Maharashtra SOR 2022-23

Bridge repair rates

13 bridge repair items from the Maharashtra Public Works Department (PWD), effective 2022-07-25.

Bridge repair rates in the Maharashtra State Schedule of Rates 2022-23 run from ₹72.00 to ₹2,647.00. Transcribed from Maharashtra PWD — State Schedule of Rates 2022-23, effective 25 July 2022. Reference only — verify against the official source before pricing a bid.

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13 items — scroll the table to browse

	Description	Unit
52.29	For all concrete New / Repair of RCC / PSC Bridges using migrating, non-nitrite based corrosion inhibiting admixture as approved by Engineer in charge at a dose of 3 Kg per cum of concrete. The admixture should protect both cathodic and anodic sites and has been recommended for use by Ministry of Road Transport & Highways and should have a 8 year track record of use in both abroad and India. Admixture should have evaluated test reports demonstrating a corrosion rate of zero coulombs after 9 test cycles and less than 2000 coulombs as per ASTM G 109 when tested from a research institution NBA accredited Grade A and internationally ranked among top 5 research institutions in the world in Annual Survey conducted by Georgia Institute of Technology ranking of research institutions. PH of admixture should be alkaline in nature and is based on Polyalkalene polyamines with specific gravity of 0.99 - 1.1 brownish colour. The contractor must intimate the engineer in charge prior to addition in concrete for recording. If the admixture is put in the concrete mix at the batching plant, a written record of the amount of admixture used shall be supplied to the engineer. The engineer must ensure that the specified dosage of admixture is added in the concrete mix. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	210.00
52.30	For Strengthening of concrete RCC, PSC bridges including piers, girders, deck slabs etc. Execute the work as follows. Remove dust, laitance, grease, oil, curing compounds, waxes, foreign particles, coatings and disintegrated materials by mechanical means (i.e., blast cleaning). Empty entire pre-packed and pre-weighed contents of ‘B’ Component into pail containing ‘A’ Component. Mix for 30 seconds with a low speed stirrer. (400-600 rpm). After proper mixing of component ‘A’ and ‘B’, now empty entire pre-packed and pre-weighed part ‘C’ component into the mix and using a mechanical stirrer mix all the components for 1-3 minutes with a low speed stirrer (400 to 600 rpm). Caution: Mix only that limited quantity which can be placed within the pot life. Material should be quickly brushed/ poured from pail onto concrete surface to obtain prolonged working life. Inspect the underside for evidence of full depth cracks that may require additional treatment to prevent draining of the resin. Cracks greater than 1/8" width should be repaired individually. Fill 1/8" or larger cracks with loose sand and pour small quantity of mixed 2- (methoxycarbonyl)-1-Propene Resin Sealer Cum Grout as approved by Engineer in charge into the crack, allow to cure. The above Material is spread evenly on the surface as a flood coat with a squeegee or rollers on horizontal and vertical surfaces and allowed to absorb completely into the concrete substrate. Drill injecting holes to a depth of 2 - 4” in concrete depending upon the width of crack, extent of damage and dimension of structural element. Fix the grouting nozzle and inject the mixture of 2-(methoxycarbonyl)-1-Propene Resin Sealer Cum Grout at pressure of 50 - 100 psi. (Rate for fixing nozzle is not included in this item). Low Viscosity, Transparent, Three Component, 2-(methoxycarbonyl)-1- Propene Resin Sealer Cum Grout should have following minimum properties: 1. Viscosity: < 5 cps 2. Flexural Strength (ASTM D-790): 1 day - 17.2 MPa 3. Bond Strength (ASTM C-882): 2 days - 14.4 MPa (Dry Cure); 14 days - 15.8 MPa (Moist cure) 4. Volume Solids %: ~100 It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item) (Coatings and Grouting Items shall be separate)	KG	2,064.00
52.31	Cleaning the existing surface by mechanical means such as sand blasting so as to remove all the existing loose rust etc. Cleaning the existing concrete substrate to achieve maximum adhesion between the coating and substrate. Free the surface from loose material, grease and oil by water jet/mechanical means. Dry the surface completely. Providing and applying one coat of Two component, solvent free, substituted long chain nylon reticulant based coating/primer as approved by Engineer in charge. This should be followed by two coats of protective two component, acyclic polyisocyanate reticulant (APR) based, UV resistant coating as approved by Engineer in charge. Apply the coats by brush or spray at 4-6 hours interval between each coat. Manufacturer of the coating shall be Dakks ISO 9001:2015 accredited for manufacturing and design; & have a track record of supplying the anticarbonation coating internationally. Two Component, Air Drying, Acyclic, Polyisocyanate Reticulant (APR) based coating should have following properties: 1. Carbon dioxide diffusion equivalent air layer thickness (DIN EN 1062-6): > 200 m 2. Carbon dioxide diffusion resistance co-efficient (DIN EN 1062-6): > 1.0 X 10^5 3. Elongation of cured film shall be as per ASTM D 2370/98: > 17 % 4. Chloride Ion Diffusion (ASTM C 1556): > 8.61 X 10^-12 5. The top coat shall have a minimum 5 year track record of use in the weather conditions of the Mumbai region 6. Minimum DFT of the entire coating system: 250 micron 7. Solid content of the base coat material: > 95% 8. Solid content of the top coat material: > 37% 9. The shade of the top coat should be different from the shade of the base anti-carbonation coating. 10. The base anti- carbonation coating material shall have evaluated test reports demonstrating conformance to the following properties when tested from a research institution NBA accredited Grade A and internationally ranked among top 5 research institutions in the world in Annual Survey conducted by Georgia Institute of Technology ranking of research institutions. It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	Sqm	647.00
52.32	Cleaning the existing steel surface by mechanical means such as sand blasting so as to remove all the existing loose rust etc. Using cotton waste swab and apply Rusticide as approved by Engineer in charge rust converting, steel passivating, flash rust preventing sulphate and chloride free, non-alkaline, inorganic single component, and nano film forming surface passivator (conforms to IS 9077-1979 (reaffirmed 1997) App. B CI. 5.3.3 for procedure). After 24 hours remove the free / loose rust particles by simple dusting with brush. Providing and applying one coat of Two component, anti-corrosive, solvent free, substituted long chain nylon reticulant based coating/primer LCNR as approved by Engineer in charge. This should be followed by two coats of protective two component, acryclic polyisocyanate reticulant based, UV resistant anticorrosive coating of APR as approved by Engineer in charge. Apply the coats by brush or spray at 4-6 hours interval between each coat. Two Component, Air Drying, Acryclic Polyisocyanate Reticulant (APR) based Coating should have following properties: 1. Volume Solids: 40 ± 3% (Depending upon shade) 2. Adhesion (ASTM D 4541): > 500 psi (Concrete Failure) 3. Impact Resistance (ASTM G 14): 25 - 30 J 4. Conformance: IS 13213 5. Dry Film Thickness/Coat: 40-50 microns at recommended coverage It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	Sqm	661.00
52.33	Remove loose, disintegrated and porous concrete at cracks and joints. Repair the same with epoxy or polymer modified mortar. Drill injecting holes to a depth of 2-4 inches in the concrete depending upon width of cracks, extent of damage and dimension of structural elements. Fix the grouting nozzles. Clean all loose dust particles from the cracks and holes by blowing compressed air through all the nozzles in succession. Mix and place Polyurethane Based Leakage Sealing Grouting as approved by Engineer in charge. Mix one batch at a time using a bucket and drill connected to a stirrer. Polyurethane Based Leakage Sealing Grouting by using PU Foam Grout should have following minimum properties: 1. Viscosity @ 25°C: 1300 ± 400 cps 2. Specific Gravity: 1.16± 0.05 It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	2,647.00
52.34	It is ready to use inorganic, bio compatible, low viscosity, non hazardous, soil stabilizing two component colloidal silica base chemical grout. Providing and carrying out this grouting to stabilize the strata above the tunnel, foundations, cutting slope stabilization and sub structures by using ultimate fine Nano grout as approved by Engineer in charge. Drill injecting holes to required depth in loose soil strata. Fix the grouting pipes. Grout must be continuously stirred during addition of accelerator and fully mixed to transparent solution prior to grouting into the soil/strata. No white precipitates should remain in the grout mix. This is ultimate fine grouting can be completed by Nano grout. Solvent Free, Inorganic, Hydrophilic, Non-hazardous, Low Viscosity Chemical Grout for Stabilization and Consolidation of Sandy/Silty Soil should have following minimum properties: Grout: (Rate for fixing nozzle is not included in this item). 1) Specific Gravity: 1.2 ± 0.1 2) pH: 11.3 ± 0.1 3) Viscosity in B4 Ford cup at 28°C: 12-15 sec Accelerator: 1) Specific Gravity: 1.07 ± 0.01 2) pH: 7.0 ± 0.1 3) Viscosity in B4 Ford cup at 28°C: 10-12 sec Sungeogrout Mix: 1) Specific Gravity: 1.2 ± 0.1 2) Viscosity in B4 Ford cup at 28°C: 12-15 sec It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	650.00
52.35	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).	Sqm	2,219.00
52.36	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).	Sqm	1,479.00
52.37	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 year 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 manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	1,093.00
52.38	Rake out loose pointing mortar material atleast upto 50 mm in depth and clean with using a nylon brush or low-pressure compressed air. It may require more depth some times depending upon the loss of integrity of existing mortar. Care is to be taken that the adjacent good and sound matrix is not disturbed. Provide anti-rooting treatment to entire recessed pointed area. Clean the joint area properly and pointing shall be done with High Viscosity having special thicxotropic chemicals along with long chain nylon reticulent (LCNR) Epoxy Resin Mortar as approved by Engineer in charge. Mix 2 kg Resin + 1 kg Hardener + 9-12 kg Quartz Sand (Graded) thoroughly to homogeneity using a slow speed (300-500 rpm) flame proof or air driven drill fitted with a mixing attachment. Hand press this mortar in the joint and finish the surface and allow the mortar to set for minimum 24 hours. (If scaffolding is required, same shall be provided and will be paid under relevant item)	Rmt	72.00
52.39	Rake out loose pointing mortar material from the joints of the heritage stone masonry atleast upto 50 mm in depth and clean the same by using a nylon brush or low-pressure compressed air. It may sometimes require more depth depending upon the loss of integrity of existing mortar. Care is to be taken that the adjacent good and sound matrix is not disturbed. Provide anti-rooting treatment to entire recessed pointed area. Clean the joint area properly and pointing shall be filled with a special mix of lime base hydraulic mortar and water for masonry with highly sulphate resistant cement and silica aggregates as approved by Engineer in charge. This lime based mortar is based on special limes with thixotropic agents, aldehyde based polymer and selected sands having high abrasion resistance. Hand press this mortar in the joint and finish the surface and allow the mortar to set for minimum 24 hours. Mortar should have Compression Strength of Appr. 10 N/mm2. (If scaffolding is required, same shall be provided and will be paid under relevant item)	Rmt	522.00
52.40	Remove loose, disintegrated and porous concrete at cracks and joints. Repair the same with epoxy or polymer modified mortar. Drill injecting holes to a depth of 2 - 4 inches in the concrete depending upon width of cracks, extent of damage and dimension of structural elements. Fix the grouting nozzles. Clean all loose dust particles from the cracks and holes by blowing compressed air through all the nozzles in succession. Whenever required grouting nozzle can be introduced for subsequent cementitious lime grout which is based on special limes with thixotropic agents, aldehyde based polymer and selected sands having high abrasion resistance by using Lime based Hydraulic Injection Suspension as approved by Engineer in charge. Before injecting the grout, it is advisable to make sure the nozzles are free of dust. Care is to be taken that the air pressure is monitored and maintained so as not to damage the matrix. Mix cementitious lime based hydraulic ready to use - Hydraulic Injection Suspension with 35 - 45% water by its weight in clean container using a low speed air driven mixer / stirrer to form a mix of uniform and flowable consistency. Depending on temperature, the water demand may vary. Lime based Hydraulic Injection Suspension should have following properties: 1. Bulk Density: 1.8 ± 0.2 2. Compressive Strength (28 days): W/P (0.45) - Appx. 10 Mpa. It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	522.00
52.41	Remove roots of the plant from joints of the stone masonry manually. Make sure that no part of the root has remained inside the masonry. Pour thiazolinones based Microbial Wall Wash and Anti-rooting Solution as approved by Engineer in charge in the Stone Masonry joints depending upon width of roots, extent of damage and dimension of roots of plant. For wider roots, it is necessary to first drill the holes in the bark from all the sides which should subsequently totally filled with Microbial Wall Wash and Anti-rooting Solution so that the same percolate in the bark. On complete absorption of the liquid, refill and the process must be continued atleast 5 - 6 times, if necessary. Microbial Wall Wash and Antirooting Solution should have following properties: 1. pH (5 % Solution): 6 - 8 2. Specific Gravity @ RT: 1.05 ± 0.02 It shall be applied as per manufacturer’s specification. (If scaffolding is required, same shall be provided and will be paid under relevant item)	KG	834.00

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