Water proofing of NITB at B.M. Airport, Ranchi.

Amount

Note: The tender rate should be inclusive of all taxes, duties, cess, fee , royalty charges etc. levied under any statute but exclusive of GST.

Proofing and spray applying two component hybrid polyuria polurethane waterproofing system at all levels for podium garden waterprofing by the manufactuer or his approved applicator consisting of following operations: a) Brushing and vaccum cleaning the surgface to make free from any loose material, oil, grease, burr, dirt , dust etc. b) Repairing the surface if required, as per recommendationof manufactuer or his approved applicator to make it water tight for whichnothing extra shall be paid. c) Providing and applying by spray or brush,two component solvent free resin/ epoxy primer mixed in proportion by volume/weight as recommended by manufacturer over cement concrete surface in dry condition, having consumption varies from 0.20 to 0.40 kg/sqm depending in the porosity and undulations of the surface. d) Providing and sprinkling washed coarse sand, as recommended by manufacturer over freshly laid primed tacky surface @ 0.25 to 0.40 kg/sqm as directed by Engineer -in-charge. e) Over primed sandy surface, providing and spray applying two component hybri polyurea polyurethane coating system which shall be solvent free, mixed in proportion by volume / by weight as recommended by the manufacturer having elongation > 400%, Shore A hardness > 75 (after 28 days), tensile strength of minimum of 10 MPa as per DIN/ASTM and Tear strength of minimum 30N/mn as per DIN 53515 or minimum 45 N/mm as per ASTM D624 and 20 second maximum gel time/reaction time with minimum 1.5 mm dry film thickness of two coats. f) A layer of non woven polypropylene geotextile of minimum mass/ unit area of 120 gsm with an overlap of 50 mm shall be laid over the polyurea / polyurethane coating surface, having minimum tensile strength not less 2.40 KN/m as per ASTM D 4595. g)Providing and laying screed of cement concrete 1:1.5:3 (1 cement:1.5 Coarse sand:3 graded stone aggregate20mm nominal size )of minimum thickness 50 mm at khurra with slope of 1:100 towards khurra to ridge of roof(Screed shall be paid for separately). h)Provding and laying Dimple drain board with inbuilt geo textile drainage membrane on top having Dimple height of 20-25 mm , average number of dimple 400 per Sqm,compressive strength not less than 180 kN/m2 and geotextile drainage member having mass of 120 gsm laid with minimum overlap of 50mm. Note: If HDPE drain cells/ Drain mats along with a layer of geotextile having weight of 120 gsm and tensile strength not less than 2.4 kn/m as per ASTM D 4595 is provided in place of dimple drain board with inbuilt geotextile it shall not be paid as extra.

Providing and spray applying two component hybrid polyuria polurethane waterproofing system at all levels for podium garden waterprofing by the manufactuer or his approved applicator consisting of following operations: a)Dismantling and removing the existing APP layer including disposal of malba. b) Grinding the surface to remove clinged APP layer and dirt , dust, grease , etc. and treating the surface as recommened by manufacturer and therafter treated cracks , hold etc surface polymer modified cement mortar or is ponded with water for 24 hours for testing of leakage or seepage . c) Providing and applying by spray or brush,two component solvent free resin/ epoxy primer mixed in proportion by volume/weight as recommended by manufacturer over cement concrete surface after 14 days dry having consumption varies from 0.20 to 0.40 kg/sqm depending in the porosity and undulations of the surface. d)Providing and sprinkling sand, as recommended by manufacturer over freshly laid primed tacky surface @ 0.25 to 0.40 kg/sqm as directed by Engineer -in-charge. e) Over sandy surface, providing and spray applying two component hybrid polyurea polyurethane coating system solvent free, mixed in proportion by volume / by weight as recommended by the manufacturer having elongation > 400%, Shore A hardness > 75 (after 28 days), tensile strength of minimum of 10 MPa as per DIN/ASTM and Tear strength of minimum 30N/mn as per DIN 53515 or minimum 45 N/mm as per ASTM D624 and 20 second maximum gel time/reaction time. f) A layer of non woven polypropylene geotextile of minimum mass/ unit area of 120 gsm with an overlap of 50 mm shall be laid over the polyurea / polyurethane coating surface, having minimum tensile strength not less 2.40 KN/m as per ASTM D 4595. g)Providing and laying screed of cement concrete 1:1.5:3 (1 cement:1.5 Coarse sand:3 graded stone aggregate20mm nominal size )of minimum thickness 50 mm. h)Provding and laying Dimple drain board with inbuilt geo textile drainage membrane on top having Dimple height of 20-25 mm , with unit weight 120 gsm no dimple approximately 400 per Sqm,compressive strength not less than 180 kN/m2 laid with minimum overlap of 50mm. Note: If HDPE drain cells/ Drain mats along with a layer of geotextile having weight of 120 gsm and tensile strength not less than 2.4 kn/m as per ASTM D 4595 is provided in place of dimple drain board with inbuilt geotextile it shall not be paid as extra.

Deduct for not providing and laying Dimple drain board with inbuilt geo textile drainage membrane on top having Dimple height of 20-25 mm , average number of dimple 400 per Sqm,compressive strength not less than 180 kN/m2 and geotextile drainage member having mass of 120 gsm laid with minimum overlap of 50mm.

Proofing and spray applying two component hybrid polyuria polurethane waterproofing system at all levels for podium garden waterprofing by the manufactuer or his approved applicator consisting of following operations: a) Dismantling the existing cement plaster of brick masonary wall including disposal of malba. b) 15 mm cement plaster with cement mortar 1:3 (1 cement: 3 coarse sand) over a coat of cement slurry @ 2.0 kg/sqm. c) Providing and applying coving in concave shape of cement concrete 1:½:3(1 cement: 1:½ coarse sand:3 graded stone aggregate 20 mm nominal size) of size 75 mm x 75 mm at the junction of vertical wall and horizontal surface along the length of wall. d) Providing and applying by spray or brush,two component solvent free resin/ epoxy primer mixed in proportion by volume/weight as recommended by manufacturer over cement concrete surface in dry condition, having consumption varies from 0.20 to 0.40 kg/sqm depending in the porosity and undulations of the surface. e) Over primed sandy surface, providing and spray applying two component hybri polyurea polyurethane coating system which shall be solvent free, mixed in proportion by volume / by weight as recommended by the manufacturer having elongation > 400%, Shore A hardness > 75 (after 28 days), tensile strength of minimum of 10 MPa as per DIN/ASTM and Tear strength of minimum 30N/mn as per DIN 53515 or minimum 45 N/mm as per ASTM D624 and 20 second maximum gel time/reaction time with minimum 1.5 mm dry film thickness of two coats.

Providing and laying flanged C.I. standard specials such as tees, bends, collars, tapers, caps etc., suitable for flanged jointing as per IS : 1538 : Up to 300 mm dia

Providing and laying S&S centrifugally cast (spun) iron pipes (Class LA) conforming to IS - 1536 :300 mm dia pipe

Providing lead caulked joints to spun iron or C.I. pipes and specials, including testing of joints but excluding the cost of pig lead :300 mm diameter pipe

Removing any filler board or foam from expansion joint, grinding the top of joint for removal of laitance and cleaning of the expansion joint by air blower to remove any dust, dirt, loose particles as directed by Engineer-in-charge. (*Note: - Rate is all inclusive of transportation charges, labours /technician/ supervisor, tools, equipment and accessories etc. required for execution of work).

Providing and fixing of expansion joint system related with floor location as per drawings and direction of Engineer-In-Charge. The joints system will be of extruded aluminum base members, self aligning / self centering arrangement and support plates etc. as per ASTM B221-02. The system shall be such that it provides floor to floor /floor to wall expansion control system for various vertical localtion in load application areas that accommodates multi directional seismic movement without stress to it's components. System shall consist of metal profiles with a universal aluminum base member designed to accommodate various project conditions and finish floor treatments. The cover plate shall be designed of width and thickness required to satisfy projects movement and loading requirements and secured to base members by utilizing manufacturer’s pre-engineered self- centering arrangement that freely rotates / moves in all directions. The Self - centering arrangement shall exhibit circular sphere ends that lock and slide inside the corresponding aluminum extrusion cavity to allow freedom of movement and flexure in all directions including vertical displacement. Provision of Moisture Barrier Membrane in the Joint System to have watertight joint is mandatory requirement all as per the manufactures design and as approved by Engineer -in- Charge. (Material shall confirm to ASTM 6063).Floor Joint of 200 mm gap

Providing and fixing of expansion joint system of approved make and manufactures for various roof locations as per approved drawings and direction of Engineer-In-Charge. The joints shall be of extruded aluminum base members with, self aligning and self centering arragement support plates asper ASTM B221-02. The system shall be such that it provides watertight roof to roof/roof to corner joint cover expansion control system that is capable of accommodating multidirectional seismic movement without stress to its components. System shall consist of metal profile that incorporates a universal aluminum base member designed to accommodate various project conditions and roof treatments. The cover plate shall be designed of width and thickness required to satisfy movement and loading requirements and secured to base members by utilizing manufacturer’s pre-engineered self-centering arrangement that freely rotates / moves in all directions. The Self centering arrangement shall exhibit circular sphere ends that lock and slide inside the corresponding aluminum extrusion cavity to allow freedom of movement and flexure in all directions including vertical displacement. The Joint System shall resists damage or deterioration from the impact of falling ice, exposure to UV, airborne contaminants and occasional foot traffic from maintenance personnel. Provision of Moisture Barrier Membrane in the Joint System to have water tight joint is mandatory requirement. (Material shall confirm to ASTM 6063). Roof Joint of 200 mm gap

Metal Gutter Waterproofing with TPO Membrane. a) Surface preparation - Griding the surface, removing all protrusion, Cracks repair by Smart Care SBR Latex and filling of tierod holes with Non-shrink General purpose grout, b) TPO Membrane: Providing and Installing SmartCare reinforced TPO Membrane or its equivalent a Single PLY -FR a high performance, heat weldable, thermoplastic polyolefin (TPO) sheet, in thickness of 1.5 mm, designed for waterproofing and heat shielding roofs of new and existing buildings. The membrane shall have elongation at break >15% as per ASTM D 412, Tensile strength 1100 N/5cm as per EN 12311-2,Puncture resistance of 400 N as per DIN 16726-5.12, Resistance to fire - E-Class as per EN 13501-1, Resistance to impact - 10 mm as per EN 12691, Tear resistance - >300 N as per EN 12310-2 the membrane shall have a laps of min 50mm with double welded sim which shall be heat welded using automatic double sim portable welding equipment, the membrane shall be terminated at min height of 300mm above FFL in the vertical areas using termination bar and mechanical fasteners and hand held welding machine, PU Sealant complete as per manufacturer specifications and product data sheets. c) Termination of membrane with metal strip up to external side of Parapet wall / metal surface 50 - 75 mm Down with Hybrid Sealant. Note : 1. The Waterproofing Applicator shall provide Warranty for period of 10 years against water tightness against natural de- bonding of membrane and workmanship quality. Applicator will be liable only for rectifying any defect in the treated works and will not cover any other damages. 2. Entire builtup system will be of single waterproofing products manufacturer.

Grading roof for water proofing treatment with 1:1½:3 (1 cement : 1½ coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources) up to floor five level, excluding the cost of centering, shuttering and finishing.

SHIVKRUPA ENTERPRISES (BID ID -919951)

A. G. Advance Chemicals Pvt. Ltd. (BID ID -919054)

EASTERN TRADE AGENCY (BID ID -920216)