Arresting Roof Leakages and Miscellaneous Civil Works in Annexes 1st, 2nd and 3rd Block in Engine Division, HAL BC.

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Average annual financial turn over during the last 3 years, ending 31st March 2023 of the previous financial year [ should not be less than 30% of Amount put to tender]

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Experience of having successfully completed similar works during last 7 years ending last day of previous month. [Latest work experience certificate may be uploaded] (i) THREE similar completed works each costing not less than the amount equal to 40% of the estimated cost. (ii) TWO similar completed works each costing not less than the amount equal to 50% of the estimated cost. (iii) ONE similar completed work each costing not less than the amount equal to 80% of Amount put to the tender.

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work done

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DECLARATION I

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Specification

Demolition of Surki / Brick / existing roof treatment work built in any ratio, complete as directed by EIC on first floor roof top including removing from first floor including stacking of serviceable material and disposal of unserviceable materia within 50 metres lead, etc., all complete as directed by Engineer-in-Charge.

Demolition of Concrete Demolishing of cement concrete [Nominal concrete 1:3:6 or Richer mix] manually / by mechanical means including disposal of material within 50metres lead, etc., all complete as directed by Engineer-in-Charge.

Demolition / Removing tiles work of size above 25mm to 40mm from the floor, drain including loose screeding / plastering, and removing the debris including stacking the material within 50metres lead and making the surface clean, etc., all complete as directed by Engineer-in-Charge.

Removing of damaged plastering / old plastering of any thickness / ratio on brick surface including raking out joints, hacking for key, scrubbing down with water, for receiving of new plaster including disposal of rubbish to the dumping ground within 50metres lead, with all necessary supports, etc., all complete as directed by Engineer-in-Charge. Note: Work to be executed at 6.50m height agency has to execute the work with necessary safety arrangement and work to be executed on old wall in patches (wherever plaster got damaged and also necessary precaution to be taken to covering machines / barrigating. Since the work to be executed in the running factory).

Removing the existing waterproofing treatment of APP / tarfelt sheet and cleaning of the roof slab with wire brush / scrapping at any height, etc., all complete as directed by Engineer-in-Charge.

Taking down existing AC rainwater pipes Taking down damaged AC rainwater pipes (approx 150mm of size or pattern), including all fittings, heads, shoes, bends, swan-necks, etc., including stacking the material within 50metres lead, etc., all complete as directed by Engineer-in-Charge. Note: Agency has to execute the work in running factory and the agency has to provide necessary barricating.

Disposal of Debris including Surki/Brickwork concrete material / Surki / Brick / construction work debris, built in any ratio along with APP membrane to out side the division at contractors own risk and cost responcibility, etc., all complete as directed by Engineer-in-Charge. [Distance exceeding 10.00km]

Supplying and laying Acatite poly propylene polymer (APP) modified pre fabricated water proofing membrane of 3mm thick the membrane shall be layered by using bonding material by torch on method by one layer of bitumen over and above on priming with the adjoining strips of roofing felt shall overlap to a minimum 10cms at sides and 15cms at ends respectively all as per manufacturer specification and direction. The consumption of the bitumen should not be less than 1.20Kgs per Sq m and measurement will be made only for Flat area including parapet height, etc., all complete as directed by Engineer-in-Charge.

Supplying and applying of silver paint one coat over APP membrane sheet as per directed by EIC. The consumption of the silver paint should not be less than 8 Sq m per Ltr, etc., all complete as directed by Engineer-in-Charge.

Cutting the grooves on RCC slabs minimum size 2" wide & depth 1"or upto loose materials & filling the grooves with cement mortar 1:3 & water proofing material over cement slurry, etc., all complete as directed by Engineer-in-Charge.

Glass Panels Removing old serviceable glass of any description, any thickness or size / Reinforced glass panels / air ventilation units fixed in the steel frames in north light roof Truss without damaging the glass and frame, etc., all complete as directed by Engineer-in-Charge.

Structural Steel Supply, Fabricating & Fixing structural steel sections for Cladding support using beam, tee, angle, channel or flat , MS Hallow tubular sections and other required sections including necessary scaffolding and applying a priming coat of approved steel primer using structural steel, etc., as required, etc., all complete as directed by Engineer-in-Charge.

Cement Concrete (1:2:4) Supplying, mixing and placing plain cement concrete (1:2:4) (1 Cement : 2 coarse sand derived from natural sources : 4 graded stone aggregate) of required thickness using 20mm nominal size down graded hard stone / granite aggregate in accordance with IS 456 for grading, levelling, slope forming, etc., including formwork, chamfers / fillet, mechanical mixing, transporting, vibrating, consolidation, levelling, curing, dewatering if any, all materials, labour, lead & lift, tools, scafooling / stagging, plant & machinery, keeping concrete well wetted during the curing period and protecting it in extreme weather conditions, including necessary rearrangement at entry point of downtake pipe, etc., all complete as directed by Engineer-in-Charge.

Plastering with CM (1:4) Plastering with CM (1:4), 15mm thick for brick / concrete surfaces, flat horizontal surfaces, finished smooth/fair with trowel for interior / exterior faces of walls, trenches, flooring and roof slab using extra cement including scaffolding, curing, etc., all complete as directed by Engineer-in-Charge.

Plastering (for Old walls in Patches) Plastering to brick / block wall with 15mm thick on the rough side of single or half brick wall of cement mortor (1:3) including leveling, curing and making the level smooth and at all heights, with staging, scaffold, etc., plaster drip course / groove in plastered surface or moulding to R.C.C. projections, etc., all complete as directed by Engineer-in-Charge. Note: work to be executed at 6.50m height agency has to execute the work with necessary safety arrangement and work to be executed on old wall in patches (wherever plaster got damaged and also necessary precaution to be taken to covering machines / barricading. Since the work to be executed in the running factory)

Wall painting with premium acrylic emulsion paint of interior grade, having VOC content less than 50grams / Litre of approved brand and manufactue, including applying two coats to achieve even shade and colour to give a uniform finish and including cleaning the dirt and other impurities, scrapping smooth and filling crevices., necessary scaffolding, etc., all complete as directed by Engineer-in-Charge. (The consumption of paint should not be less than 10Sq m / coat / Litre)

Painting Supplying & Painting interior surfaces of walls with two coats of enamel paint of approved shade and manufacturer conforming to IS including scaffolding preparing the existing painted surface by wire brushing to removing all dirt, etc., all complete as directed by Engineer-in-Charge.

Providing and applying synthetic enamel paint for structural members / pipes in Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture, filling joints, patti, etc., all complete as directed by Engineer-in-Charge.

Supplying and mixing Liquid water proofing compound of conplast X-421-IC or any other approved equivalent water proofer conforming to IS 2645:2003, mixed in concrete works and in cement plastering works as per manufacturer's specification, etc., all complete as directed by Engineer-in-Charge.

Brickwork (class A ) Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in perstructure above plinth level up to floor V level in all shapes and sizes in : Cement mortar 1:4 (1 cement : 4 coarse sand etc.., work will be executed on roof slab at various places for repairs at all height, etc., all complete as directed by Engineer-in-Charge.

Rain water Downtake Pipe: Supplying & fixing PVC pipes 150 / 160mm dia to withstand a pressure of 6Kgs / Cm square of approved quality fixed to walls with suitable PVC Bend / Door bend / Collar of PVC 150 / 160mm dia etc, as rain water down take pipe with all required accessories & necessary fittings, etc., all complete as directed by Engineer-in-Charge.

Fibre Glass sheet for cladding Supplying and fixing fibre glass reinforced translucent corrugated sheet 2mm thick fixed with self taping screws with washer lieu of screw including scaffoliding, etc., all complete as directed by Engineer-in-Charge.

Supplying and laying acid / alkali resistant tiles / bricks [230 x 115 x 38]mm as per IS 4860 Class I using 6mm thick silicate type acid resistant mortar conforming to IS 4860 Part I for bedding leveling joints 6 mm wide between Tiles / Bricks over rough plastered floor area incorporatiing required slope and gradient including cleaning the furface thorougtly, free of dusts and loose particles and dried and applying one quote acid resistant bitumen paint by brush. After the tiles are set the joints shall be pointed with CSNL resin mortar confroming to IS 4832 Part II.The tiling shall be air cured not to put into service for 10 to 15 days and shall not come in contact with water steam or chemicals. The tiling / bricks shall be put to service after curing period complete as per manufacturer's instrsuction, etc., all complete as directed by Engineer-in-Charge.

Fixing of wire mesh Glass for wall cladding in roof of Approximate size (0.60 x 1.50)m in existing structural steel frames with necessary clamps patti, screws etc., only glass will be provided by HAL, etc., all complete as directed by Engineer-in-Charge.

Rupees Eighty Three Lakh Sixty Two Thousand Three Hundred Forty Eight and Fifty Paise Only

Approximate Amount Put to Tender

Rupees Fifteen Lakh Five Thousand Two Hundred Twenty Two and Seventy Three Paise Only

Rupees Ninety Eight Lakh Sixty Seven Thousand Five Hundred Seventy One and Twenty Three Paise Only