Arresting the Leakages / seepages in the Main Plant Buildings and Underground Structures of Kaiga Generating Station 3 and 4

Amount

Providing and fixing of 10 mm. dia. Aluminium nozzles [NRV] with rapid/quick setting cementetious compound [like Sika Rapid-1/ Renroc plug/ Quick setting cement]. The job is inclusive of preparation of base, drilling holes, fixing the nozzle as per specifications & at spacing as per site requirements, finshing post grouting, The grouted nozzles shall be cut & removed post completion of curing of grout and the holes shall be packed & finshed with rapid/quick setting cementetious compound, cleaning the work area and disposing the waste & unwanted materials 2 to 3 Kms outside the periphery of the work premises etc. Complete all as per specifications and as directed by the Engineer-in-Charge at all heights and lifts / elevations. Note: The item is excluding erection & dismentling of scaffolding, it will be provided by department at free of cost based on site requirement.

Providing and grouting low viscous, elastic, solvent free & Non-shrink Polyurethane injection resin (Two Component Based) inside the underground tunnels/trenches, overhead water tanks & all other RCC structures of KGS 3&4 (wherever required) to fill up all inherent holes, honey comb & leakage/ seepage points etc. The job is inclusive of preparation of base, injection grouting of non-shrink polyurethane injection resin grout through packers/nozzles at a pressure of 2.00 to 4.00 Kg per sq. cm., cleaning the work area and disposing the waste and unwanted materials 2 to 3 Kms outside the periphery of the work premises etc. Complete all as per specification, as per manufacturers specification and as directed by the Engineer-in-Charge at all heights and lifts/elevations. Note: [1]The item is excluding erection & dismentling of scaffolding, it will be provided by department at free of cost based on site requirement.[2]Polyurethane injection resin (Two Component Based) shall be as per technical specification 2A of Annexure-I of Additional special condition of contract. [3] Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [4]Mixing and grouting shall be carried out as per manufacturer's technical specification or as decided by EIC.

Providing and grouting low viscous, elastic, solvent free & Non-shrink Polyurethane injection resin (Single Component Based) inside the underground tunnels/trenches, overhead water tanks & all other RCC structures of KGS 3&4 (wherever required) to fill up all inherent holes, honey comb & leakage/ seepage points etc. The job is inclusive of preparation of base, injection grouting of non-shrink polyurethane injection resin grout through packers/nozzles at a pressure of 2.00 to 4.00 Kg per sq. cm., cleaning the work area and disposing the waste and unwanted materials 2 to 3 Kms outside the periphery of the work premises etc. Complete all as per specification, as per manufacturers specification and as directed by the Engineer-in-Charge at all heights and lifts/elevations. Note: [1]The item is excluding erection & dismentling of scaffolding, it will be provided by department at free of cost based on site requirement. [2]Polyurethane injection resin (Single Component Based) shall be as per technical specification 3A of Annexure-I of Additional special condition of contract. [3]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [4]Mixing and grouting shall be carried out as per manufacturer's technical specification or as decided by EIC.

Providing and grouting solvent free, aggregate free, ultralow viscosity & free flowing two-component epoxy injection resin in construction joints, EP & concrete junctions, all inherent leaky points, holes & honey comb etc. of all RCC structures of KGS 3&4. The job is inclusive of preparation of base, grouting epoxy resin injected through installed packers/nozzles at a pressure of 2.00 to 4.00 kg. per Sq. cm., cleaning the work area & disposing the waste/unwanted materials outside the periphery of the work premises etc. complete all as per technical specification and as directed by the Engineer-in-Charge at all heights and lifts/elevations. Note: [1]The item is excluding erection & dismentling of scaffolding, it will be provided by department at free of cost based on site requirement.[2]Two-component epoxy injection resin shall be as per technical specification 4A of Annexure-I of Additional special condition of contract. [3]Each batch shall invariably carry test certificates as per table 1 of NPCIL Specification No.:PC-M-00028-R2 for tests conducted in NPCIL Approved laboratory at his own cost. [4]Mixing and grouting shall be carried out as per manufacturer's technical specification or as decided by EIC.

Grouting of two components epoxy injection resin in all main plant RCC structures other than Reactor Buildings of KGS 3&4.

Grouting of two components epoxy injection resin in Reactor Buildings- 3 & 4.

Providing and applying aromatic, seamless, high density, elastic Hybrid Polyurea based spray applied waterproofing membrane for Terrace water proofing with UV resistant Aliphatic coating to protect Hybrid Polyurea coating. The waterproofing Job includes: [1]Surface Preparation: Preparing the concrete surface to remove dust, dirt, laitances etc. using mechanical means and treating minor defects in concrete with polymer modified mortar using repair polymer (SBR). The surface shall be rendered clean prior to application of Hybrid Polyurea. The residual moisture of the surface shall be less than 4% (Shall be checked with moisture meter). [2]Angle Fillet/Coving: Making of angle fillets of size 50x50mm all around the periphery of the wall with polymer modified mortar using repair polymer (SBR). [3]Injection Grouting wherever required: Grouting the joints, honeycomb areas in the concrete through PVC injection nozzles fixed @ 1 meter c/c or less as per site conditions, using cement slurry grout mixed with expansive additive- added @ 250 gm per bag of cement to full saturation and removing the nozzles and plugging the holes with repair mortar/non shrink grout. [4]Waterproofing Coating: Application of High performance hybrid PU elastomeric waterproofing spray applied liquid membrane. The system includes final base preparation, epoxy primer application and applying Hybrid PU or approved equivalent in two coats to achieve a min. thickness of 1.6 mm DFT, complete all as per Manufacturer's specifications and as directed by Engineer-in-Charge at all heights and lifts/elevations. [5]Aliphatic PU Coating: Damp Proof coating for UV resistance over Polyurea hybrid coating. Note: [1]Hybrid PU elastomeric waterproofing spray applied liquid membrane shall be as per technical specification 5A of Annexure-I of Additional special condition of contract. [2]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [3]Application shall be carried out as per manufacturer's technical specification or as decided by EIC.

Supply of Polyurethane injection resin (Single Component Based). Note: [1]Polyurethane injection resin (Single Component Based) shall be as per technical specification 3A of Annexure-I of Additional special condition of contract. [2]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [3]Shelf life shall be 1 year and date of manufacturing shall be within 1 month fro the date of supply.

Supply of solvent free, aggregate free, ultralow viscosity, free flowing, two-component epoxy injection resin. NOTE: [1]Two-component epoxy injection resin shall be as per technical specification 4A of Annexure-I of Additional special condition of contract. [2] Contractor shall produce test certificate on demand for test conducted as per table 1 of PC-M-00028-R2.

Supply of Integral waterproofing Compound conforming to IS 2645 (latest) for cement grouting, concrete repairs & plaster mortar. Note:[1]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [2] Shelf life shall be 24 months and date of manufacturing shall be within 1 month from the date of supply.

Supply of Rapid setting cement based, water leak plugging mortar for rapid temporary patching, plugging of concrete segment, concrete & brick tunnel linings, sewage systems, below ground access chambers, pipes etc. It shall be suitable for application over horizontal, vertical or overhead surfaces at wide range of thickness. Properties are Initial setting time of approx 1-2 min. at 30°C, Compressive strength of 25 N/mm2 @ 28 days @ 30°C. Note: [1]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [2]The material has to be supplied in the pack of size 1Kg Standup pouch or 5Kg HDPE bag or as decided by EIC. [3]Shelf life shall be minimum 6 months and date of manufacturing shall be within 1 month from the date of supply.

Supply of Highly Expansive Single component Polyurathane (PU) Fixing Foam. Product should have density of ~20kg/m3, water absorption <1% volume (Cut surface), Compressive strength of ~0.05 N/mm2 (With 10% deformation), tensile strength of ~0.1 N/mm2, Elongation at break ~28%, shear strength of ~0.04 N/mm2, Dimentional stability +/- ~5%, joint permiability of water vapour µ=21, sd=1.0m (d=49mm, ρ=19.5 kg/m3), thermal conductivity ~0.04 W/mK, Sound insulation Rst,w(C;Ctr)= 61(-1; -4)dB & Service tempreture ~40°C (min.) / +80°C (max.). Note: [1]Manufacturer test certificate for each batch shall be submitted to Engineer In Charge on demand. [2]The material has to be supplied in 250ml can with rubber valve. [3]Shelf life shall be minimum 12 months and date of manufacturing shall be within 1 month from the date of supply.

Supply of Epoxy / PU Injection grouting pump including all related accessories like SS hopper, pressure guage, Suitable hose with connnectors & Valves, Tool kit etc. Specifications: (1)Pump Type: Grouting Injection, (2)Power source: Electric, (3)Voltage: 220V, (4)Motor: 750W, (5)Operating Pressure: around 610Kgf/cm2, (6)Material: stainless steel & (7)Hose length: approx 10mtrs.

Supply of Aluminium NRV type injection nozzles or packers with Breakable groove, expandable rubber washer suitable to Injection grouting pump as mentioned in item no.-10. The packers shall be having Dia: 10/12/13mm and Length: 80/100/115/150/200mm.