M and R to Latur WSS... Providing, erecting and commissioning of PAC Dosing system with mechanical equipments and surface repairs by ACPR System. (Estimated Cost Rs.39,81,373.00)

Cleaning and preparing the surface of old RCC/old plaster by removing loose cover by sander /grinder for application of new treatment including all tools, machinery, tackels etc. complete with labours.

Removing loose rust from the reinforcement bars by wire brushing, light hammering etc. and applying sulphate and chloride free inorganic single component rust remover Rusticide as approved by Engineer in charge conforming to IS 9077. The rusted surface shall become blackish non rusted colour. After 24 hours of application of rust remover, loose particles shall be removed by brush. Apply one more coat of Rusticide. Apply bonding coat slurry of high performance acrylic polymer - Methyl 2-methylpropenoate copolymer with another innovate as approved by Engineer in charge on entire surface. Mix 1 Kg of acrylic polymer with 0.5 Kg of cement. Finish it with ready to use repair polymer modified mortar based on special cements, formaldehyde based polymer with thixotropy modifying agents as approved by Engineer in charge (The Polymer Modified Mortar (PMM) should attain min. compressive strength of 20 N/mm2 in 1 day and 30 N/mm2 in 7 days) by adding 13 - 16% water by weight of polymer modified mortar for treatment to the damaged RCC members. Add 1 Kg of Migrating Corrosion Inhibiting Admixture as approved by Engineer in charge per 25 Kg bag of polymer modified mortar. After mixing polymer modified mortar, it can be trowel applied or sprayed. When applying by hand, polymer modified mortar must be forced tightly into the substrate to ensure complete contact with the substrate. (If scaffolding is required, same shall be provided and will be paid under relevant item)(15-30 mm thickness at a time).

Providing and applying well mixed polymer cement slurry in ratio 1:2 over well soaked but surface dry concrete and steel rebar for adhesion of fresh cement and sand mortar as per specification as directed etc. complete. (item includes use of polymers like sikaapproved or similar materials of relevant specification and scaffolding for height 8 to 10 meter)

Providing and applying required coats of a water based Evercrete Deep Penetrating Sealer (DPS) on cement concrete surface like roads, beams, and columns, plastered walls, basements, roofs, potable water tanks etc to react with cement and to penetrate concrete structure thereby making it resistant to chemicals / chlorides water to make it dust proof and to act as a water resistant at the same time which Strengthens the treated surface and reduce the curing period etc complete. - Note -- for item Nos. 7 to 4 prior approval of Superintending Engineer will be necessary

Providing and fixing zinc alloy based galvanic disk type sacrificial anodes (50 mm dia, 18 mm thick) as approved by Engineer in charge to the reinforcement, that should have a 3 years track record of use in PWD projects, 4 year track record in corrosive region of abroad and pass 500 hours salt spray test as per ASTM B 117. The anode shall be connected to the reinforcement steel by connectors provided with the anode. Sacrificial Galvanic Anode should have following minimum properties: 1. Base: Zinc Alloy 2. Conformance: ASTM B 418 Type II 3. Zinc Mass: Min 40 g per anode 4. Geometry: Disc Type 5. Diameter: 50 mm 5. Height: 18 mm 6. Surface Area: 6751 sq mm It shall be applied as per manufacturers specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)

Providing and injecting epoxy grout including structuring of cracks in the body of slab girder, fixing inlet tube arrangement including cost of materials, machinery required for the work labour charges etc. (2kg of grout is considered per hole)

Removing loose rust from the reinforcement bars by wire brushing, light hammering etc. and applying sulphate and chloride free inorganic single component rust remover Rusticide as approved by Engineer in charge conforming to IS 9077. The rusted surface shall become blackish non rusted colour. After 24 hours of application of rust remover, loose particles shall be removed by brush. Apply one more coat of Rusticide. Apply bonding coat slurry of high performance acrylic polymer - Methyl 2-methylpropenoate copolymer with another enoate as approved by Engineer in charge on entire surface. Mix 1 Kg of acrylic polymer with 0.5 Kg of cement. Finish it with ready to use repair polymer modified mortar based on special cements, aldehyde based polymers with thixotropy modifying agents as approved by Engineer in charge (The Polymer Modified Mortar (PMM) should attain min. compressive strength of 20 N/mm2 in 1 day and 30 N/mm2 in 7 days) by adding 13 - 16% water by weight of polymer modified mortar for treatment to the damaged RCC members. Add 1 Kg of Migrating Corrosion Inhibiting Admixture as approved by Engineer in charge per 25 Kg bag of polymer modified mortar. After mixing polymer modified mortar, it can be trowel applied or sprayed. When applying by hand, polymer modified mortar must be forced tightly into the substrate to ensure complete contact with the substrate. (If scaffolding is required, same shall be provided and will be paid under relevant item)(Upto 15 mm thickness at a time).

Acid Alkali resistant Polyurethane coating - two cots as per manufacturer guideliens including logistics and loading unloading but excluding GST for 100% surface area

Providing, erecting testing and commissioning of Agitator for PAC tank mixer mixer. this including Agitator fabricated from SS 304 shaft dia 32 to. 40mm as per manufacturer recomendation, and paddles 5mm thick dynamically balanced at 138 rpm. Drive assembly consisting of electric motor -1.5 HP, worm gear reducer- 337, & flexible coupling. Base frame: fabricated from ISMC - 100 x 50 with two coats of epoxy enamel paint. Electrical panel outdoor type with canopy powder coated with starter & MCB ec. complete.

Providing, erecting testing and commissioning of 32 mm ball valve, MOC SS 304, both side threaded ends with SUS handle having plaster cover, gland nut, stem nut, Trust washer, stem seal and CF8 ball, complete. Ball valve to be fixed at place with required machined parts