North Bengal Development Department Tender

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm. as directed and consolidating same by thorough saturation with water ramming complete, including the cost of supply of sand. (Payment to be made on measurement of finished quantity)

Supplying and laying Polythene Sheet (150gm / sq.m.) over damp proof course or below flooring or roof terracing or in foundation or in foundation trenches.

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes. a) Pakur Variety

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes. a) Pakur Variety

Hire and labour charges for shuttering with centreing and necessary staging upto 4 m. using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams, columns, lintels curved or straight including fitting, fixing and striking out after completion of works. (upto roof of ground floor) f) 25mm. To 30mm. Shuttering without staging in foundation etc.

(b) Supplying and Laying in the specified pattern of Interlocking Concrete Block Pavements (ICBP) with concrete blocks (with Concrete grade as specified as per Table 1 of IS 15658:2006) manufactured from BIS licensee manufacturer, with spacer nib (Small protruding profiles on the vertical face of a paver block used as a device for keeping minimum joint gap in between the paving blocks, as per Cl. No. 3.26 of IS: 15658) and of specified size and shape with aspect ratio (The ratio of length to thickness of a paver block, as per Cl. No. 3.3 of IS: 15658) as per Table 2 of IS: 15658 with flexural strength/breaking load as per Annexure G of IS: 15658, on the prepared base course of specified CBR as per Table 1 of IRC SP 63 (2018) or else as mentioned in design and drawing with a cushion of compacted bedding sand of 25-35 mm thick (grading of the bedding sand as per clause 6.5.1 of IRC SP-63) and filling up the gaps in between paver blocks with joint filling sand (the grading of the joint filling sand will be as per clause 6.5.2 of IRC SP 63) and completing the edges with cut blocks as per Cl. No. 8.7 of IRC SP-63 (2018) with proper confinement of bedding and joint filling sand, compaction, levelling and filling up of the edge gap. 50mm thick (ii) Coloured Decorative

Brick work with 1st class bricks in cement mortar (1:4) a) In foundation and plinth

Supplying,fitting & fixing granite slab 15mm to 18mm thick in floor, lobby, stair, landing and treads etc. over 20mm (avg) thick base of cement morter (1:2) laid with white cement slurry @ 4.40Kg per Square meter before placing of granite and jointed with white cement slurry @ 2.0 Kg per square meter with necessary pigments and complete as per direction of Engineer-in-charge including cost of all materials, labours, curing and roughening of concrete surface complete. In ground floor (a) Area of each Granite slab upto 0.60 Square meter.

Supplying, fitting & fixing granite slabs 15mm to 18 mm. thick with uniform texture & without decorative veins in columns, wall, facia,rise etc. with 15 mm thick [avg] cement mortar (1:2) including making suitable arrangements to hold the stones properly by brass / copper hooks including pointing in cement mortar (1:2) (1 white cement : 2 marble dust) with admixture of pigment matching the stone shades all complete as per direction of the Engineer-in-charge including cost of all materials, labours, scaffolding, staging, curing and roughening of concrete surface complete. [Using cement slurry at back side of granite @ 4.4 kg/sq.m & white cement slurry for joint filling @ 1.8 kg/sq.m] In ground floor (a) Area of each Granite slab 0.6 to 1.0 Square meter.

Supplying, fitting & fixing 1st quality Ceramic tiles in walls and floors to match with the existing work & 4 nos. of key stones (10mm) fixed with araldite at the back of each tile & finishing the joints with white cement mixed with colouring oxide if required to match the colour of tiles including roughening of concrete surface, if necessary or by synthetic adhesive & grout materials etc. (B) Wall With Sand Cement Mortar (1:3) 15 mm thick & 2 mm thick cement slurry at back side of tiles using cement @ 2.91 Kg/Sq.m & joint filling using white cement slurry @ 0.20kg/Sq.m. (a) Area of each tile upto 0.09 Sq.m (i) Coloured decorative

Hire and labour charges for shuttering with centreing and necessary staging upto 4 m. using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams, columns, lintels curved or straight including fitting, fixing and striking out after completion of works. (upto roof of ground floor) (c) Steel shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups,binders etc. including supply of rods, initial straightening and removal of loose rust (if necessary), cutting to requisite length, hooking and bending to correct shape,placing in proper position and binding with 16 gauge black annealed wire at every inter-section, complete as per drawing and direction. a) For works in foundation, basement and upto roof of ground floor/upto 4m. i) Tor steel/Mild steel I. SAIL/ TATA/RINL a) In Ground Floor

M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of ngineer-in charge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1969 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rate includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental chages such as electricity charges, labour insurance charges etc. I) For structural members of specified sections weighing less than 22.5 Kg./m

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

A) 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 : (b) On steel or other metal surface : With super gloss (hi-gloss) - (iii) One coat (with any shade except white)

Supplying, fitting, fixing bolts with nuts, washer: (i) 10 to 16 mm dia: (c) Length above 150mm.

Supplying, fitting & fixing Zn-Al alloy (55% Al & 45% Zn) coating of 150 grams per sq. metre (followed by colour coated on both side) steel sheet work having minimum yield strength of 550 Mpa of trapizoidal profile of approved make(excluding the supporting frame work) fitted and fixed with 55 mm & 25 mm self tapping screw, EPDM Washer 16 mm dia & 3 mm th. washer etc. complete with 150 mm end lap and one corrugation minimum side lap. (Payment to be made on area of finished work). (i) In Roof:- a) With 0.5 mm thick sheet

Galvanised iron sheet ridging fitted with necessary bolts, screws, washers etc complete.(225mm end lapping) (A) 300 mm lapping each way (a) With 0.60 mm sheet

Galvanised iron sheet eaves gutter fitted and fixed with necessary 50 mm X 6 mm M.S flat bar clamps bent to design, bolts, nuts, washers etc. complete. Eaves gutter made of 0.63 mm. sheets.(300mm End lapping) b) 300 mm. wide gutter

Supplying, fitting, fixing bolts with nuts, washer: (i) 10 to 16 mm dia: (c) Length above 150mm. 300 mm. long

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 structures etc if necessary and mending good damages including joining with jointing materails (Spun Yarn, Valamoid/Bitumen/M-Seal etc) complete. A) UPVC Pipes :

D) Shoe iii) 160 mm. Dia.

c) Bend 87.5 degree iii) 160 mm. Dia.