SPECIAL REPAIRS TO HANGER AT AF STATION OJHAR

Amount

Dismantling corrugated /semi corrugated galvalume/polycarbonate sheets etc in roof covering including ridge and taking care of earthing strips and refixing complete all as specified and as directed.

Supply & fix in pre-painted galvalume ALUMINIUM ZINC COATING GI based corrugated steel sheet having tensile strength of 550 Mpa as in roof covering/wall cladding, trapezoidal colourbond ultra steel profile sheet of effective width 1015 mm and nominal 28.5 mm deep ribs with subtle square fluting in the five pans at nominal 203 mm centre to centre. The end rib shall be designed for anti capillary action, to avoid any seepage of water through the lateral overlap. The feed material used as per AS/NZS 2728 Type 4 with nominal 0.65 mm Total Coated Thickness (0.60 mm Base material) of high stregth with minimum 550 Mpa yeild stregth AZ 200 (Min 200g/m2 total of both sides) hot dip metallic coating of 55% aluminium zinc to AS 1397 (Zincalume steel) and lead free super durable paint top coat with inorganic pigment with thermotech technology. The sheet shall have total coating thickness of 40 micron, super durable polyster quality paint system of 20 micron on exposed surface and 10 micron reverse polyster coat on back surface over 5 micron primer coat on both surfaces. The paint system should have stable resin & inorganic pigment for paint durability and lead free for water harvesting. The steel sheet shall have brand marking of coated steel manufacturer (product details, date, mfg name, etc) on back side at rgular interval confirming genuineness of the material including 05 Nos self tapping screw using hammer drilling or any power driven equipment at site for drilling the existing steel structure with each profile sheet complete all as specified and as directed.

Make : - Tata Blue Scope Steel (LYSAGHT TRIMDEK) colour bond ultra or eqivalent in JSW or ESSAR Note :- The quoted rate shall includetaking down the lightening arrestors strips and wind turbines (Turbo ventilator) carefully and refixing the same after completion of item No. 2, there shall be no extra payment on this account, rate shall be deemed in quoted item above. If any strip of turbo ventilator is damaged by the contractor while taking down the same shall be provided by the contractor without any cost to Government.

Supply and fix pre-painted galvalume aluminium zonc cozting GI based plain steel sheet 0.50 mm thick of any colour having tensile strength of 550 Mpa as in roof fixed with & including @ maximum 300 mm centre -to-centre self tapping screw with each plain sheet as in cladding on vertical surfaces, including providing on both ends of slopping side roof made in shapes as required, complete all as specified and directed.

All as per itme No. 02 above as herein before but as in north light curves of girth not less than 750 mm.

Supply and fix 2 mm thick poly carbonate sheet fixed both sides top and bottom aluminium standard sections with rubber gasket to match with the profile of ser item No. 02 above roof sheet and EPDM rubber gasketfixed with self tapping screw in roof/wall up to any height, both sides UV protected etc complete all as specified and directed. MAKE : - Duratuff / lexon /Tuflite

Supply and fix rolled sections conforming to Fe-410 W of B quality as in framing for cladding, glazing and the like fixed with angle cleats and connecting plates, made in shape or curves as required for fixing of North light curves, etc. complete all as specified and directed.

Supply and fix in repairs minimum 3.15 mm thick plain, mild steel sheeting as in ridges, hip, valley gutters, drip, funnels etc made in shape / design including making the hole in the funnel and projecting arrangement outlet below funnel as a back to insert in outlet below to down water pipes and straight flashing (length and girth as fixed) complete all as specified and directed including all welding etc. Note : (i) dismantling the valley gutters through mechanical cutter on existing place for taking down and follow as safety and fire rules all as directed by Engineer-In - Charge. The length of gutter in each bay is approximately 50 RM and for providing in gutter in parts, the gutter shall be overlap 100 mm dully welded and concealed with sealant compound to make it water tight.

Supply & fix mild steel screw bolts (machine made) with hexagonal or square head at one end and the screwed the other to be fitted with washers and one hexagonal or square length not exceedind 90 cm and dia not exceedind 16 cm with threaded portion of bolt as required upto 150 mm and to fixed below gutter as required to make proper slope of gutter complete all as specified and as directed

Supply and fix hand rails, half round or other stock section or core for wooden hand-rail straight portion, drilled and countersunk for balusters running bars, for doors, balusters, nosing to steps including embeding in concrete and screwing etc. wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar work conforming to Fe-290 Gde E-165 all as specified and directed.

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as specified and directed

Hacking out old broken glass of any thickness, size, quality or any description from metal frames including punching or drilling out old glazing pins/spring clips and providing & fixing new ones, complete all as specified and directed.

Supply and fix Rough cast wired glass, 6.4mm thick of size exceeding 1.00 sqm but not exceeding 1.50 sqm and glazing fixed with MS 'U' clip and nut and bolt, make leakage proof with bitumen based gasket around the glass at joint of MS frame and fixed with oil putty inexternal exposed site complete all as specified and directed.

All as per itme No. 12 above as herein before but except glass.

Material and labour for preparation of new steel surfaces of any description, over 10cm width or girth, not otherwise described and applying two coats of aluminium paint over a coat of aluminium oxide primer all as specified. Note :- Contractor shall made the arrangement for height 16 mtr for working and no extra cost shall be provided for that.

Material and labour for preparation of new steel surfaces of any description, not exceeding 10cm width or girth, not otherwise described and applying two coats of aluminium paint over a coat of aluminium oxide primer all as specified. Note :- Contractor shall made the arrangement for height 16 mtr for working and no extra cost shall be provided for that.

Material and labour for preparation of old steel surfaces of any description, over 10cm width or girth, not otherwise described including all necessary preparatory work required and applying two coats of aluminium paint over a coat of aluminium oxide primer all as specified. Note :- Contractor shall made the arrangement for height 16 mtr for working and no extra cost shall be provided for that.

Material and labour for preparation of old painted steel surface of any description over 10 cm in width or girth not other wise described and applying one coat of synthetic enamel paint all as specified. Note :- Contractor shall made the arrangement for height 16 mtr for working and no extra cost shall be provided for that.

Dismantling of 200mm dia PVC rain water pipes, jointed in cement mortar complete all as specified and directed.

Supply and fix 200mm dia cast iron spun rain water socketed pipes horizontal or vertical fixed to existing purlins with clamps made in shape including all nuts bolts of standard section in cement joints as per IS 3989, with earts complete all as specified and directed. Note : Clamp shall be measured and paid seperately.

Supply and fix for cast iron shoe bend of 200 mm dia complete all as directed.

Material & labour for PCC 1:2:4, type B1 using 20mm graded stone aggregate as in coping /hunching splash stone laid in shapes as desired all as directed by Engineer-In-Charge.

Supply and fix bands, straps, supports or stays for eves, valley gutter, rainwater, ventilating pipes, including bolts, if required hooks (stay), wall ties, hooks for hanging fans, plain angel cleats for securing purlin to wood trusses or rafters, knee piece inserts, two way and three way straps, plate washers and similar small articles conforming to Fe-290 Gde-E-165 complete all as specified and directed.

Taking down of existing anti bird net of any description with all aaccessories complete all as directed. The taking down of bird net shall be carefully without damaging by the contractor for refixing under item No. 25 herein after. If any damage occurred due to negligence by the contractor, that shall be provided by the contractor without any extra cost to Government.

Supply and fix as in repairs anti bird net square mesh of size 20 mm x 20mm black/white or any colour HDPE knotted net, thickeness of the net 1.00 mm, weatherproof, UV stabilized and chemically inert, breaking strength of 23.08 kg per yarn, having a melting point of 260 centigrade fixed with boarder rope of dia 4.00 mm, UV stabilized boarder rope joint with the net by machine inter locking process using three twinces of the same as that of net tied to 12 mm dia hooks (made to shape) or welded to steel structure and 12 mm dia anchor fastner bolt fixed to RCC structure as applicable at suitable intervals complete. The work shall be executed upto 16 mtr height, all as directed. Note : Taking down the existing hanger lights carefully and refixing the same after completion of item No. 23 above. There shall be no extra payment on this account, the rate shall be demmed in quoted item above.

All as per itme No. 24 above as herein before but except anti bird net . Note : (i) Contractor shall made own arrangment for climbing and working on hangers. (ii) All safety measures are fallowed by the contractor as per safety guidelines. (iii) Work shall be executed bay wise. The next bay shall be handed over after completion of previous bay. (iv) All the work for above shall be executed in Hanger of approximately 16 mtr height. (v) The contractor shall make all arrangments for all safety /fire norms for the labour as well as Hanger equipment/ accessories in the hanger. (vi) Contractor shall make all arrangements to reach at work site of 16 mtr for supervision by supervisory staff. (vii) The site shall be handed over bay wise, next bay shall be handed over after completion of work in previous bay.

Note : The amount against Schedule of Credit on Page No. 28 shall be deducted from the total amount quoted against Sch 'A' while deriving lum Sum for Acceptance.

M/s M R MAHANA

Chandan Constructions