Waterproof Treatment for Concrete Roofs of various Hangars / Buildings inside Foundry N Forge Division including TTI, HAL BC.

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Average annual financial turn over during the last 3 years, ending 31st March 2024 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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Specification

Demolishing brick work built in cement mortat (1:6) manually / by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead, etc., all complete as per direction of Engineer-in-Charge.

Dismantling / Taking out doors, windows and clerestory windows (steel or wood) shutter of area beyond 3Sq m including chowkhats, architrave, holdfasts, etc., complete and stacking within 50 metres lead, etc., all complete as per direction of Engineer-in-Charge.

Demolishing Nominal cement concrete 1:3:6 or richer mix (i/c equivalent design mix) manually / by mechanical means including disposal of material within 50 metres lead, etc., all complete as per direction of Engineer-in-Charge.

Dismantling Asbestos Cement sheet / GI sheet roofing including ridges, hips, Valleys and gutters, etc., and stacking the material within 50 metres lead, etc., all complete as per direction of Engineer-in-Charge.

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, etc., all complete as per direction of Engineer-in-Charge.

Disposal of moorum / building rubbish / malba / similar unserviceable, dismantled or waste material by mechanical transport including loading, transporting, unloading to approved municipal dumping ground for lead upto 10 km for all lifts, etc., all complete as per direction of Engineer-in-Charge.

Hacking of CC flooring including cleaning for surface, etc., all complete as per direction of Engineer-in-Charge.

Providing Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more, etc., all complete as per direction of Engineer-in-Charge.

Cement concrete 1:2:4, (1 cement : 2 coarse sand : 4 graded stone aggregate 20mm nominal size derived from natural resources), etc., all complete as per direction of Engineer-in-Charge.

15 mm cement plaster on rough side of single or half brick wall of mix 1:6 (1 cement : 6 fine sand), etc., all complete as per direction of Engineer-in-Charge.

Brickwork with common burnt clay machine moulded perforated F.P.S. (non modular) bricks of class designation 12.5 conforming IS : 2222 in exposed brick work including making horizontal and vertical grooves 10mm wide 12mm deep complete in cement mortar 1:6 (1 cement : 6 coarse sand), etc., all complete as per direction of Engineer-in-Charge. Note: Above plinth level upto floor V level

Wall painting with two coats of premium acrylic emulsion paint of interior grade, having VOC (Volatile Organic Compound ) content less than 50 Grams / Litre of approved brand and manufacture, including applying additional coats wherever required to achieve even shade and colour, etc., all complete as per direction of Engineer-in-Charge.

Finishing walls with Premium Acrylic Smooth exterior paint of required shade - Old work (Two or more coats applied @ 1.67 Ltr/10Sq m) on existing cement paint surafce, etc., all complete as per direction of Engineer-in-Charge.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3mm thick water proofing membrane, blackfinished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 Litre/Sq m by the same membrane manufacture of density at 25°C, 0.87-0.89 Kgs/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 650/450N/5Cm. Tear strength in longitudinal and transverse direction as 300/250N. 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 theauthorised applicator of the manufacturer of membrane (This work has to be done after cleaning & removing the existing debris/old & damaged water proofing materials from the terrace and the rate shall be inclusive of this work also), etc., all complete as per direction of Engineer-in-Charge. Note:- (1) Retention money @ 10% with GST on actual value of work done will be withheld for five years towards defect liability period (2) a Guarantee on Stamp Paper of prescribed value shall be furnished by the contractor along with the final bill

Extra for covering top of membrane with Geotextile, 120 gsm non woven, 100% polyester of thickness 1 to 1.25mm bonded to the membrane with intermittent touch by heating the membrane by Butane Torch as per manufactures recommendation, etc., all complete as per direction of Engineer-in-Charge. Note:- (1) Retention money @ 10% with GST on actual value of work done will be withheld for five years towards defect liability period (2) a Guarantee on Stamp Paper of prescribed value shall be furnished by the contractor along with the final bill

Providing and laying damp-proof course 40mm thick with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 12.50mm nominal size derived from natural sources), etc., all complete as per direction of Engineer-in-Charge.

Extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer's specification, etc., all complete as per direction of Engineer-in-Charge.

providing & fixing on wall face 110mm dia Unplasticised rigid PVC pipes conforming to IS:13592, Type A, including joining with seal ring conforming to IS:5382, leaving 10mm gap for thermal expansion (i) Single socketed pipes, etc., all complete as per direction of Engineer-in-Charge.

providing & fixing on wall face Unplasticised rigid PVC moulded fittings/ accessories / 110mm diameter Coupler conforming to IS:13592, Type A, including joining with seal ring conforming to IS:5382, leaving 10mm gap for thermal expansion, etc., all complete as per direction of Engineer-in-Charge.

Providing & fixing on wall face Unplasticised rigid PVC moulded fittings / accessories / 110mm bend conforming to IS:13592, Type A, including joining with seal ring conforming to IS:5382, leaving 10mm gap for thermal expansion, etc., all complete as per direction of Engineer-in-Charge.

Rupees Sixty Four Lakh Sixty Three Thousand Five Hundred Thirty One and Fifteen Paise Only

Approximate Amount Put to Tender

Rupees Eleven Lakh Sixty Three Thousand Four Hundred Thirty Five and Sixty Paise Only

Rupees Seventy Six Lakh Twenty Six Thousand Nine Hundred Sixty Six and Seventy Five Paise Only