Spl repair /structural rehabilitation of Bldg No P-2/97 and P-2/98 at Satwari Officer Enclave at Mil Stn Jammu under GE Satwari.

Providing temporary propping, shoring and support arrangement to distressed RCC slabs, beams, chajjas, staircases, walls and other structural members using adjustable steel props, channels, timber supports, bracing and staging including erection, maintenance during repair work and safe removal after completion complete all as specified and directed. . (Note:- For 2 Storey building and area n exc 50 Sqm )

Site safety system including GI pipe scaffolding with guard rails and toe boards, staging, barricading with red/white tape or metal barricades, access platforms, warning signage (in English/Hindi), debris handling and disposal at approved dumping ground and supply of all tools & plants required for safe execution of repair works as per IS 3696 (Part 1 & 2) complete all as specified and directed. (Note:- For 2 Storey building and area n exc 50 Sqm)

Removal of loose/unsound RCC cover concrete from beams, slabs, lintels, chajjas, and columns by controlled chipping/hacking with mechanical tools (pneumatic chippers/hammers) and diamond saw cutting up to sound concrete and minimum 10 mm beyond corroded reinforcement. Removal depth range 20–100 mm as per site condition. Including complete disposal of debris at approved dumping ground complete all as specified and directed.

Removal and disposal of all construction debris from defence land including collection of debris generated from concrete chipping, crack repair, concrete removal, jacketing, plaster demolition, foundation excavation and all other repair activities. Loading into tipper/trucks, transporting to municipal approved dumping ground outside defence land (minimum 10 km away) including payment of all tipping fees, royalty, and environmental charges as applicable Contractor to ensure no debris remains within defence premises at any stagecomplete all as specified and directed. Note:-Contractor to ensure no debris remains within defence premises at any stage

Cleaning of exposed reinforcement bars by wire brushing (power or manual), rotary wire cup attachment, grit blasting (with fine silica sand), or water jetting (pressure min 150 bar) to remove rust, mill scale, oil, grease, and other contaminants until bare bright metal surface is achieved.complete all as specified and directed.

Supply and application of rust remover and passivation system in two coats over cleaned reinforcement including surface preparation, application by brush/spray, and curing as per manufacturer's specifications. System shall convert residual rust into stable iron phosphate and provide temporary passivation. Brand: Sika Top Armatec 110 Epo Cem or equivalent as approved.complete all as specified and directed.

Providing and applying epoxy/polymer anti-corrosive coating (min 75 micron DFT) over reinforcement steel including two-component mixing, uniform coating by brush and curing as per manufacturer's instructions. Coating shall provide long-term corrosion protection even after recasting. Brand: Sikatop Armatec 108, BASF Master Emaco P130 or equivalent as approved.complete all as specified and directed.

Providing and fixing additional reinforcement bars including cutting, bending, lapping (min 50d), welding (for splices as per IS 2751), anchoring with chemical anchors and tying with GI binding wire (16 SWG) complete all as specified and directed.

Providing chemical anchoring system (Hilti HIT-RE 500 V3, Fischer FIS EM Plus, or equivalent as approved) including drilling holes of specified diameter (as per anchor size), cleaning with brush and compressed air, resin injection using static mixer, inserting threaded rod or deformed bar and curing as per manufacturer. complete all as specified and directed.

Providing and fixing shear connectors/dowels for RCC jacketing of garage-side columns including drilling into existing concrete (depth min 10d), cleaning, chemical anchoring using approved system and fixing deformed bars of 12 mm or 16 mm diameter as per design. Connectors to act as shear transfer between old and new concrete.complete all as specified and directed.