Airports Authority Of India Tender

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

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

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.

Painting with Synthetic enamel paint of approved brand and manufacture of required colour to given an even shade: Two or more coats on new work

Renewing Wrought iron or M.S. Wheel or roller of steel door or gate and fitting and fixing the same with necessary clamps, nuts and bolts/welding and erection etc. complete. Wheel 50 mm dia and below

Providing and fixing G.I. chain link fabric fencing of required width in mesh size 50x50 mm including strengthening with 2 mm 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 4 mm

(b) For water proofing in Tcrntinal Brrilding & Rcsidcntial Quarlers : 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.

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.

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gms/litre, of approved manufacturer, of required shade and colour complete, as per manufacturer's specification. Two or more coats on new work including water thin able priming coat with cement primer having VOC content less than 50 gram/ litre

PProviding and laying APP (Atactic Polypropylene Polymer) modified prefabricated five-layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture 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 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 the authorised applicator of the manufacturer of membrane : 3 MM Thick

Providing and fixing APP (Atactic Polypropylene Polymer) modified prefabricated five-layer 2 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 membrance manufacture 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 manufacture of membrane. 2mm (for corrugated roof sheets)

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

Providing gola 75x75 mm in cement concrete 1:2:4 ( 1 cement:2 coarse sand:4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 9 1 Cement:3 fine sand) as per standard design: in 75x75 mm deep chase.

Making khurras 45x45 cm with average minimum thickness of 5 cm cement concrete 1:2:4 (1 cement: 2 coarse sand: 4 graded stone aggregate of 20 mm nominal size) over P.V.C. sheet 1 m x1 m x 400 micron, finished with 12 mm cement plaster 1:3 (1 cement: 3 coarse sand) and a coat of neat cement, rounding the edges and making and finishing the outlet complete

20 mm cement plaster of mix : 1:4 (1 cement: 4 coarse sand)

12 mm cement plaster of mix: 1:4 (1 cement: 4 Fine Sand) including providing and mixing water proofing material of make Berger/Pidilite or equivalent in plaster work in proportion recommended by the manufacturers and as per direction and satisfaction of Engineer-in-charge.

Cleaning of roof, terrace, chhajja etc. building i/c all Khurras & rain water pipe in these area as per direction of Engineer-in-charge and disposal of rubbish to outside of the building area. (only cleaned area will be measured).