SPECIAL REPAIR TO EXTERNAL SURFACE OF BLDG NO P-107, P-108, P-109 AND ASSOCIATED WOKS AT AF STN KURSEONG UNDER GE (AF) BAGDOGRA.

M &L Chipping off existing loose, damaged Concrete from RCC members of all affected RCC Columns, Beams, Slabs and Chajjas on External and internal facades, etc beyond main r/f. (if required in the opinion of the Consultant), carefully with chisel and hammer Providingand applying ‘Rusticide SS’ Rust passivator or equivalent as specified in the Brand Names to existing r/f. bars Including wire brushing of reinforcement, cleaning washing of concrete etc complete as directed. Providing and applying two coats of rust preventor slurry made out of “Polyalk Fixoprime” or equivalent as specified in the Brand Names and cement in proportion 1:1.5 to existing r/f.bars as directed complete. Providing and applying bonding coat of slurry made out of “Polyalk EP” or equivalent as specified in the Brand Names and cement in proportion 1:1 to concrete and r/f substrates complete as directed Providing and applying “Polyalk EP” or equivalent as specified in the Brand Names. Polymer modified cement mortar in Required proportions(1:5:15) to RCC members Including Hand packing, curing and making the surface rough for plastering complete all as specified and directed.

M &L Moistening the Cracks, Providing and applying priming/bonding coat of slurry made out XX of “Polyalk EP” and cement (or equivalent as specified in the List of Brand names) in proportion 1:1 to surfaces prepared as instructed and directed. Filling the Cracks /Grooves by Providing and applying “Polyalk EP” Polymer modified cement mortar (or equivalents specified in the List of Brand names) in Proportion of 1: 5: 15 (Polyalk EP: Cement: Graded sand/quartz sand) on the prepared surfaces and finishing it in level with the existing plaster Including Hand packing, curing and making the surface similar to the external plastering using wooden floats/punch etc. complete all as specified and directed.

M & L Drilling holes of required size upto 16 mm Diameter and up to 50mm depth in concrete and cleaning the same complete all as specified and directed.

M & L Providing and fixing 12 mm diameter aluminium /PVC injection nipples and securing the same as directed & Providing and injecting cementitious grout using CEBEX-112 additive of ‘Fosroc’ at the rate of 225 grams per bag of cement and using suitable mechanical gun/pump including mixing etc complete all as specified and directed.

Dismantling Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings complete all as specified and directed.

M&L pre-painted galvalume aluminium zinc coating GI based corrugated or semi corrugated steel sheet 0.50 mm thick (BMT) of any colour having tensile strength of 550 Mps as in roof covering/cladding to wall fixed with self tapping screws complete all as specified and directed.

M&L pre-painted galvalume aluminium zinc coating GI based plain steel sheet 0.50 mm thick (BMT) of any colour having tensile strength of 550 Mps as in roof ridge, covering/cladding to wall fixed with self tapping screws or "J" hook complete all as specified and directed.

Dismantling wrought iron or steel work of any description and any places complete all as specified and directed.

M&L for MS Steel work in tubular trusses including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS 1161- 1979 grade St.-240 complete all as specified and directed.

M & L for Bands, straps, supports or stays for rainwater, ventilating pipes, including bolts, if required: hooks (stay), heavy, for large gates; hook and pintle hinges: large hasps and staples; chains; hand made sliding bolts; clamps; hold fasts; wall ties; hooks for hanging fans; plain angle cleats for securing purlins 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.