REPAIR TO BLDG REHABILITATION AND EXTERNAL WALL TREATMENT AT CERTAIN BLDG AT INS TUNIR UNDER AGE B/R II AT NAVAL STATION KARANJA

Amount

Notes:- The Basic Rate quoted for Ser item No 2 to 37 are deemed to include for the following and nothing extra will be paid for these works: (i) Supplying, erecting and use of scaffolding upto required height (maximum 25 to 30 meters) with necessary H-frames, pipes, couplers, buckles, bracing, top platform with support railing at top etc. at all levels of building including carriage of the materials to the location, erecting, fixing the scaffolding and dismembering the same after working and taking away the scaffolding materials etc. complete as per direction of Engineer-in-charge. (ii) Supply, fixing & use of dust proof netting with all required accessories/ fixing arrangement so as to cover existing installations and arrest the materials generated during repair work in adjoining areas and to prevent damage or nuisance to the existing structure; including proper provision of netting system before start of work, removal after completion of work, carrying out regular cleaning etc. complete as per site requirement & directions of Engineer-In-Charge. (iii) Supporting the structural components temporarily during repair and strengthening works using heavy duty flat-headed steel pipes vertically in plumb, braced horizontally and diagonally at centre with each other using suitable heavy steel tubes, and resting on wooden blocks to support the structure provisionally during repairs and maintaining them in position for required duration, complete as directed by Engineer-in-charge. (iv) During execution of work column of the building shall be repaired in alternate basis.

(v) Structural rehabilitation work shall be got executed through one of the specialist firm(s) listed below as approved by GE prior to commencement of work:- (a) Rebuild Technologies Services Pvt Ltd 602, 6th Floor, Tulsee Chamber, Teen Petrol Pump, Thane (W) E (b) Techton Buildcons Pvt Ltd 203, Plot No 6, Milenium Plaza, Sakinaka Telephone Exchange Lane, Off AK Road Andheri E-Mumbai 72 (c) Sanrachana Structural Strengthening Pvt Ltd 103, 104, Monalisa CHS, Hariniwas Circle, Thane West - 400602 (d) USHTA Infinity Construction Co Pvt Ltd Ushta House, C-17/79 Krishna Industrial Estate, Gorwa, Vadodara - 390016 India (e) Gubbi Civil Engineers 18/26 Dev Prayag CHS, Opp Thanawala garage, Bhakti Mandir Road, Near Hari Nivas Circle Thane (W), Thane, Maharashtra 400602

Chipping , removing carefully concrete work by low impact hammer ,breaker without damaging the structure & cleaning and disposal of debris out side the premises etc, complete all as specified and directed by Engr-in-Charge. Hard concrete should not be removed by force.

Material and Labour for Clean existing reinforcement with wire/ rotary wire brush, making the surfaces free from loose material dirt etc. complete and applying two coats of alkaline rust converting primer FEOVERT of Krishna Conchem or Roff rust cleaner of Pidilite or Dr. Fixit Rust removal or ShaliRust of STP Ltd. on the rebars, including cleaning the reinforcement, wirebrushing to remove loose rust spalls, wash the rebars with clean water within 3 min and wipe it dry, complete all as specified and directed by Engr-in-Charge.

Material and Labour for applying two coats of Epoxy based Zinc primer in a span of four hours over the treated rebars and allow to dry for six hours, complete all as specified and directed by Engr-in-Charge. The application shall be by brush. Epoxy primer for steel of make / brand - Corroseal-ZR of Krishna Conchem or Dr. Fixit Epoxy zinc primer or equivalent as approved by GE all as directed.

Material and Labour for cleaning all loose laitance on the concrete substrate and applying one coat of epoxy bonding agent on exposed concrete surface to ensure bond between old concrete & new concrete by brush application, complete all as specified and directed by Engr-in-Charge. Make / brand : MONOBOND SBR of Krishna Conchem or Dr. Fixit epoxy bonding agent or Shalicrete URP of STP Ltd or equivalent as approved by GE all as directed.

Material and Labour for ready to mix polymer cement plaster with high quality polymer additives (Polymer plaster) with 4 MPa compressive strength of required thickness over the entire cleaned surfaces including all tools and tackles, etc. in damaged areas in 40 to 50 mm thickness including levelling profiling etc, complete all as specified and directed by Engr-in-Charge. Make:- Krishna Conchem, STP or equivalent as approved by GE all as directed.

Material and Labour for Drilling and fixing Rohibb Teflon nozzles in RCC members, including drilling holes of 12mm dia, 50 to 100mm deep holes. Works shall be carried out as under, complete all as specified and directed by Engr-in-Charge. :- (i) Cleaning of holes. Clean the holes by air blower prior to fixing nozzles. (ii) Fixing of nozzles. Insert 12mm dia. Rohibb Teflon nozzles in cleaned holes. External end of nozzles to be machine to receive outlet of grouting gun. Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing. Cure the system for minimum12 hours. (iii) Cutting of nozzles. Cut the nozzles by chisel after completion of grouting without damaging structural elements. (iv) In case crack upto 2mm wide, fix the injection nozzles directly over the cracks, at intervals of 6 to 9 inches, using a drilling machine. Fix PVC/MS nozzles in these holes with fast-setting epoxy putty & let it dry for 2 to 3 days. Also, seal the crack between the ports with epoxy putty. (v) In case where the crack is wider than 2mm upto 4 to 5mm, drill holes at the sides of the crack in a staggered fashion, at intervals of 6 inches and affix them with epoxy putty as mentioned above. (vi) Also, seal the face of the crack with a liberal application of the epoxy putty.

Material and Labour for Injecting of site mixed cement slurry grout, mixed in specified proportion containing cement, sand water with addition of plasticizers (approved make) & migratory corrosion inhibitors, water cement ratio shall be varied between 0.5 to 1.0 for each hole, shrinkage compensating cement slurry mixed to a lump free fresh creamy consistency ,Mixing shall be done by mechanical mixer continuously stirring mechanically to keep cement particles in suspension. Injection of approved/specified grout by means of pump at a pressure of 3-5 Kg/cm2 etc complete till the grout mix flows out from the nozzle indicating complete filling of grout in the holes drilled, complete all as specified and directed by Engr-in-Charge. Make / brand of Epoxy grout - Dr. Fixit Epoxy injection or EPCO KP-HP-250 of M/s Krishna Conchem or Shaligrout EI of STP Ltd or equivalent as approved by GE all as directed.

Material and Labour for Injecting low viscosity (3-5cps) high molecular weight monomer by pressure and using mechanized injector gun with accessories till nozzles refuses to accept the grout, Including, Mixing of materials : Mixing of material components(part a & b) in the required quantities as per manufacturer's instruction by weigh batching. Grouting : Fill the grouting gun with concrete penetrating corrosion inhibitor EPCO-KP-100/Protectsil CIT or Ferogard 903. Maintain desired pressure in the gun by air compressor; maintain the pressure at exit(2 to 3kg/cm2) by monitoring pressure gauge at exit. Grout the material through prefixed nozzles in the structural elements@ 100ml per nozzle. Repeat the process for all the nozzles, complete all as specified and directed by Engr-in-Charge.

Mild steel bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips all as specified and directed by Engr-in-Charge. Note:- Replacement of steel reinforcement with TMT bars of appropriate size where 30% of cross section is reduced including dismantling of rusted steel complete all as specified and directed.

Providing and fixing but 5mm dia and over upto and including 10mm dia additional main steel bar or stirrups of designed diameter in various structural elements like column ,beams and foundations including drilling ,bending, welding and fixing the bars with epoxy putty etc. (Steel provided on the basis of 1% of volume of concrete), complete all as specified and directed by Engr-in-Charge.. Note:- Replacement of steel reinforcement with TMT bars of appropriate size where 30% of cross section is reduced including dismantling of rusted steel complete all as specified and directed.

Material and Labour for Providing and applying jacketing around columns with Micro concrete (Molith-MC) M40 including all lifts, shuttering, drilling holes and fixing shear anchor as per specification, complete all as specified and directed by Engr-in-Charge. Note: Reinforcement shall be measured and paid separately.(Rates including jacketing, formwork and micro concrete.

Material and Labour for old external wall surface by wire brushing/grinding in order to remove dust, dirt, loose particles, laitance. Thereafter wash the surface with mechanical water nozzle with clean water & allow to dry. Fill visible cracks/ joints by crack seal compound and epoxy base joint filler including resin and hardener in proportion as per maufacturer's instruction & allow to dry for 24 hours. Apply one coat of water base primer (with mechanically airless paint sprayer machine) and allow to dry for 6 hours appx. Thereafter apply 02 coats of WB high build anti carbonating coating cum waterproofing (with mechanically airless paint sprayer machine) & match with brush at the interval of 08 hours between the coat and allow to dry to match the existing shade in camouflage pattern including or plain paint necessary scaffolding necessary security for the workers for any height, covering etc, complete all as specified and directed by Engr-in-Charge. Note:- External water proofing treatment on wall at any height of the building including acrylic paint shall be applied by mechanically Airless paint sprayer machine only.

Water treatment of chajjas/projected portion :- The surface to be free from standing water. Prime the surface with UV stable Polyurethane water proof liquid membrane at 400gm/sqm dilute with water 1:1 Apply 1st coat of ShaliPrime WP WB at 400gm / Sqm. Apply 1st coat of UV stable Polyurethane water proof liquid membrane White at 1Kg/Sqm. Place 40 Gsm Geotextile / FG Tissue as reinforcement followed by 2nd coat of UV stable Polyurethane water proof liquid membrane at 1kg/sqm. Ensure final curing of 36 hours before carrying out any further work. Extend water proofing treatment and terminate at the top of the edge of the parapet wall. Seal the Groove using repair mortar, complete all as specified and directed by Engr-in-Charge.

Material and Labour for injection chemical GLYPHOSPHATE (4% Concentration) of 20 ml or till refusal by making cut / injection in the stem of plant of roots at 30 mm and spraying with solution 25 ml GLYPHOSPHATE (4% concentration diluted with 1 litre of water) and removing the Plants / vegetation of following girth including penetrated roots complete including necessary scaffolding etc for plants / vegetation of size 0-20 cm girth for buildings upto and including 4 storeys, complete all as specified and directed by Engr-in-Charge.

Material and Labour Silicon gun paste around windows of any type and size incl any height of the building by using scaffolding, complete all as specified and directed by Engr-in-Charge.

Material and Labour for complete removal of existing treatment from old decorated plastered surfaces of walls by Vacuum based sanding machine complete all as specified, removal of nails etc & filling cracks/hole with putty, applying wall care putty upto 2 mm thick (multipurpose mixer shall be used for uniform and proper mixing of putty) and applying two coats oil emulsion distemper white or coloured over a coat of approved primer by auto roller complete all as specified & directed by Engineer-in-Charge.

Material and Labour for preparation of new or previously untreated plastered surfaces of walls and applying two coats of acrylic antifungal paint exterior grade paint plaint or camouflage pattern over one coat of primer, complete all as specified and directed by Engr-in-Charge.

Taking down eaves gutters and rainwater pipes (any size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including cleaning or refixing or removal to Store (measured overall as fixed along the centre line over fittings and accessories), complete all as specified and directed by Engr-in-Charge.

Supply and Fix PVC pipes single socketed in any length with rubber ring joints fixed to wall (160mm bore) including flat iron clamp for proper fixing complete all as specified and as directed by Engineer-in-Charge.

Supply and Fix PVC pipes single socketed in any length with rubber ring joints fixed to wall (110mm bore) including flat iron clamp for proper fixing complete all as specified and as directed by Engineer-in-Charge.

Supply and Fix PVC pipes single socketed in any length with rubber ring joints fixed to wall (75mm bore) including flat iron clamp for proper fixing complete all as specified and as directed by Engineer-in-Charge.

Supply and Fix in repairs PVC bends 160mm dia, complete all as specified and directed by Engr-in-Charge.

Supply and Fix in repairs PVC bends 110mm dia , complete all as specified and directed by Engr-in-Charge.

Supply and Fix in repairs PVC bends 75mm dia, complete all as specified and directed by Engr-in-Charge.

Supply and Fix PVC (SWR) branch piece single (single 'Y') equal or unequal 110mm bore, complete all as specified and directed by Engr-in-Charge.

Supply and Fix PVC (SWR) branch piece double (double 'Y') equal or unequal 110mm bore, complete all as specified and directed by Engr-in-Charge.

Supply and Fix Cast iron 150mm dia rainwater socketed pipes with cement joints, without ears all as specified and directed by Engr-in-Charge.

-Ditto- all as per item No 28.00 here-in-before, but 100 mm dia rainwater socketed pipe

Supply and Fix for 150 mm bore Bends or elbows, square, or obtuse, complete all as specified and directed by Engr-in-Charge.

Supply and Fix for 100 mm bore Bends or elbows, square, or obtuse, complete all as specified and directed by Engr-in-Charge.

Supply and Fix 100 mm dia Branch, double fixed all as specified and directed by Engr-in-Charge

Taking down cement plaster on brick walls or stone walls etc including raking out joint, hacking for key, scrubbing down with water etc including removing debris directed for a distance max upto 500 metres, complete all as specified and directed by Engr-in-Charge.

Material and Labour for rendering 15 mm thick on fair faces of stone or brick/concrete surfaces cement plaster in CM (1:4) , finished even and smooth without using extra cement, complete all as specified and directed by Engr-in-Charge.

Dismantling wall and ceiling boards or insulation boards, any thickness, any description, including cover fillets, complete all as specified and directed by Engr-in-Charge.

Supply and Fix for PVC False ceiling consisting of 600 mm x 600 mm, 8-10mm thick prelaminated self design including frame work made using aluminium T section of size (25mm x 25 mm, 19 gauge or 1mm thick) in square pattern of grid size of 600 x 600 mm. The aluminium frame work is supported from the ceiling with the help of GI wire/6 mm dia GI (upto 1200 mm length) adjusting and maintain for proper level to roof slabs by means of ceiling cleats made out of GI flat 40x3 mm size 60mm long and expansion hold fasteners 12.5mm dia 40mm long complete etc. The aluminium frame work is supported on side wall with the use of aluminium 25 mm X 25 mm angles complete as per direction of Engr-in-charge, Manufacturer's specification & drawing. (Note:- Items rate shall be include upto 20.00 meter height of buildings for scaffolding as all arrangement all as specified and directed by Engr-in-Charge.)

Supply and Fix in repair 8 to 10mm thick PVC false ceiling consisting of 600mm x 600mm prelaminated self design insert existing frame work without disturbing the other false ceiling and making good existing frame with all as specified and directed by Engr-in-Charge. (Note:- Items rate shall be include upto 20.00 meter height of buildings for scaffolding as all arrangement all as specified and directed by Engr-in-Charge.)

KG ENTERPRISES (BID ID -3173508)

Sagar Electricals (BID ID -3174735)

Mahadev Enterprises (BID ID -3174588)

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