on edge in floors/tappered wall of drain bedded and jointed cement mortar (1:6) and pointed in CM (1:3) complete all as specified and directed.

All as per item No 16 have in before but except Bricks.

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

Cutting into existing manholes for connecting new drains 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 B1 smooth finished and reforming benching as required for 150mm bore pipe.

M&L for PCC 1:4:8, type D2 (using 40mm graded crushed store aggregate) as in foundation filling, and mass concrete in manholes all as specified and directed.

Excavation in trenches n.exc 1.5 m wide and n.exc 1.5 m in depth for foundation, etc, or shafts, wells, cesspits, manhole, pier holes etc n.exc 10 sqm on plan and n.exc 1.5 mtr in depth and getting out in soft/loose soil all as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm thick all as directed.

Removing excavated material exc 50 mtr but n.exc 250 mtr and depositing where directed at a level not exc. 1.5 m above the starting point all as directed.

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

S&F for 150 mm bore salt glazed stone ware drain pipe laid in trenches and jointed in cement mortar all as specified.

M&L for concrete bed to drain pipe including packing under and haunching against the side and pipe of 150mm bore in cement concrete 1:3:6, type C2 after they laid and tested.

Cleaning of septic tank of any size and depth exc 1.5 m but n.exc 4.5 m from the GL , by taking out / removing the accumulated sludge/ soil / sewage / any other foreign / foul materials etc (solid / semi solid) sludge and sludge water using mehanical device / diesel pump of suitable type and capacity, removing the sludge out side MOD land and burrying in excavated pits for the purpose including disposal of the soil and making the system functional and applying bleaching powder for hygenic complete all as specified and directed.

Dewatering of existing soak well of any size and depth not exc 4.5m from G.L by using mechanical device/diesel pump of suitable type and capacity and removing to a distance exc 50m but not exc 100m complete all as specified and directed.

LESS SCHEDULE OF CREDIT (NOTE : The bidders are required to quote the same amount as inserted in estimated rate column against the group of credit items. For details refer Schedule of Credit including notes therein of tender documents.