Revised Estimate for Command Area Development and Water Management Programme of T.I.P. in Goa State. Reg. Improvement to water course of L.I. Scheme No. III at Village Varkhand in Pernem Taluka.

Amount

Earthwork in excavation in all types of strata comprising of any of the materials such as soil, silt, sand, clay, gravel, moorum of all varieties, shingles, pebbles, all types of conglomorates, laterite rock, soft rock, fissured, shuttered decomposed rock hard granitic or basaltic and all such other materials to these specifications either in full or in parts as the case may be adopting any approved method or methods as may be convenient or permitted. Including chisselling, wedging but excluding blasting dressed to required shape etc., in all conditions such as saturated, dry, moist etc. complete including disposal of materials in all leads & lifts etc. complete as specified and directed. a) All works upto plinth level.

Rubble packing with hard laterite stone under floors including watering ramming and consolidating etc. in pipeline trenches and other foundations complete.

Providing & laying cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: a) All works upto plinth level.

Centering & shuttering including Strutting, Propping & removal of forms for: a) Foundations, Footings, Bases for columns.

Providing and laying in position (1:1½:3) Reinforced cement concrete excluding the cost of centering, shuttering, finishing and reinforcement (1 cement: 1½ coarse sand: 3 graded stone aggregate 20mm nominal size). a) All works upto plinth level.

Providing High yield strength steel reinforcement bar (HYSD) / TMT steel reinforcement bar from secondary producers (Confirming to IS 1786 of 1986) for RCC work including bending, binding & placing in position in all the floors along with the factory made precast concrete cover blocks of specified sizes whose compressive strength is not less than that of surrounding concrete in the structural member.

Laterite masonry in neatly dressed stones of size as specified in cement mortar 1: 4 (1 cement : 4 coarse sand) in foundation and basement.

12mm cement plaster 1:3 (1 cement : 3 fine sand).

Supplying at store or site of work including railway freight, carting, loading and unloading, stacking etc. Centrifugally cast, (spun) ductile iron pressure pipes (with socket/spigot ends) conforming to IS: 8329-2000 with cement mortar lining inside the pipe and outside zinc coat as per IS: 8329-2000 with up to date amendments suitable for jointing with rubber gasket known as TYTON joints. Class K-9. i) 400

Conveying carefully from stack at site, 250m from both sides rolling and lowering in trenches, laying and jointing true to line and level and perfect linking of joints. a) Cast iron or Ductile iron or A.C. or S & S or flanged & PVC pipes.

Jointing of C.I/D.I pipes and specials with rubber gaskets (TYTON joints) SBR type including cleaning the socket and spigot ends with kerosene oil/below lamp and applying soft soap to socket and spigot ends before inserting for rubber gasket jacking and fixing in proper condition including cost of rubber gasket, oil, soft soap and hydraulic testing of jointing as per IS:3144-1985. Nominal diamter in mm. i) 400

Supplying at store or at site of work cast iron specials for mechanical and push on flexible joints as per IS:13382 - 1992 including Sealing rubber gaskets (NR), CI compression glands and coated MS Nuts bolts.

a) Double socket 90 degree Bends. Nominal Dia in mm. i) 400

b) Double socket 45 degree Bends. Nominal Dia in mm. i) 400

c) Double socket 22.5 degree Bends. Nominal Dia in mm. i) 400

d) Double socket 11.25 degree Bends. Nominal Dia in mm. i) 400

Supply at store or site of work including railway freight, carting, loading, unloading, stacking etc. Ductile Iron pipe specials including rubber ring fitting push on joints onforming to IS : 9523 with inside cement mortar lining & externally coated with zinc with finishing layer of bituminous paint complete. a) M.J. Collar. Nominal Dia in mm. i) 400

Supplying at store or site of work including railway freight, carting, loading and unloading, stacking etc. C.I. double flanged pipes - PN10 horizontally cast conforming to IS: 7181-1986 bearing ISI mark as per the length mentioned below. a) Barrel Length of 4.0 metres. Dia in mm. i) 100

Making flanged joints for C.I./D.I. Pipes and specials with rubber insertion, nuts and bolts including necessary hydraulic testing etc. complete including cost of rubber insertion nuts and bolts,as directed by the engineer in charge. Nominal diameter in mm.

Cutting of cast iron / ductile iron pipes by mechanical grinder working on electricty, including the cost of hire charges of mechanical grinder, disel operated elctrical generator set, suitable for supplying power for the grinder for cuuting, cost of grinding blades , skilled work force, fuel etc required for completion of job as per the direction of engineer in charge. Dia in mm. i) 400

Supply at store or site of work including railway freight, carting, loading, unloading, stacking etc. Ductile Iron pipe specials including rubber ring fitting push on joints conforming to IS : 9523 with inside cement mortar lining & externally coated with zinc with finishing layer of bituminious paint complete. a) Double Socket Tee with Branch Flange. Nominal Diameter in mm

Supplying at store or site of work including freight, transit insurance, taxes, duties, carting, loading, unloading, stacking etc. IVC / KIRLOSKER / FOURESS / AVK / SIGMAFLOW / AVISHKAR brand Ductile Iron double flanged, manually operated Sluice valve generally confirming to IS 14846-2000, with Body, Bonnet of Ductile Iron of grade GGG40 or SG 400/12, 400/15, 500/7 or equivalent grade as per IS 3896 part 2-1985 and subsequent revisions, four faces and spindle nut of leaded gun metal of IS 318 GR LTB 2/Al Bronze, inside screw of non rising stainless steel AISI 410/420 spindle. The valves should be coated with electrostatic Powder/ Epoxy Coating on both inside and outside minimum 250 microns thickness of blue color. Nominal diameter in mm.

Supplying at store or site of work including freight, transit insurance, taxes, duties, carting, loading, unloading, stacking etc. IVC / KIRLOSKER / FOURESS / AVK / SIGMA FLOW / AVISHKAR brand Ductile Iron Single chamber/kinetic double orifice, temperproof type Air Valve generally conforming to IS 14845 with body and cover in Ductile Iron of grade SG 400/12, 500/7 or equivalent grade as per IS 3896 part2-1985 and subsequent revisions. All internal parts such as float, shell etc. all cover bolts of Stainless Steel and Gaskets, seals etc made of food grade EPDM. The valve body shall be coated with food grade blue colour Epoxy inside and outside minimum 250 microns thickness of blue color RAL5017/5005 suitable for drinking water. The flanges shall be Drilled as per IS: 1538. etc complete TYPE P.N. 1.6 ( Class A). Nominal Diameter in mm. i) 100

Fixing C.I. Tamper proof Kinetic double orifice type air valve. Small orifice elastic ball resting on bronze orifice nipple and large orifice vulcanite ball resting on moulded seat ring with built in Kinetic features of isolating sluice valve of rating P.N. 1.6 with ISI mark mounted on a horizontal mounting operated by mitered wheel gear suitable for working pressure of 10 kg / sq. cm. Nominal Diameter in mm. i) 100

Hosting laying cast iron sluice valves/butterfly valves/reflux valve of size given below at location in pipeline etc. complete as directed as per IS:2685-1971 CLASS II & III. Nominal Diameter in mm.

Supplying stacking at site and conveying hoisting, laying in position to correct line and level and linking joints of MS specials. fabricated from MS plate including cutting, bending, welding, procurement of plates, gas cutting to required size, rolling, tack welding, assembling in suitable length to form special, welding on automatic machine and forming V edge on both ends of special as required, hydraulic pressure test at factory to the required test pressure conforming to IS : 3589-1991 including freight and all taxes, etc. complete. a) With 10 mm -12 mm thick plate. i) Tees, bends, reducers.

Refilling the pipeline / foundation trenches plinth sides, foundation etc. with available excavated earth in layers not exceeding 20 cm depth consolidating each layer ramming and watering lead upto 50 M and all lifts and disposal of surplus earth as directed by Engineer in Charge.

Kamakshi Infrastructure Construction (BID ID -52222)

M/s SM CONSTRUCTION (BID ID -51982)

M. K. Constructions (BID ID -52230)

I B CONSTRUCTIONS (BID ID -52220)