8254-REPAIR AND MECHANAISED CLEANING OF SEWAGE LINES, MANHOLES, SEPTIC TANKS, FILTER BED AND OH SERVICE TANKS AT MH, PVM, NANDAMBAKKAM UNDER GE STM

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/in foundation trenches or drains (not exceeding 1.5 m in width or 10sqm on plan), including dressing of sides and ramming of bottom lift upto 1.5 m, including getting out excavated soil and disposal of surplus soil as directed with in a lead of 50 m. Hard and dense soil.

Returning, filling in, including spreading, levelling watering and well ramming in layers n.exc 25cm with excavated soils all as specified.

Demolition brick work built in cm ncluding all quoins, arches Pillars etc.

M/L Brick work with fly ash bricks, straigh or curved on plan exc 6 mean radius, built in cm 1:4.

M/L brick work with fly ash bricks half bric thick in CM 1:4 all as specified

Taking down cement plaster on brick wall including raking out joint hacking for key scrubbing down ith water etc.

M/L Rendering in cm 1:4, 15 mm thick on fair faces of brick work , including finishing the surface even and smooth without using extra cement with WPC NOTE: WPC shall be measured and paid seperately

Supply only Water proofing compound

Demolition of cement concrete reinforced in any position and description(reinforcement to be cut as required to facilitate demolition)

M/L providing precast cement concrete type B1 1:2:4 using 20 mm graded stone aggregte, as in man hole covers and set in cement mortar 1:4

M/L MS TMT bars 10 mm dia and over cut to length bent to shape required including cranking, bending spially for hooping for columns, hooking ends and binding with mild steel wire (annealed) not less than 0.9 mm dia.

M&L plain cement concrete 1:4:8 type D2 (using 40 mm graded crushed stone aggregate) in foundations, filling and mass concrete all as specified.

M&L PCC 1:2:4 type B1 using 20mm graded aggregate as in coping and benching incl weathering slightly rounded or chamfered angles and throating as directed including form work all as directed.

Demolition of cement concrete in any position and in description not otherwise provided for

M/L PCC 1:3:6 type C2( using 40 mm graded stone aggregate) as in beds of drain all as specified .

Extra for forming fair finished to drains or channel 30 cm inner girth in cement concrete, using extra cement, including forms, moulds, mitred/stopped ends etc.

Demolition and breaking up 150 mm dia (salt glazed ware, AC or Reinforced concrete) piipe jointed in cement mortar and disposed off the premises all as directed.

Demolition and breaking up 200 mm dia (salt glazed ware, AC or Reinforced concrete) piipe jointed in cement mortar and disposed off the premises all as directed.

M&L PCC 1:3:6, type C2 (using 40mm grade stone aggregate) to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested, for 150mm bore all as specified

M&L PCC 1:3:6, type C2 (using 40mm grade stone aggregate) to drain pipes including packing under and haunching against the sides of pipes after they are laid and tested, for 200mm bore all as specified

M&L reinforced concrete pipes 150mm bore, class NP2, laid and jointed complete with collars laid in trenches and jointed in CM 1:1 and tested as specified.

M&L reinforced concrete pipes 200mm bore, class NP2, laid and jointed complete with collars laid in trenches and jointed in CM 1:1 and tested as specified.

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 150mm bore all as specified.

Removing of sewage sludge from under ground sewage sump/septic tank and cleaning of any size and deep including cleaning of side walls, alround removal of accumulated sludges, silt, mud etc, and covering the same with earth, recommissioning septic tank including site clearance around 3 metre depositing outside camp area all as directed by Engineer-in-Charge.

Bailing out water from septic tank of any size & deep and cleaning inlet and outlet sewer lines including taking out the sewage water and carting away it from the defence area all as directed by Engr-in-charge. Note: Item No.24 & 25 Bailing sewage water to be taken out with proper tanker vehicle meant for the purpose with due care considering health hazards.

Cleaning of manholes by bailing out fluid and removing sediments, washing manhole floors and walls with wire brush taking out the excavated sludge, and carting away the same far away from buildings/living area and deposit at low lying area/ditches and cover with fresh earth on top complete all as specified and as directed by the Engineer-in-Charge.

Manhole depth not exc 1.00m

Manhole depth exc 1.00m and not exc 2.00m

Manhole depth exc 2.00m and not exc 3.00m

Cleaning the existing SGSW/CI/SWR/RCC sewage pipe line by roding mechanically and removing all sludge and foreign matters completely and neatly from the pipe line and making serviceable for free flow of sewage in 100mm dia of pipe all as specified and directed

All as per item No 27 here in before but 150 mm bore of pipe

All as per item No 27 here in before but 200 mm bore of pipe

Cleaning and removing individual blockages in IWC/EWC by manually or mechanically and removing all sludge and foreign matters completely, neatly and making serviceable for free flow all as specified and directed

Cleaning and removing individual blockages from nahani trap/ floor trap/ gully traps in Bath rooms/Kitchen etc. by manually or mechanically and removing all sludge and foreign matters completely, neatly and making serviceable for free flow and placing the covers/ gratings in position all as specified and directed

Pumping out sewage/rainwater from septic tank/soak wells/manholes/drains etc by mechanically and disposing the same in pits where directed including necessary excavation refill and disposal of surplus soil etc complete, placing the covers intact, all as directed by engr-in-charge.

Cutting opening around floor trap (wall junction) /nahani trap and repairing joint leaking using cement slurry including replacing the damaged traps and making good the surface to match with adjoining area and ensure leak proof joint all as specified and as directed.

Cleaning the PVC service water tanks by removing out water, cleaning floor, wall with wire brush and bleaching powder and removing mud, dusts, fungus and cleaning the floor and walls surface with fresh water complete for the capacity of tank up to 250 litrs all as directed by Engineer-in-Charge.

All as per item No 34 here in before exc 250 ltrs but n.exc 500 ltrs capacity

All as per item No 34 here in before exc 500 but n.exc 1000 ltrs capacity

All as per item No 34 here in before exc 1000 ltrs but n.exc 2000 ltrs capacity.

Ball valves 20 mm dia high pressure of PTMT With epoxy coated Aluminium rod & high density plastic ball screwed fr ion pipe and fixed (minimum weught 20 mm- 210 gms ) fixed in repairs.

Dismantling water tanks and removing from site/ credit to the contractor capacity of tank exc 250 ltr and n ecx 500 ltr

All as per item No 39 above but capacity of tank exc 500 ltr and n.exc 1000 ltr.

S& F Rotational moulded polyethylene water storage tank 500 Ltr (Cylinderical vertical with closd top) hoisted and fixed in osition all as specified in SSR Part I, capacity of tank 500 Ltr.

All as pe item No 41 herein before but capacity of water tnk 1000 Ltr.

Karthikeyan Builders