Construction of Roof Top Rainwater Harvesting Structures at Panchayat Building at Govind Nagar Ward No. 04 and C/o Roof Top Rainwater Harvesting Structures at the newly constructed vegetable market at the Panchayat land under GPGN(Re-tender)

Amount

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+ 0.05 %) total coated thickness, Zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping screws complete :

Gutter (600 mm over all girth)

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

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.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :

1:4:8 (1 Cement : 4 coarse sand (zone-III): 8 graded stone aggregate 40 mm nominal size).

1:2:4 (1 Cement : 2 coarse sand (zone-III): 4 graded stone aggregate 20 mm nominal size).

Providing and placing on terrace (at all floor levels) polyethylene water storage tank, IS : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.

Centering and shuttering including strutting, propping etc. and removal of form for:

Foundations, footings, bases of columns, etc. for mass concrete.

12 mm cement plaster of mix :

1:4 ( 1 cement : 4 fine sand )

Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including necessary excavation, levelling & dressing & finishing the top smooth.

Finishing walls with Acrylic Smooth exterior paint of required shade :

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Providing and Fixing Chlorinated polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply including all CPVC plain & brass threaded fittings. This includes jointing of pipes & fittings with one step CPVC solvent cement, trenching, refilling & testing of joints complete as per direction of Engineer in charge. EXTERNAL WORK

15 mm nominal outer dia pipes.

Providing and Fixing PTMT bib cock of approved quality and colour.

15 mm nominal bore, 86 mm long, weighing notless than 88 gms.

Providing and Fixing 110 mm dia size rain water harvesting filter having double layer stainless steel 304 cartrige rust proof Noncorossion life working auto flush wall mounting having rainwater catchent above 90% and self cleaning mechanism.

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (I) Single socketed pipes.

110 mm diameter

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion

bend 87.50 110 mm bend

Providing and fixing up to floor five level precast cement concrete hollow block, including hoisting and setting in position with cement mortar 1:3 (1 cement : 3 coarse sand), cost of required centering, shuttering complete.

1:1½:3 (1 Cement: 1½ coarse sand (zone-III): 3 graded stone aggregate 20 mm nominal size) .

Supplying Filling, Spreading & levelling stone boulders of size range cm to 20 cm in recharge pit, in the required thickness, for all leads lifts, all complete as per direction of Engineer in charge.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :

Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture