SPL REPAIR OF PLASTER INTERNAL SURFACE PAINTING AND OTHER CONNECTED WORKS FOR RCC OVER HEAD STORAGE TANK (06 NOS) LOCATED IN INF BDE AREA AT NAMS

Dismantling / taking down old existing unserviceable cement plaster, loose / unsound weaken cement concrete of any description and in any position from existing external / internal surfaces of RCC OHT/sump/ wall / roof / beams / columns / RCC , average depth 25mm (at any staging) with power driven of pneumatic chisel and disposal of unservicable material debris and rubbish outside MD land at a place as specified by local bodies including cutting of all edges, making square shoulders of the cavities, roughening the smooth surfaces, scrapping out / removing corrosion all loose / scale / rust etc from the visible reinforcement by applying rust remover maxcure RR of Thermax Ltd or equivalent of Chemco system/Webac chemicals and cleaning the steel reinforcemnt properly and then applying single component cementitious corrosion inhibiting primer for steel reinforcement Mucis PROTEZIONE FERRO MONO of Thermax hermax Ltd or equivalent of Chemco system/Webac chemicals on visible reiforcement surfaces to form a contineous film not less than 1 mm thick all as specified and directed. Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. (iii) Capacity 1.00 Lakh Galloncomplete all as specified and directed.

Providing and filling epoxy putty into RCC crack after opening up RCC cracks in V– groove manner approximate 10 mm wide & 10mm deep using mechanical cutter, properly cleaning the same to remove loose dust dirt etc and filling the same using Nitocote VF –three component, solvent free, thixotropic, Epoxy resin based putty having 100% solid contents mixed density of 1.6 g/cc, compressive strength – 50 N/mm ², pot life of 40 minutes at 27 degree C, Drying time 8 hrs. recoatable time 24 hrs. And finishing in line and level with existing concrete surface etc. complete as per in charge GE. Make; - Thermax/ webac chemicals/ chemco system as approved by the GE Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates (iii) Capacity 1.00 Lakh Gallon . complete all as specified and directed.

Providing and applying 3 coats of water proofing acrylic reinforced pre packed polymer confirm to DIN 1048 by mixing of 1kg WP poymer and 1.25 kg of cement for first coat than laying second layer of fibre glass mesh colth when the first WP layer is still green.Overlap of jints of Fibre cloth should not be less than 10cm , then finally apply 3rd layer mix of WP polymer cement slurry by brush to entire surface of container .Cure it sfor 3 days including necessary steel scaffloding , steel platform and proper supporting by steel prog etc complete Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. complete all as specified and directed.

M&L for providing rendering 20 mm thick of cement mortar using BS 5F(Single component thixotropic fibre reinforced polymer modified repair mortar) of Thermax / Webac chemicals / Chemco systems to achieve Compressive strength of 15 N/mm2 in 1 Day ,25 N/mm2 in 3 Days ,adhesion bond strength of >2 N/mm2 , furnished the surface even and smooth all as specified and directed. Note : Note : (i) Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding with steel props and working upto height 25 mtr etc. complete as per specification and directed by GE . (ii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates (iii) Capacity 1.00 Lakh Gallon. complete all as specified and directed.

M&L for repair to cracks and damaged existing surfaces of RCC OHT / sump / column / beam etc(Approx height 4 to 23 M from ground level) by structural strengthening using epoxy injection grouting with MAXGROUT E10 of Thermax Ltd or equivalent of Chemco system /Webac as approved by the GE complete all as specified and as directed and as under :- (a). Fixing of GI nozzles in zig-zag fashion not more than 50 cm c/c on RCC surfaces on all directions as required after drilling holes in concrete, fixing GI nozzles with fast setting mortar and covering with renderoc plug. The size of holes shall be 12mm dia and 75mm in depth. (b). Epoxy injection grouting shall be carried out by using standard pressure grouting pump after mixing design and hardner to the extent till refuse to accept further grout complete. (c). Cutting and flushing of nozzles with surface after completing grouting and sealing the nozzles with cement mortar (1:1) and preparing the surface to match with the existing surfaces all as directed. Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates (iii) Capacity 1.00 Lakh Gallon. complete all as specified and directed.

TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips quality conforming Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. complete all as specified and directed.

Mild steel TMT bars 5 mm and over upto and including 10 mm dia in stirrups,spaces and binders cut to length bent to shape required including cranking bending spirally for hooping for columns hooking ends and binding with and including mild steel wire ( annealed) not less than 0.9 mm dia complete all as specified and directed. Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding with steel props and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. complete all as specified and directed.

Scrapping, hammering, chiseling, scrubbing to external surfaces of RCC overhead tank at any height using electric/mechanical means, hand brush, blower, etc. as recommended by the manufacturer including necessary scaffolding etc. and disposal of all unserviceable complete up to a distance out of defence land complete all as specified and directed. Note : (i) Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding with steel props and working upto height 25 mtr etc. complete as per specification and directed by GE . (ii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. (iii) Capacity 1.00 Lakh Gallons complete all as specified and directed.

M&L for providing and applying T-Guard ANTC of make Thermax or equivalent of webac chemicals /Chemco system as approved by the GE, having High Performance Water Based aliphatic protective coating (shade as approved by GE) to exposed concrete or masonry surface after proper surface preparation, cleaning of dust, dirt etc. System should be application of T-Guard of Thermax make or equivalent of webac chemicals /Chemco system -Water based acrylic polymer primer cum sealer coating coverage @ 8-10 Sqm/liter/coat on prepared surface and application of 2 coats of T-Guard AC of Thermax make or equivalent of webac chemicals /Chemco system at 260-280 microns DFT coverage @ 5 Sqm/liter/coat @ 200 microns WFT using suitable brush or roller. NOTE for item No.7 & 10 to 16:- (i) The treatment shall be carried by the authorized applicator of treatment provider company as approved by the GE at any staging. (ii) Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. complete all as specified and directed.

S&F of water level indicator in repair in existing OHT of height varing from 18m to 25m with copper float of 50mm dia 100 mm long hollow box of 16 Guage copper sheet fixed to steel wire rope of required length, including brass pullies with nylon bush and 50mm X 50mm X 6mm angle iron brackets for pullies,the indicator board shall be of 10 gauge MS plate 200mm wide fixed on angle iron frame 30mm x 30mm x 5mm with angle iron stiffners, front face of board shall be painted with 02 coats synthetic enamel paint over a coat of red oxide primer & mark levels with black synthetic enamel paint 02 coats (graduation) on rear side over a coat of red oxide primer, Fixing arrangement of level indicator board shall be carried out as directed by Engineer in charge. Note : Quoted rate shall be deemed to be inclusive of materials all labours, tools and plants, scaffolding with steel props and working upto height 25 mtr etc. complete as per specification and directed by GE . (iii) Adoption of necessary safety arrangements like safety belts ropes, helmets netting etc which are required for safety of worker working at height exceeding 3 mtr shall be mandatary and deemed to be inclusive in quoted rates. complete all as specified and directed.