Construction of shed for Waste solvent collection at CSIR-NCL.

Amount

Earth work in excavation by mechanical means (Hydraulic excavator)/manualmeans over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10sqm on plan) including getting out and disposal of excavated earth leadupto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge. All kinds of soil

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width aswell as 10 sqm on plan) including getting out and disposal of excavatedearth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge.hard rock

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:3:6 (1 Cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 20 mm nominal size)

Providing and laying in position cement concrete of specified gradeexcluding the cost of centering and shuttering - All work up to plinthleve: 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stoneaggregate 20 mm nominal size)

52 mm thick cement concrete flooring with concrete hardener topping,under layer 40 mm thick cement concrete 1:2:4 (1 cement : 2 coarsesand : 4 graded stone aggregate 20 mm nominal size) and top layer 12mm thick cement hardener consisting of mix 1:2 (1 cement hardenermix : 2 graded stone aggregate 6 mm nominal size) by volume, hardeningcompound mixed @ 2 litre per 50 kg of cement or as per manufacturer'sspecifications. This includes cost of cement slurry, but excluding thecost of nosing of steps etc. complete.

Pointing on stone work with cement mortar 1:3 (1 cement : 3 fine sand) : flush/ ruled pointing

Filling available excavated earth (excluding 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 1KM by mechnical transport and lift upto 1.5 m.

Brick work with common burnt clay modular bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

Steel work in built up tubular (round, square or rectangular hollow tubes etc.) trusses etc., including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer, including welding and bolted with special shaped washers etc. complete. Hot finished welded type tubes

Steel work welded in built up sections/ framed work including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required. In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with 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. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineerin- charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories0.50 mm (+0.05 %) total coated thickness, Zinc coating 120 gramsper sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxyprimer on both side of the sheet and polyester top coat 15-18 micronsusing self drilling/ self tapping screws complete : Ridges plain (500 - 600mm)metre416.30

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

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work.

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).

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth up to 30 cm measured at a height of 1 m above ground level and removal of rubbish up to a distance of 50 m outside the periphery of the area cleared.

JIGNESH KUNWARJI HARIA

R K Construction