Construction of Three Technologically Enabled Class Room at Second floor over the First Floor beside Science Building North - West side of the Cooch Behar College Campus

Ordinary cement concrete (1:1.5:3) with graded River Bazree (20mm size) excluding shuttering and reinforcement .if any ,in 2nd floor.

Ordinary cement concrete (1:1.5:3) with graded River Bazree (20mm size) excluding shuttering and reinforcement .if any ,in 3rd floor.

Reinforcement for reinforced concrete work in all sorts of structure including distribution bars, stirrups, binders etc. including supply of rods , initial strating and removal of loose rust if necessary , cutting to placing in proper position and binding with 16 G black annealed wire at every inter-section, complete as per drawing and direction. a) in2nd floor

Reinforcement for reinforced concrete work in all sorts of structure including distribution bars, stirrups, binders etc. including supply of rods , initial strating and removal of loose rust if necessary , cutting to placing in proper position and binding with 16 G black annealed wire at every inter-section, complete as per drawing and direction. a) in 3rd floor

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness etc---etc. after completion of works. A) 2nd floor

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness etc---etc. after completion of works. A) 3rd floor

125 mm thick brick work with 1st class bricks in cement mortar (4:1) a)2nd floor

Wood work in door and window frame fitted and fixed in position complete including a protective coat of painting at the contact surface of the frame exluding cost of concrete, Iron Butt Hinges and M.S clamps.(The quantum should be correted upto three decimals). a) Sal : Siliguri i) In 2nd floor

Supplying, fitting and fixing M.S.clamps for door and window frame made of flat bentbar,end bifurcated with necessary screws etc.by cement concrete (1:2:4) as per direction. (Cost of concrete will be paid separately) (a) 40mm X 6mm, 250mm Length

Panel shutters of door and window ,as per design (each panel consisting of single plank without joint), including fitting and fixing the same in position but excluding the cost of hinge and other fittings. In ground floor. (In case of non-supply of single plank,penal rate of reduction of 20% will be made) i) 50 mm thich shutter with 25 mm thick Battens A) 1st class quality Indian Teak wood

Iron butt hinges of approved quality fitted and fixed with steel screws, with ISI mark. (i) 100mm. X 58mm. X 1.90mm

Glazed shutters of doors, windows, fan light, clerestory windows etc. as per design (with ordinary glass of 7.4kg./sq.m.3mm.Thick) fitted with putty bed and teak wood bead and nails including fittingand fixing shutter in position but lass,putty,woodedbeads etc.will be paid separately. In ground floor. (i) 25mm thick shutters. (a) Ordinary Teak Wood

(a) M.S.or W.I. Ornamental grill of approved design joints continuously welded with M.S, W.I. Flats and bars of windows, railing etc.fitted and fixed with necessary screws and lugs in ground floor. (Addextra@1%foreachaddl. floor upto 4th floor and @1.25% for each addl. floor above 4th floor) (i) Grill weighing above 10 Kg./sq.mtr and up to 16 Kg./sq. mtr.

Anodised aluminium barrel / tower / socket bolt (full covered) of approved manufactured from extruded section conforming to I.S. 204/74 fittedand fixed with cadmium plated screws: (i) 50mm long x 10mm dia. bolt. A) 225 mm X 10 mm dia. bolt

Anodised aluminium barrel / tower / socket bolt (full covered) of approved manufactured from extruded section conforming to I.S. 204/74 fittedand fixed with cadmium plated screws: (i) 50mm long x 10mm dia. bolt. A) 100 mm X 10 mm dia. bolt

i) Iron hasp bolt of approved quality fitted and fixed complete (oxidised) with 16mm dia rod with centre bolt and round fitting. (a) 200mm lon

Anodised aliminium D-type handle of approved quality manufactured from extruded section conforming to I.S. specification (I.S. 230/72) fitted and fixed complete: (a) With continuous plate base (Hexagonal/ Round rod) (i) 75 mm grip x 10 mm dia rod.

Plaster (towall, floor, ceilingetc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding /staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] a) 2nd floor (i) With 1:6 cement mortar (a) 20 mm thick plaster

(i) With 1:6 cement mortar (a) 15 mm thick plaster

(i) With 1:4 cement mortar (a) 10 mm thick plaster

Neat cement punningabout 1.5mmthick inwall, dado,window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m.

Rendering the Surface of walls and ceiling with White Cement base WATER PROOF wall putty of approved make & brand.(1.5 mm thick)

Acrylic Distemper to interior wall, ceiling with a coat of solvent based interior grade acrylic primer (as per manufacturer's specification) including cleaning and smoothning of surface

Priming one coat timber or plaster surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

Priming one coat onsteel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary : (a) On timber or plastered surface : With super gloss (hi-gloss) (i) Two coat (with any shade except white in shade)

(a) On steel surface : With super gloss (hi-gloss) (i) Two coat (with any shade except white in shade)

Applying decorative cement based paint of approved quality after preparing the surface including scraping the same thoroughly (plastered or concrete surface) as per manufacturer's specification. In 2nd floor: (i) One coat on old surface.

Providing and fixing of false ceiling with powder coated exposed G.I. grid suspension system (E-Grid T 2430/1510 or equivalent load carrying capacity with mid span deflection not exceeding 1/360 span with hanger spacing of 1200mm c/c ) consisting of Main Runner 3600 mm long, Cross Tee 1200 mm / 600 mm long and Wall Angle. The Wall Angle shall be fixed on PVC Dash Fasteners on the perimeter of the wall by steel screws with distance 300mm c/c. The Main Runners to be placed @ 1200 mm. The Cross Tee 1200mm will be inserted in the pre-cut slots of Main Runner at a regular interval of 600 mm to form a modular grid of 1200mm X 600mm. Additional Cross Tees of 600 mm shall be placed perpendicular to the Cross Tee 1200 mm long to finally form a grid of 600 mm X600 mm. Grid of module size 600 mm X 600 mm shall be supported by 6 mm dia G.I. wire from purlins / soffit. 4 mm thick High Pressure Steam Cured Non Asbestos pearl designer Fibre Cement Standard Ceiling Board (Density > 1500 Kg/m3) of size 595 mm X 595 mm, conforming IS 14862 & Type A Category IV of ISO 8336, tested as per AS-1530 part 3 & BS-476 Part 4,5,6,7 & 8, should be placed in the Grid module to form a False Ceiling. All complete as per the drawing & directions of Engineer-in-charge

Supplyingand laying true to lineand level vitrified tiles of approved brand (size not less than 600mmX600mmX10 mmthick) in floor, skirtingetc. set in20mm sand cement mortar (1:4) and 2mm thick cement slurry back side of tiles reusing polymerised adhesive (6mm thick layer applied directly over finished artificial stone floor/Mosaic etc without any backing course) laid after application slurryusing1.75Kgof cement per sqM below mortar only, joints groutedwithadmixtureofwhite cement and colouring pigment tch with colour of tiles / epoxy grout materials of approved make as directed and remova lof wax coating of top surface of tiles with warm water and polishing the tiles usings of tanddry cloth upto mirror finish complete including the cost of materials, labour and all other incidental charges complete true to the manufacturer's specification and direction of Engineer-in-Charge. (White cement,syntheti cadhesive and grout material to be supplied by the contrr]e

M.S. structural works with hollow sections (square or rectangular shape) conforming to IS: 806-1968 & IS:1161-1998) connected to one another with bracket, gusset, cleat as per design, drawing & direction of Engineer-in-Charge complete including cutting to requisite shape & size, fabrication including metal arc welding conforming to IS: 816-1969 & IS: 9595 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. Payment to be made on the basis of calculated weight of structural memebrs of MS Holow Section as specified in relevent IS code in finished work. Payment for gusset, bracket, cleat may be made by adding the actual weight of such items with weight of finished structural members. The rates are considered for a hight of erection 8 m. / 2nd floor level from the ground. Add 1.5 % extra over the rate for each additional floor or 4m. beyond the initial 8 m. or part thereof.

Supplying, fitting & fixing Zn-Alalloy (55% Al & 45%Zn) coating of 150 grams per sq. metre (followed by colour coated on bothside) steel sheet work having minimum yield strength of 550 Mpa of trapizoidal profile of approved make the supporting frame work) fitted and fixed with 55mm & 25mm self tapping screw, EPDM Washer 16mm dia & 3mm th.washer etc. complete with 150mm end lap and one corrugation minimum side lap.(Payment to be made on area of finished work)

Aluminium sheet ridging fitted with self tapping screws, EPDM washers etc complete.(Minimum 225mm end lapping). (A) 300 mm lapping each way

Supplying, fitting & fixing UPVC pipes A-Type and fittings conforming to IS:13592-1992 with all necessary clamps nails, including making holes in walls, floor etc. cutting trenches in any soil through masonry concrete mending good damages including joining with jointing materails (Spun Yarn, Valamoid/Bitumen/M-Seal etc) complete

Electrical works to be executed by the instruction of the Engineering-in-Charge (Payment to be made as per work done measurement and as per current PWD Electrical schedule)