NIT 22 item no. 7

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level: DSR’ 2018 4.1 1:3:6 (1 cement : 3 coarse sand (zone-III) : 6 graded stone aggregate 20 mm nominal size): DSR’ 2018 4.1.5

Providing and fixing 1mm thick M.S. sheet door with frame of 40x40x6 mm angle iron and 3 mm M.S. gusset plates at the junctions and corners, all necessary fittings complete, including applying a priming coat of approved steel primer. DSR’ 2018 10.5 Using M.S. angels 40x40x6 mm for diagonal braces. DSR’ 2018 10.5.1

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. DSR’ 2018 10.25 In stringers, treads, landings etc. of stair cases, including use of chequered plate wherever required, all complete. DSR’ 2018 10.25.1 (Actual weight will be paid)

Providing and fixing carbon steel galvanised (minimum coating 5 micron) dash fastener of 10 mm dia. double threaded 6.8 grade (yield strength 480 N/mm2), counter sunk head, comprising of 10 mm dia. polyamide PA 6 grade sleeve, including drilling of hole in frame, concrete/ masonry, etc. as per direction of Engineer-in-charge. DSR’ 2018 10.27 10 x 140 mm DSR’ 2018 10.27.4

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 up to 12 Meter or as desired by Engineering-charge. The sheet shall be fixed using self-drilling /self-tapping screws of size (5.5x 55 mm) with EPDM seal, complete up to 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. DSR’ 2018 12.50

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 Sqm. and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge. DSR’ 2018 14.1 With cement mortar 1:4 (1cement: 4 coarse sand) DSR’ 2018 14.1.2

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade. DSR’ 2018 13.61 Two or more coats on new work DSR’ 2018 13.61.1

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it thereafter .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc. wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineering-In-Charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding. DSR’2018 14.72

Providing and fixing hard drawn steel wire fabric of size 75 x25 mm mesh or other suitable size wire mesh to be fixed & firmly anchored to the concrete surface by means of “L” shaped mild steel shear key welded with existing reinforcement including the cost of materials, labour, tool & plants as approved by Engineer-In-Charge. DSR’ 2018 26.4

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismembering and stacking within 50 meters’ lead. DSR’2018 15.18 (Actual weight will be paid)

Providing and Supply Hydraulic excavator (3D) with driver and diesel as per direction of Engineer in charge. DSR’ 2018 Code No.0020

MK ENGG.CO.