Annual Repair And Maintenance Work Of Residential Colony Of Sharda Power House, Lohiahead For The Year 2025-26- 1 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 kinds of soil. (DSR Item No 2.8.1 ) 2 Supplying and filling in plinth with Jamuna sand /Local Sand under floors, including watering, ramming, consolidating and dressing complete. (DSR Item No 2.27 ) 3 Treatment of soil under existing floors using chemical emulsion @ one litre per hole, 300 mm apart including drilling 12 mm diameter holes and plugging with cement mortar 1 :2 (1 cement : 2 Coarse sand) to match the existing floor : With Chlorpyriphos/Lindane E.C. 20% with 1% concentration (DSR Item No 2.35.3.1 ) 4 Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1 :4:8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size) (DSR Item No4.1.8 ) 5 Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) (DSR Item No4.1.3 ) 6 Reinforced cement concrete work in beams, suspended floors, roofs having slope up to 15° landings, balconies, shelves, chajjas, lintels, bands, plain window sills, staircases and spiral stair cases up to floor five level, excluding the cost of centering, shuttering, finishing and reinforcement, with 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size). (DSR Item No 5.3 ) 7 Centering and shuttering including strutting, propping etc. and removal of form for : Suspended floors, roofs, landings, balconies and access platform (DSR Item No 5.9.3 ) 8 Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Mild steel and Medium Tensile steel bars(DSR Item No 5.22.1 ) 9 Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:6 (1 cement : 6 coarse sand) (DSR Item No 6.1.2 ) 10 Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure above plinth level up to floor V level in all shapes and sizes in : Cement mortar 1:6 (1 cement : 6 coarse sand)(DSR Item No 6.4.2 ) 11 Half brick masonry with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in superstructure aboveplinth level up to floor V level Cement mortar 1:4 (1 cement :4 coarse sand)(DSR Item No 6.13.2 ) 12 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:(DSR Item No 10.2 ) 13 Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete(DSR Item No. 13.91 ) 14 Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.(DSR Item No15.56 ) 15 Demolishing cement concrete manually/ by mechanical means, including disposal of material within 50 metres lead as per direction of Engineer in charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix) (DSR Item No 15.2.1 ) 16 Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge :Above 40 mm nominal bore (DSR Item No 15..44.2 ) 17 Providing and fixing wash basin with C.I. brackets, 15 mm C.P. brass pillar taps, 32 mm C.P. brass waste of standard pattern, including painting of fittings and brackets, cutting and making good the walls wherever require: White Vitreous China Wash basin size 550x400 mm with a pair of 15 mm C.P. brass pillar taps (DSR Item No17.7.3 ) 18 Providing and fixing P.V.C. low level flushing cistern with manually controlled device (handle lever) conforming to IS : 7231, with all fittings and fixtures complete. 10 litre capacity - White (DSR Item No17.18.1 ) 19 Providing and fixing white vitreous china water closet squatting pan (Indian type) : Orissa pattern W.C. pan of size 580x440 mm(DSR Item No 17.13.2 ) 20 Providing and fixing white vitreous china pedestal type water closet (European type W.C. pan) with seat and lid, 10 litre low level whiteP.V.C. flushing cistern, including flush pipe, with manually controlled device (handle lever), conforming to IS : 7231, with all fittings and fixtures complete, including cutting and making good the walls and floors wherever required : W.C. pan with ISI marked white solid plastic seat and lid(DSR Item No 17.2.1 ) 21 Providing and fixing P.V.C. waste pipe for sink or wash basin including P.V.C. waste fittings complete. 32 mm dia(DSR Item No 17.28.1.1 ) 22 Providing and fixing 600x450 mm beveled edge mirror of superior glass (of approved quality) complete with 6 mm thick hard board ground fixed to wooden cleats with C.P. brass screws and washers complete.(DSR Item No.17.31) 23 Providing and fixing trap of self cleansing design with screwed down or hinged grating with or without vent arm complete, including cost of cutting and making good the walls and floors : Sand Cast Iron S&S as per IS- 1729 (DSR Item No17.60.2.2 ) 24 Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. External work 80 mm dia nominal bore(DSR Item No18.12.8 ) 25 Providing and fixing brass bib cock of approved quality : 15 mm nominal bore(DSR Item No18.15.1 ) 26 Providing and fixing brass stop cock of approved quality : 15 mm nominal bore(DSR Item No 18.16.1 ) 27 Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) : 80 mm nominal bore (DSR Item No 18.17.6 ) 28 Providing and fixing G.I. pipes complete with G.I. fittings and clamps, i/c cutting and making good the walls etc.work - Exposed on wall 15 mm dia nominal bore(DSR Item No 18.10.1 ) 29 Providing and fixing Stainless Steel A ISI 304 (18/8) kitchen sink as per IS: 13983 with C.I. brackets and stainless steel plug 40 mm, including IS: 13983 with C.I. brackets and stainless steel plug 40 mm, including painting of fittings and brackets, cutting and making good the walls wherever required : 610x460 mm bowl depth 200 mm(DSR Item No 17.10.2.2 ) 30 Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc.External work15 mm dia nominal bore(DSR Item No 18.12.1 ) 31 Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 20 mm dia nominal bore (DSR Item No 18.12.2 ) 32 Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 25 mm dia nominal bore (DSR Item No 18.12.3 ) 33 Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc. 40 mm dia nominal bore (DSR Item No 18.12.5 ) 34 Providing and fixing C.P. brass bib cock of approved quality conforming to IS:8931 : 15 mm nominal bore(DSR Item No 18.49.1 ) 35 Providing and fixing C.P. brass long body bib cock of approved quality conforming to IS standards and weighing not less than 690 gms. 15 mm nominal bore. (DSR Item No18.51.1 ) 36 Providing and fixing C.P. brass stop cock (concealed) of standard design and of approved make conforming to IS:8931. 15 mm nominal bore(DSR Item No 18.52.1 ) 37 Providing and fixing C.P. brass angle valve for basin mixer and geyser points of approved quality conforming to IS:8931 a) 15 mm nominal bore 15mm nominal bore (DSR Item No 18.53.1 ) 38 Providing & fixing Nahani Trap of approved quality (PSI 371 ) 39 Providing & fixing CP Brass Pillar Cockof approved quality (Non DSR Item ) (Approved rate of Old Agreement) 40 Providing/Arrangement of Plumber with kit for eight hours in a day.( As Per Rate Analysis ) 41 Providing/arrangement of Carpenter for eight hours in a day ( As Per Rate Analysis ) 42 Providing 1 No. beldar for 1 day, with all necessary working equipment as required and directed by E/I, including all complete. ( As Per Rate Analysis ) 43 Provinding welding machine of single Phase with welder, helper and electodes for repair and welding of gates, door, window etc. for eight hours in a day.( Approved rate of old agreement) 44 Fencing with angle iron post placed at required distance embedded in cement concrete blocks, every 15th post, last but one end post and corner post shall be strutted on both sides and end post on one side only and provided with horizontal lines and two diagonals interwoven with horizontal wires, of barbed wire weighing 9.38 kg per 100 m (minimum), between the two posts fitted and fixed with G.I. staples, turn buckles etc. complete. (Cost of posts, struts, earth work and concrete work to be paid for separately). Payment to be made per metre cost of total length of barbed wire used. With G.I. barbed wire (DSR Item No 16.18.1 ) 45 Providing and fixing uplasticised PVC connection pipe with brass unions 30 cm length 15 mm nominal bore .(DSR Item No 18.21.1.1 ) 46 Providing and fixing fly proof galvanized M.S. wire gauge to windows and clerestory windows using wire gauge with average width of aperture 1.4 mm in both directions with wire of dia 0.63 mm all complete.With 12 mm mild steel U beading (DSR Item No 9.51.2 ) 47 Providing and laying Ceramic glazed floor tiles of size 300x300 mm (thickness to be specified by the manufacturer) of 1st quality conforming to IS : 15622 of approved make in colours such as White, Ivory, Grey,Fume Red Brown, laid on 20 mm thick cement mortar 1:4 (1 Cement : 4 Coarse sand), including pointing the joints with white cement and matching pigment etc, complete(DSR Item No 11.37.) 48 Providing and fixing Ist quality ceramic glazed wall tiles conforming to IS : 15622 (thickness to be specified by the manufacture ) of approved make in all colours, shades except burgundy, bottle green, black of any size as approved by Engineer-in-Charge in skirting, risers of steps and dados over 12 mm thick bed of cement Mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3kg per sqm including pointing in white cement mixed with pigment of matching shade complete. (DSR Item No 8.31) 49 Providing and fixing glass strips in joints of terrazo/ cement concrete floors. 40 mm wide and 4 mm thick.40 mm wide and 4 mm thick(DSR Item No 11.13.1.) 50 Renewing glass panes, with putty and nails wherever necessary including racking out the old putty: Float glass panes of thickness 4 mm(DSR Item No 14.5.1 ) 51 Painting wood work with Deluxe Multi Surface Paint of required shade. Two or more coat applied @ 0.90 ltr/10 sqm over an under coat of primer applied @0.75 ltr/ 10 sqm of approved brand and manufacture(DSR Item No.13.48.2 ) 52 Painting Steel work with Deluxe Multi Surface Paint to give an even shade. Two or more coat applied @0.90 ltr/10 sqm over an under coat of primer applied @ 0.80 ltr/ 10 sqm of approved brand or manufacture(DSR Item No 13.48.3 ) 53 Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : One or more coats on old work. (DSR Item No 13.99.1) 54 Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work (DSR Item No 13.62.1 ) 55 Finishing wall with water proofing cement paint of required shade: old work (one or more coats applied @ 2.20 kg/10sqm) over priming coat of primer applied @ 8.80 litrs/10 sqm complete inculding cost of primer coat. (DSR Iteam No. 13.109.1) 56 Lettering with black Japan Paint of approved brand and manufacture (DSR item no 13.71) 57 Varnishing with varnish of approved brand and maufacture: one or more coats with copal varnish (DSR item no. 13.113.1) 58 Finishing wall with textured exterior paint of required shade: New work (Two or more coats applied @ 3.28 ltr/10 sqm) over and including priming coat of exterior applied @ 2.20kg/ 10sqm (DSR item no. 13.45.1) 59 Providing wood work in frames of doors, windows, clerestory windows and other frames, wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia & length ( hold fast lugs or dash fastener shall be paid for separately).Sal wood (DSR Item No9.1.2 ) 60 Providing and fixing 25 mm thick shutters for cup board etc. Ist class teak wood including neckel plated brigh finished M.S piano hings with necessary screws. (DSR item no. 14.26.1.2) 61 Taking out doors, windows and clerestory window shutters (steel or wood) including stacking within 50 metres lead, Of area 3 sq. metres and below. (DSR Item No15.13.1 ) 62 Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc.complete and stacking within 50 metres lead, Of area 3 sq. metres and below. (DSR Item No 15.12.1 ) 63 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 metres lead. (DSR Item No 15.18 ) 64 Demolishing R.C.C. work manually/ by mechanical means includingtacking of steel bars and disposal of unserviceable material within 50 metres lead as per direction of Engineer - in- charge.(DSR Item No 15.3 ) 65 Dismantling G.I. pipes (external work) including excavation and refilling trenches after taking out the pipes, manually/ by mechanical means including stacking of pipes within 50 metres lead as per direction of Engineer-in-charge : 15 mm to 40 mm nominal bore(DSR Item No 15.44.1 ) 66 Providing and fixing ISI marked flush door shutters conforming to IS: 2202 (Part I) non-decorative type, core of block board construction with frame of 1st class hard wood and well matched commercial 3 ply veneering with vertical grains or cross bands and face veneers on both faces of shutters 35 mm thick including ISI marked Stainless Steel butt hinges with necessary screws. (DSR Item No 9.21.1 ) 67 Providing and fixing Kiln seasoned and chemically treated Sheesham wood 35 mm thick shutters, panelled or panelled and glazed shutters for doors, windows and clerestory windows including ISI marked black enamelled M.S butt hinges with necessary screws excluding panelling which will be paid for separately. (DSR Item No .9.5.3.1 ) 68 Providing and fixing panelling or panelling and glazing in panelled or panelled and glazed shutters for doors, windows and clerestory windows (Area of opening for panel inserts excluding portion inside grooves or rebates to be measured). Panelling for panelled or panelled and glazed shutters 25 mm to 40 mm thick : Decorative plywood one side decorative veneer and commercial veneer on other face (Type 1) conforming to IS 1328 BWR Type (DSR Item No 9.7.4.1 ) 69 Providing and fixing IS : 12817 marked stainless steel butt hinges heavy weight) 100x60x2.50 mm(DSR Item No 9.71.2 ) 70 Providing and fixing ISI marked oxidised M.S. tower bolt black finish, 100x10 mm(DSR Item No 9.63.4 ) 71 Providing and fixing ISI marked oxidised M.S.sliding door bolts 300x16mm.(DSR Item No 9.62.1 ) 72 Providing and fixing ISI marked oxidised M.S. handles conforming to IS 100 mm (DSR Item No .9.66.2 ) 73 Providing and fixing fly proof galvanised M.S. wire gauge to windows and clerestory with 2nd class teak wood beading 62X19 mm. (DSR Item No 9.51.1 ) 74 12 mm cement plaster of mix 1:4 (1 cement : 4 coarse sand). (DSR Item No 13.4.1 ) 75 Providing and fixing on wall face unplasticised Rigid PVC rain water pipe110 mm diameter. (DSR Item No 12.41.2 ) 76 Cement concrete flooring 1:2:4 (1 cement: 2 coarse sand : 4 graded stone aggregate) finished with a floating coat of neat cement including cement slurry, but excluding the cost of nosing of steps etc. complete.40mm thick with 20mm nominal size stone aggregate. (DSR Item No 11.3.1 ) 77 Providing and fixing 18 mm thick gang saw cut, mirror polished, premoulded and prepolished, machine cut for kitchen platforms, vanity counters, window sills , facias and similar locations of required size, approved shade, colour and texture laid over 20 mm thick base cement mortar 1:4 (1 cement : 4 coarse sand), joints treated with white cement, mixed with matching pigment, epoxy touch ups, including rubbing, curing, moulding and polishing to edges to give high gloss finish etc. complete at all levels. Granite of any colour and shade. Area of slab over 0.50 Sqm (DSR Item No 8.2.2.2 ) 78 Providing edge moulding to 18 mm thick marble stone counters, Vanities etc., including machine polishing to edge to give high gloss finish etc.complete as per design approved by Engineer-in-Charge. Granite work(DSR Item No8.3.2 ) 79 Plain particle board flat pressed, 3 layer or graded wood particle board medium density Grade I, IS : 3087 marked(DSR Item No 9.7.5.1 ) 80 Chequerred precast cement concrete tiles 22 mm thick in footpath & courtyard jointed with neat cement slurry mixed with pigment to match the shade of tiles including rubbing and cleaning etc. complete on 20 mm thick bed of cement mortar 1:4 (1 cement: 4 coarse sand). Ordinary cement without any pigment. (DSR Item No 11.20.4 ) 81 Providing and fixing aluminium tower bolts ISI marked anodised (anodic coating 300x10 mm). (DSR Item No 9.97.1) 82 Providing and fixing aluminium hanging floor door stopper, ISI marked, anodised (anodic coating not less than grade AC 10 as per IS : 1868) transparent or dyed to required colour and shade, with necessary screws etc. complete. Single rubber stopper (DSR Item No 9.101.1) 83 Providing and fixing aluminium handles ISI marked anodised (anodic coating not 125 mm ) .(DSR Item No 9.100.1 ) 84 Providing and fixing chromium plated brass curtain rod having wall thickness of 1.25mm with two chromium plated brass brackets fixed with C.P. brass screws and PVC sleeves etc., wherever necessary complete .20 mm dia (DSR Item No9.46.2 ) 85 Providing and fixing glazing in aluminium door, window, ventilator shutters and With float glass panes of 5.50 mm thickness.(DSR Item No21.3.2 ) 86 Providing and fixing aluminium work for doors, windows, ventilators and partitions For fixed portion.) Powder coated aluminium (minimum thickness of powder coating 50 micron). (DSR Item No 21.1.1.2 ) 87 Providing and fixing aluminium work for doors, windows, ventilators and partitions with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS: 1285, fixing with dash fasteners of required dia and size, including necessary filling up the gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/ neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, Aluminium snap beading for glazing / paneling, C.P. brass / stainless steel screws, all complete as per architectural drawings and the directions of Engineer-in-charge. (Glazing, paneling and dash fasteners to be paid for separately). Powder coated aluminium (minimum thickness of powder coating 50 micron). . (DSR Item No 21.1.2.2 ) 88 Providing and fixing aluminium sliding door bolts ISI marked anodised (anodic 300x16 mm ) (DSR Item No 9.96.1 ) 89 Providing and laying vitrified floor tiles in different sizes (thickness to be specified by the manufacturer) with water absorption’s less than 0.08% and conforming to IS : 15622 of approved make in all colours and shades, laid on 20mm thick cement mortar 1:4 (1 cement: 4 coarse sand) including grouting the joints with white cement and matching pigments etc., complete.Size of Tile 600x600 mm)(DSR Item No 11.41.2 ) 90 Providing and laying vitrified floor tiles in different sizes (thickness to be specified by the manufacturer) with water absorption’s less than 0.08% and conforming to IS : 15622 of approved make in all colours and shades, in skirting, riser, of steps, over 12 mm thick bed of cement mortar 1:3 (1 cement: 3 coarse sand) including grouting the joints with white cement and matching pigments etc., complete.Size of Tile 600x600 mm)(DSR Item No 11.46.2 ) 91 Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50mm including strengthening with 2mm dia wire or nuts, bolts and washers as required complete as per the direction of Engineer-in-charge.Made of G.I. wire of dia. 4mm, . (DSR Item No 16.70.1 ) 92 Neat cement punning.(DSR Item No 13.18 ) 93 Providing and placing on terrace (at all floor levels) polyethylene water storage tank, ISI : 12701 marked, with cover and suitable locking arrangement and making necessary holes for inlet, outlet and overflow pipes but without fittings and the base support for tank.. (DSR Item No 18.48 ) 94 Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete. (DSR Item No 13.80 ) 95 Apply priming coats with primer of approved brand and manufacture, having low VOC (Volatile Organic Compound) content with water thinnable cement primer on wall surface having VOC content less than 50 grams /litre. (DSR Item No 13.85.3) 96 S/F of welded mesh of size (75x25 ) mm of 10 gauge over M. S angle frame with M.S Flat with nuts and bolts ,welded as required including cost of drilling holes ,bolts ,nuts ,washers welding etc.as required cost of all materials,labour and T & P etc.required for proper completion of the work ,except cost of angle iron and flat. (As per Rate Analysis) 97 Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.(DSR Item No 15.60 ) 98 Painting with aluminium paint of approved brand and manufacture to give an even shade .Two or more coats on new work. (DSR Item No. 13.63.1) 99 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.(DSR Item No 12.50 ) 100 Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+ 0.05 %) total coated thickness, 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 using self drilling/ self tapping screws complete : Ridges Plain (500-600 mm) (DSR Item No 12.51.1) 101 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 weldingand bolted with special shaped washers etc. complete. Hot finished seamless type tubes.(DSR Item No.10.16.2) 102 Distempering with Ist quality acrylic distemper (ready mixed ) having VOC (Volatile Organic Compound) content less than 50 gram/litre of approved brand and maufacturer including applying additional coats wherever required to achieve even shade and colour.Old work (One or more coats) (DSR Item No 13.81.1 ) 103 Distempering with oil bound washable distemper of approved brand and manufacture to give an even shade : New work (two or more coats) over and including water thinnable priming coat with cement primer (DSR Item No. 13.41.1 ) 104 Treatment to cracks by using polyurethane based single component permanently elastic joint sealent of Groove size (7.5 mm x 12.5 mm) including cost of all material labour T & P etc.( PWD SOR 2014-15 Item No 83332 1-26-8) 105 Water proofing treatment by highly flexible mixed blended polymer in three layers mixed with neat cement (1:3) (1 blended polymer : 3 cement ) .Mixed blended polymer is used in place of bio degradable epoxy..( PWD SOR 2014-15 Item No 83334 1-26-8) 106 Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured of density at 25°C, 0.87 - 0.89 kg/litre and viscocity 70 - 160 cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane : 3 mm thick (DSR 2018 Item 14.90.1) 107 Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion of 1:4 (1 cement: 4 graded coarse sand with polymer minimum 2% by wt. of cement used) as per specifications and directions of Engineer-in-charge. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2). 12 mm average thickness.(DSR Item No 26.32.1 ) 108 Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of: G.S. Sheet (DSR Item No 15.28.1)
