| 1 | Removal of damaged concrete along with loose damaged and cracked concrete/cover concrete at all specified locations up to beyond the corroded steel reinforcements as per coplte satisfaction of Engr in Charge by chipping/hacking with chisel and hammer or by mechanical means like chisel hammer, pneumatic chippers including high pressure water jetting to chipped concrete and reinforcement and removal and disposal of debris within owners premises including all plant and machineries. Note : Rates quoted for all items should include working upto 14m height including all necessary scaffolding , staging etc complete all as specified and as directed. HSE Guidelines : Recommended to wear tightfitting,dust-resistant goggles and mask during breaking and surface grinding works etc. | 120.00 | SQM |
| 2 | M & L for Polymer modified Mortar-Patch repair (in 3 layaers) (Up to Grade M45) Providing and laying Renderoc SP 40- shrinkage controlled polymer modified single component, alkaline resistant fibre reinforced, thixotropic, cementitious patch repair mortar supplied in 25 kg moisture resistant bag when mixed with clean water at w:p ratio 0.18, achieves compressive strength (BS 1881 Pt.116) -> 20 Mpa at 1 day & > 45 Mpa at 28 days, Tensile Strength(BS 6319 Pt.7) > 2.5 Mpa at 28 Days, Flexural Strength(BS 6319 Pt.3)>7 Mpa at 28 days, Drying shrinkage to ASTM C 157-93, 28 days < 1000 microstrain. Typical application inclues mixing entire bag with clean water about 4.25L to 4.5 L, mixed in suitable container with heavy duty slow speed mixer machine to achieve uniform lump free mortar consistency, placing and finishing the same with trowel carefully compacting the same around the rebars and finishing to bring it in line with existing concrete surface on the beams, slabs, piles etc., where the thickness of application is less than 50 mm in patches as per specification after applying bonding coat. Item rate is inclusive of materials all labour, tools and tackles, scaffolding and transportation etc. complete as per specification and as directed by Engg.-in-charge. Note : Rates quoted for all items should include working upto 14m height including all necessary scaffolding , staging etc complete all as specified and as directed. HSE Guidelines : Recommended to wear tight-fitting, dust-resistant, chemical splash goggles and mask if airborne dust is generated, wear protective gloves, Wear appropriate clothing to prevent any possibility of skin contact. | 50.00 | SQM |
| 3 | M&L Drilling of hole of suitable dia and length - as instructed by Engg In charge, in all structural memebers RCC, and other members, in any position, orientation etc. for enabling of insertion of incl but ot limited to Shear Connectors, extra bars, main bars, MS /TS Dowel Pins etc. complete al as specified and directed by Engg In Charge. Note : Rates quoted for all items should include working upto 14m height including all necessary scaffolding , staging etc complete all as specified and as directed. HSE Guidelines : Recommended to wear tight-fitting, dust-resistant, chemical splash goggles if airborne dust is generated, Wear protective gloves, wear appropriate clothing to prevent any possibility of skin contact. | 50.00 | EACH |
| 4 | M & L for Cleaning as directed & specified all rust/ scales/corrosion from reinforcement bars using rust remover Reebaklens RR- Rust remover, cleaning and etching agent supplied in 1/2, 1 and 5 Litre containers, having Specific Gravity 1.16 - 1.22 @ 25 C. Reebaklens RR cleaning agent is a combination of acid based material, corrosion inhibitors and dispersing agents and is supplied as a clear green solution. Application of Reebaklens RR with brush for complete wetting of rusted metal surface and allowed to react it for 16-24 hours followed by cleaning the surface with wire brush and washing surface with fresh water as required to exposed reinforcement bars complete as specified.Note : Rates quoted for all items should include working upto 12m height including all necessary scaffolding , staging etc complete all as specified and as directed. HSE Guidelines : Recommended to wear tight-fitting, dust-resistant, chemical splash goggles if airborne dust is generated, Wear protective gloves. Wear appropriate clothing to prevent any possibility of skin contact. | 15.00 | SQM |
| 5 | M&L M & L for Providing & applying inhibition coats/system to exposed reinforcement bars after drying & also new bars after cleaning & removing scales and rust completely as specified. Nitozinc Primer- Two component epoxy zincrich primer supplied in 1 and 5 Litre pack, two component system based on metallic zinc and epoxy resin which on mixing gives a grey coloured liquid. An Anti corrosive coat contents Active 'Zinc-rich' system which combats corrosion by electro chemical means. having specific gravity of 1.75, Adhesive bond strength > 1.5 N/mm2 Solid content- 60 %, 40 microns DFT, Fully dry/Recoatable- 45 minutes to 1 hour.Typical application includes surface preparations by cleaning steel surface to a bright condition paying particular attention to the back of exposed steel bars, mixed two components slow speed heavy duty drill fitted with a paddle, applying unbroken coat with suitable brush and allow to dry, after 30 mins apply second coat to ensure complete cover to exposed steel/ rebar etc complete. Total Dry film thickness is 40 microns. HSE Guidelines : Nitozinc Primer and Nitofl or Sol should not come in contact with the skin and eyes, or be swallowed. Adequate ventilation should be ensured and inhalation of vapours should be avoided. suitable protective clothing, gloves and eye protection shall be worn. If working in confined areas, suitable respiratory protective equipment must be used. The use of barrier creams, provide additional skin protection. Incase of contact with skin, it shall be rinsed with plenty of water, then cleansed with soap and water. Note : Rates quoted for all items should include working upto 14m height including all necessary scaffolding , staging etc complete all as specified and as directed. | 15.00 | SQM |
