REPLACEMENT OF EXISTING DAMAGED CHILLED WATER PIPELINE AND ITS INTER RELATEDCIVIL WORKS FROM SUB STATION TO ADMIN ROOM IN LaCONES

PART " A " CIVIL PART

Demolishing brick work manually/ by mechanically means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Enginer-in-charge. In cement mortar

Demolishing cement concrete manually / by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-in-charge. Nominal concrete 1:3:6 or richer mix.

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge : In Cement Mortar

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

Supplying and filling in plinth with sand under floors, including watering,ramming, consolidating and dressing complete.

Providing and laying 60mm thick factory made cement concrete interlocking paver block of M-30 grade made by block making machine with strong vibratory compaction , of approved size , design and shape , laid in required colour and pattern over and including 50 mm thick compacted bed of coarse sand , filling the joints with line sand etc. all complete as per the direction of Engineer-in-charge.

Filling available excavated earth ( excludung rock ) in trenches , plinth , sides of foundations etc. In layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering , lead upto 50 m and lift upto 1.5 m .

Brick work with common burnt clay F.P.S ( non modular ) bricks of class designation 3.5 in foundation and plinth in : Cement mortar 1:6 ( 1 cement : 6 coarse sand )

18 mm cement plaster in two coats under layer 12mm thick cement plaster 1:5 ( 1cement : 5 coarse sand ) and a top layer 6mm thick cement plaster 1:3 ( 1 cement : 3 coarse sand ) finished rough with sponge.

Providing , hoisting and fixing above plinth level upto floor five level precast reinforced cement concrete work in string courses , bands , copings , bed plates , anchor blocks , plain window sills and the like , including the cost of required centring , shuttering but , excluding cost of reinforcement with 1:1.5:3 ( 1 cement : 1.5 coarse sand ( zone - III ) : 3 graded stone aggregate 20 mm nominal size )

Steel reinforcement for R.C.C. Work including straightening , cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars.

Centering and shuttering including strutting , propping etc. and removal of form for :- Suspended floors , roofs , landings , balconies and access platform .

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

PART " B " A.C. CHILLED WATER PIPELINE WORK PART

Insulated Chilled water piping (Expanded Polystrene Insulation)

Supply, laying/fixing, testing and commissioning of following nominal size of chilled water piping plumbing inside the building and in available pipe trench in the ground( with necessary clamps, vibration isolators and fittings but excluding valves, strainers, gauges etc) duly insulated with fire retardent quality expanded polystrene moulded pipe section of density 20kg/cu.m after a thick quote of cold setting adhesive (CPRX compound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium sheet cladding complete with type3, grade 1 roofing feltstrip(as per IS:1322 as amended up to date) at joints repairing of damage to building etc.as per specifications and as required bird mesh with cement plaster over the pipe complete in all respect. Note: The pipes of sizes 150 mm & below shall be MS 'C' class as per IS:1239 and pipes size above 150mm shall be welded black steel pipe heavy class as per IS:3589 from minimum 6.35mm thick MS Sheet for pipes upto 350mm dia and from minimum 7mm thick MS sheet for pipes of 400 mm dia and above. (Supply+Return)

65 mm dia ( 50 mm thick insulation)

50 mm dia ( 50 mm thick insulation)

Supply,fixing,testing and commissioning of following valves,strainers,gauges in the chilled water plumbing duly insulated to the same specifications as the connected piping and adequately supported as per specifications.BUTTERFLY VALVE (MANUAL) with CI body SS Disc, Nitrile Rubber Seal & O-Ring PN 16 pressure rating for chilled water/hot water circulation as specified.

65mm dia

50 mm dia

Supply, laying/fixing of following thickness insulation with fire retardent quality expanded polystrene modulded pipe section of density 20 kg/cu.m after a thick coat of cold setting adhesive (CPRX comp[ound) wrapping with 500g polythene faced hessain and finally applying 0.63mm aluminium sheet cladding complete with type3, grade 1 roofing feltstrip(as per IS:1322 as amended up to date) at joints repairing etc. as per specifications and as required bird mesh with cement plaster over the pipe complete in all respect.