Construction of Biofloc facility

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 kind of soil.

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 up to 50 m and lift upto 1.5 m. All kind of soil

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering -All work uoto plinth level: 1:4:8 ( 1 Cement: 4 fine sand : 8 graded stone aggregate 20 mm nominal size)

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto floor five level. Mild steel and Medium\Tensile steel bars.

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centring, shuttering, finishing and reinforcement--All work upto plinth level: 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size)

Centering shuttering including struttings, propping etc. and removal of form work for: Foundations, footings, bases for columns etc. for mass concrete with timber plank

First class brick work in foundation and plinth including cost of all materials as required complete:- In cement mortar 1:4 ( 1 cement : 4 fine sand ).

Half brick masonry work with first class bricks in superstructure upto floor five level including cost of all materials as required complete:- In cement mortar 1:3 ( 1 cement : 3 fine sand ).

12 mm cement plaster of mix: In cement mortar 1 : 3 ( 1 cement : 3 fine sand )

Neat cement punning.

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.

Providing structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete as required.

Supply & installation of pre painted Galvalume sheets (size, shape and pitch of corrugation as approved by Engineer-incharge) in 550mpa steel grade, made out of Cold rolled steel coated with Znic-Aluminium alloy coating of 43.5% Zn, 55% Al and 1.5% Silicon confirming to ASTM A 792/A782M, ASTMA90/A90M, ASTM AS 1937, ASTM A924/A92M, Alloy coating AZ150/AZ100, colour coated with high quality polyester coating, top coated of modified polyester of 20 micron, back side coat of 5 micron, having epoxy primer coat of 5 micron on both side. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling/self tapping screws of size (5.5x 55mm) with EPDM seal or with polymer coated J or L hooks, bolts and nuts 8mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead 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. 0.40mm thickness.

Supply & installation of pre painted Galvalume sheets roofing accessories in 550mpa steel steel grade, made out of Cold rolled steel coated with Znic-Aluminium alloy coating of 43.5% Zn, 55% Al and 1.5% Silicon confirming to ASTM A 792/A782M, ASTM A90/A90M, ASTM AS 1937, ASTM A924/A92M, Alloy coating AZ150/AZ100, colour coated with high quality polyester coating, top coated of modified polyester of 20 micron, back side coat of 5 micron, having epoxy primer coat of 5 micron on both side. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation. The sheet shall be fixed using self drilling /self tapping screws with EPDM seal or with polymer coated J or L hooks, bolts and nuts G.I. seam bolts and nuts, G.I. plain and bitumen wishers complete for Ridges/Valley/Gutter/Flashing of width 610mm: 0.40mm thickness

Providing and fixing 1mm thick M.S. sheet door with frame of 40x40x6mm angle iron and 3mm M.S. gusset plates at the junctions and corners, & with cleats with bolts & nuts, rivets, locking arrangement, handles, hooks & eyes, pinlets including embedding in cement concrete of required grade for fixing in position, all necessary fittings, including applying a priming coat of approved steel primer etc. complete as required:-Using M.S. angels 40x40x6 mm for diagonal braces.

Painting with synthetic enamel paint ( two or more coats ) of required colour of approved brand and manufacture on new work to give an even shade.(Payment shall be madr after submission of test certificate issued by manufacture)

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work: 80 mm dia. nominal bore

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-(b) 40mm dia. nominal outer dia

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- 25 mm dia. nominal outer dia

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end): (a) 40 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end): (b) 80 mm nominal bore

Providing and fixing in position green garden shade net- Genuine 90% Shade, Mesh,UV Stabilized Material, HDPE Virgin Polymer with aluminium profile and PVC coated zig zag spring

ASHISH LASKAR

Nitai Saha

Partha Pratim Saha

RAMEN DEBBARMA

KALYAN DEBROY