Repair of leakage seepage structural repairs and associated items in NOFRAI and II under the AOR of AGE BRII under GE Gomantak Vasco

Amount

Cleaning of rust from the reinforcing bars of any size and dia to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry and applying two coats of epoxy base zinc primer in a span of 4 hrs over the treated bar and allow to dry for 6 hours complete all as directed.

Chipping of unsound/weak concrete material 35-45 mm average thickness from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. complete with necessary scaffolding/ staging and disposal of debris outside MD land for all lead and lifts complete all as directed.

All as per item No. 2 above but average thickness 45-65 mm

All as per item No. 2 above but average thickness 65-85 mm

M&L for mixing and applying polymer modified cement mortar (with Sika monotop-122F or equivalent of Fosroc/ Dr. fixit) over Sikadur-32LP or equivalent of Fosroc/ Dr. fixit as bonding agent or equivalent brand in Fosroc/Dr. Fixit for 35-45 mm average thickness in two or three layers complete as per manufacturer instructions and all as directed at site. NOTE:- (i) 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. (ii) Work will be carried out by approved applicator of the firm.

All as per item No. 5 above but average thickness 45-65 mm

All as per item No. 5 above but average thickness 65-85 mm

M&L for mild steel TMT bars 10 mm 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 0.90 mm dia or securing with clips complete all as specified and directed.

M&L for mild steel TMT bars upto 8 mm dia, 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 0.90mm dia or securing with clips complete all as specified and directed.

Cutting down the plants/ trees of girth n.exc. 15 cm from roof tops/ sides of external walls of building, chajja, wall junctions & at junctions of rain water/ waste water pipes including taking out the roots entered into wall/ slab surfaces, making good surfaces with PCC 1:2:4 type B-0 or cement mortar (1:2) including repairing the GI/ CI/ PVC pipe joints which were affected due to cutting/ taking out process after applying suitable herbicide including making good the disturbed surfaces to match the adjoining surfaces complete with necessary scaffolding/ staging/ Jhula etc, with all necessary safety precautions complete all as directed and as specified.

Providing, erecting, removing and taking away steel tubular scaffolding/ formwork using vertical props, horizontal ties and diagonal bracings and other necessary members, nuts, bolts, clamps etc., retaining till the work is completed in all respects incl. curing etc. and after completion of work complete all as directed. Note:- Formwork to support existing structure and paid as floor area of structure

M&L for drilling 12 mm dia holes upto a depth of 75 mm maximum and fixing 8 mm dia L shaped anchor rods as shear connectors at every 300 mm c/c on the surface of the columns/ beams or any other structural member as the case may be, cleaning the surface and holes using water and making surface free from dust particles. Filling the drilled and cleaned holes to a minimum depth of 2/3rd of hole with Lokfix E77, making sure the resin has reached till the end of the hole, push the shear connector gently into the hole and finish the excess resin which comes out of the hole and allow shear connectors not to be disturbed for min 20 minutes complete all as per manufacturer instruction and all as directed.

Taking down existing roof treatment of any type, cleaning of roof top by brooming down with wire brush scrapping down with steel scrapper and roughening surfaces of old roof and washing down with water to remove dust etc. complete all as directed. NOTE:- Debris shall be removed outside Defence land without any extra cost to the Govt. complete all as directed.

M&L 25 mm thick plain cement concrete 1:2:4 type B-0 using 12.5 mm graded stone aggregate as in padding/leveling course on roof surface for correction of slope finished fair and even complete all as specified and directed.

M&L for rendering/screeding 10 mm thick on roof slab in cement mortar 1:3 mixed with liquid WPC @ 200 ml per bag of cement finished fair and even complete all as specified and directed. Note:- WPC shall be measured and paid separately

M&L for laying water proofing treatment using 4 mm thick APP modified membrane consisting five layers membrances with features as specified weighing not less than 3.50 kg per sqm reinforced with non woven polyester fiber @ 160 gm/Sqm laid over a coat of cold applied bituminous primer @ 0.40 kg/sqm by torching the membrance and sealing the over lap by 100 mm length side and 150 mm width side all as per manufacturer instructions including joints and changes in direction be curved with cement mortar 1:3 mixed with SBR latex @ 200 ml/bag of cement curved well before laying membrance and applying two finishing coats of solar reflective bituminous aluminium paint @ 0.10 Kg/Sqm (each coat) complete all as specified and directed Note: (i) Irrespective of lap the net covered area will only be measured for payment. (ii) Rate is inclusive of APP membrane, SBR Latex, primer, aluminium paint etc.

Demolition of Brick Work/ stone work / concrete block wall built in Cement Mortar including all quoins, arches, pillars, etc. of any descriptions, complete all as specified and as directed.

M&L for precast cement concrete block masonry, type C-1 (1:3:6) (20 mm graded aggregate) with solid blocks, exc 10 cm in width and setting in CM 1:6 complete all as specified and as directed.

Taking down cement or cement lime plaster on walls/ concrete/roof slab any description including racking out joints hacking for key, scrubbing down with water etc. complete all as specified and directed.

Providing and applying 15 mm thick ready mix external sand faced cement plaster with neat cement rendering at all locations in two coats on masonry (except stone masonry) and concrete surfaces with and including mixing water proofing compound to the first coat of plaster as per manufacturers specification, racking out joints, hacking of concrete surface, finishing, curing, scaffolding etc complete all as specified & directed.

M&L for rendering on fair faces of brick work or concrete surface or block masonary, 15 mm thick in two layers of 10 + 5 mm in CM 1:4, top layer of 5 mm thick mixed with liquid water proofing compound as per manufacturer instructions finished the surface even and smooth without using extra cement complete all as specified and directed. Note:- WPC shall be measured and paid separately

Supply only liquid water proofing compound

M&L for preparation of new surface of wall and applying two coats of oil bound distemper over a coat of chalk whiting complete all as specified and directed.

M&L for preperation of new surface wall/ceilling by scrapping/ rubbing, applying two coat of advanced anti-algal weather proof 100% acrylic smooth emulsion with silicon additives, over a coat of fibre reinforced elastomeric liquid water proofing membrane (Asian paint damp proof + ultima suprema, exterior anti fungal paint or equivalent), including making proper surface by applying ready mix preparatory wall care putty wherever required complete all as manufacturers instructions and as directed. Note:- The application of paint shall be done by the authorized applicator of the company and also the dealer/company shall appoint a person to inspect and validate the application of emulsion in stage wise manner.

M&L for complete removal of exisitng treatment by means of using jet spray machine washing down existing treatment and preperation of old surface wall/ceilling by scrapping/ rubbing, applying two coat of advanced anti-algal weather proof 100% acrylic smooth emulsion with silicon additives, over a coat of fibre reinforced elastomeric liquid water proofing membrane (Asian paint damp proof + ultima suprema, exterior anti fungal paint or equivalent), on old plastered surfaces of walls/ceilling and cornires brooming down or steel wire brushing scrapping down with steel scrapper smoke soot moulds moss and efflorescent slats brading oil and greasy spots etc. and making proper surface by applying ready mix preparatory wall care putty wherever required complete all as manufacturers instructions and as directed. Note:- The application of paint shall be done by the authorized applicator of the company and also the dealer/company shall appoint a person to inspect and validate the application of emulsion in stage wise manner.

Demolition of cement concrete unreinforced in ground floors and pavings n.exc. 15 Cm thickness (below or above ground level) complete all as specified and directed.

M&L for 40 mm thick cement concrete 1:2:4 type B-1 (using 20 mm graded stone aggregate) as in flooring finished even and smooth without using extra cement complete all as specified and directed.

M&L for cement concrete 1:4:8 type D-2 (using 40 mm graded stone aggregate) 75 mm thick as in sub base or in levelling course, finishing the surface even and rough to receive floor complete all as specified and directed.

M&L for 75 mm thick cement concrete type C-1 1:3:6 (using 20 mm stone graded crushed stone aggregate) as in plinth protection surface finished even and smooth without using extra cement including forming construction (dummy) joints 6 mm wide & 10 mm deep and filled with filler at an interval not exceeding 3 metre and at change of direction and necessary formwork complete all as specified and directed.

M&L for PCC 1:2:4 type B-1 (using 20 mm graded crushed stone aggregate) as in copings, over chajjas and the like including weathering, slightly rounded or chamfered angles and throating wherever required with and including necessary form work complete all as specified and directed.

Taking down shutters of any description not exc. 1 sqm each and refixing in same opening after easing and adjusting including refixing builders hardware as required and renewal of screws etc. complete all as specified and directed

Taking down shutters of any description exc 1 sqm & n. exc 2 sqm each and refixing in same opening after easing and adjusting including refixing builders hardware as required and renewal of screws etc. complete all as specified and directed

Taking down Chowkats or frames with shutter (without taking off shutters from the frame) exc. 1.50 sqm and n. exc. 4.00 sqm each complete all as specified and directed.

Taking down Chowkats or frames with shutter (without taking off shutters from the frame) n. exc. 1.50 sqm each complete all as specified and directed.

S&F aluminium powder coated (thickness or powder coating not less than 50 micron) frame and shutters for doors/ windows/ ventilators, sliding/ fixed/ openable type with one or more rebates including joining cleat for fixing complete with necessary fittings complete all as specified and directed.

S&F powder coated (any colour and thickness of coating not less than 50 micron) aluminium door shutters, side hung type without sash bars, aluminium sections weighing not less than 0.55 kg/m including necessary joining cleats, glazing clips, rubber packing, aluminium snap beading, screws etc. complete all as specified and directed.

M&L for 4.8 mm thick sheet glass ordinary quality and fixed with oil putty or rubber beading, wooden/aluminium beads and provsion of glazing pins where required in squares exceeding 0.50 Sqm in each pane fixed in wooden/ aluminium/ steel windows/ doors/ partition/ ventilators complete all as specified and directed. Note :- Aluminium glazing strip/ metal strip paid sepetately under respective item.

M&L for preparation of new or previously untreated wooden surfaces exceeding 10 cm width or girth and applying two coats of synthetic enamel paint over a coat of pink primer all as specified and directed.

Demolition of reinforced cement concrete(reinforcement cut as required to facilitate demolition) as in roof, floors (other than ground floors), beams, stair cases, landing, chajjas and similar suspended work complete all as specified and directed.

Dismantiling structural steel work including doors, gates but excluding framed truss etc. complete all as specified and directed.

S&F rolled mild steel in roof trusses(framed), trussed purlins, crane gantries, rails and fastenings, MS pipe for post and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. conforming to Fe- 290(Gde E-165) complete all as specified and directed.

Dismantling of plain or corrugated steel sheeting, any gauge, thickess including Nainital or similar pattern roofs covering complete all as specified and directed.

S&F Pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof covering/ cladding to wall, fixed with self tapping screws complete all as specified and directed.

S&F Pre- painted galvalume aluminium zinc coating GI based plain steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof covering, ridge, hip and vally gutters, fixed with self tapping screws as specified complete all as specified and directed.

Removing building materials by truck or tractor with using of if necessary JCB machine and trolly load min 5.00 Cum each load including loading, unloading and stacking at the destination and depositing out side defence land complete all as specified and directed.

S&F in position rotational moulded polyethylene water storage tanks 1000 lts capacity (cylinderical vertical with closed top) hoisted and fixed in position incl GI/CPVC tank nipple all as specified in SSR Part I including takiig down exisitng tank complete all as directed

S&F in position rotational moulded polyethylene water storage tanks 500 lts capacity (cylinderical vertical with closed top) hoisted and fixed in position incl GI/CPVC tank nipple all as specified in SSR Part I including taking down exisitng tank complete all as directed

Taking up or down existing GI tubing and connections and refixing old steel tubing and connections in new or old position(walls, ceiling, floors, etc.) for 20 mm dia pipes with and including all new fittings including making good the disturbed surface complete all as specified and directed.

Taking up or down existing GI tubing and connections and refixing old steel tubing and connections in new or old position(walls, ceiling, floors, etc.) for 25 mm dia pipes with and including all new fittings including making good the disturbed surface complete all as specified and directed.

Supply, fixing, laying & testing CPVC pipes 20 mm outer dia SDR 11 including Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors including taking down existing pipe complete all as specified and directed.

Supply, fixing, laying & testing CPVC pipes 25 mm outer dia SDR 11 including Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors including taking down existing pipe complete all as specified and directed.

S&F in repair 20mm dia ball brass valves, high pressure with polythene float and fly nut complete screwed for iron pipe or for brass ferrule complete all as specified and directed.

S&F in repair 25 mm dia ball brass valves, high pressure with polythene float and fly nut complete screwed for iron pipe or for brass ferrule complete all as specified and directed.

M&L for crack treatment on plastered/concrete surface of wall/ ceiling by forming ‘V’ groove of size 5 mm x 5 mm along the existing crack line using electrically operated angle grinder/ concrete saw blade followed by thorough cleaning the surface using air blower as directed and sealing the groove with solvent free, moisture tolerant, thixotropic, two part structural adhesive and epoxy repair mortar cum surface leveling compound such as Conbextra EP10 (Fosroc), Sikadur(R)-31(Sika) or equivalent in Dr. Fixit/ Asian Paints complete all as per manufacturer instruction and all as directed. Note:- Work will be executed only by authorized applicator certified by the respective manufacturer.

M&L for structural repair using micro concrete including preparation of concrete surface by removing all loose/ damaged concrete/ masonry surface and cleaning exposed sound concrete and applying epoxy based bonding agent such as Notibond EP(Fosroc)/ Sikadur (R) 32(Sika) or equivalent in Dr. Fixit/ Asian Paints including providing formwork/shuttering to prevent leakage during placement. Mixing and placing ready to use, non shrink, flowable micro-concrete such as Renderoc RG (Fosroc), SikaRep (R) Microcrete-4 equivalent in Dr. Fixit/ Asian Paints by pouring or pumping into prepared surface complete all as per manufacturer instruction and all as directed. Note:- Work will be executed only by authorized applicator certified by the respective manufacturer.

Supplying and applying High build elastomeric waterproofing coating based on pure, hydrophobic polyurethane, cold applied of spray / brush applied, membrane with an elongation of 550% and tensile strength of 2.5 N/mm2 as per ASTM D 2370, crack bridging ability of 3mm as per ASTM C1305, no leakage upto 7 bars of water pressure as per DIN 1048, shore A Hardness of min. 45 as per ASTM D 2240. The system includes final base preparation, water based primer and applying SmartCare PU Magnum or approved equivalent in two to three coats to achieve a min. thickness of 1.2 mm, etc. complete as per Manufacturere specifications and as directed.

Taking down existing chajja of angle iron with CGI/Galvalum sheet of size 1.80 m x 1.00 m and refixing the same with stainless steel nut, bolt, washer and plate and filling the holes with PCC 1:2:4 Type B-0 (using 12.5 mm graded stone aggregate) or cement mortar 1:3 complete all as specified and directed.

M&L for applying one coat of primer under two coats of smartcare PU Aqua of Asian paint or equivalent in Sika, fosroc and applying one coat of exterior emulsion paint to match the existing surface complete all as specified and directed.

Deepti Engineering Works (BID ID -3510875)

K M SUBHANAIAH (BID ID -3510956)