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E-TENDERFORName of Work - Designing, Providing, Constructing and Commissioningmodernized and fully automated package/modular Sewage Treatment Plantsbased on MBR technology for capacities of 1.5 MLD & 5 MLD along Dahisarriver on Design Build Operate (DBO), along with 15 years of Operation andMaintenance and Providing and Laying of sewer network, provision ofInterceptors for diversion of DWF, construction of service road and road sidedrains on either banks of Dahisar River for interception & diversion works ofsewage.Name of Project - Rejuvenation and Beautification of Dahisar RiverProject Consultant : Tandon Urban Solutions Pvt. Ltd.Volume – 2(Employers Requirements & TechnicalSpecifications for Civil Works)Website-portal.mcgm.gov.in/tendersOffice of dy.Chief Engineer (S.O.) W.S.Versova Pumping Station, Admin Building,Junction of J.P. & Link Road,Adjacent to D.N. Nagar Metro Station,Andheri West,Mumbai – 400 052.

GENERAL CIVILSPECIFICATION2

ContentsGENERAL CIVIL SPECIFICATION . 141List of Important Indian Standards . 141.12Temporary Fencing and Hoarding . 251.1.1Removal of Debris . 251.1.2Tests . 26EARTHWORK AND EXCAVATION . 262.1General . 262.2Clearing . 272.3Cofferdams . 272.3.1General Description . 272.3.2Submittal Drawings . 272.3.3Materials . 272.3.4Construction . 272.3.5Removing Cofferdams . 282.4Excavation . 282.4.1Classification of Earthwork . 292.4.2Excavation Side Slopes . 302.4.3Undercutting of Adjacent Works . 302.4.4Stripping Loose Rock: . 302.4.5Excess excavation to be made good. 302.4.6Lead. 302.4.7Trench Excavation . 312.4.8Sheeting Shoring and Bracing . 312.4.9Trenchless Excavation . 342.5Backfilling and Filling . 362.5.1Materials . 362.5.2Execution . 372.5.3Site Filling. 382.5.4Backfill around Structures . 382.5.5Filling Beneath Plinths and Floors . 392.5.6Trench Backfilling . 402.5.7Site Grading . 413

2.5.8Clean Up . 412.5.9Disposal of Excavated Material . 412.62.6.1General . 422.6.2Components of Dewatering Systems . 422.6.3Maintenance of Existing Water Table . 432.6.4Protection of Existing facilities . 432.6.5Drainage . 432.6.6Removal . 442.73Excavation Dewatering . 42Ground improvement by vertical drains. 442.7.1General . 442.7.2Qualifications of Specialist Contractors . 442.7.3Working Platform . 452.7.4Vertical Drains . 452.7.5Earthwork materials . 492.7.6Instrumentation of Ground Improvement Area . 492.7.7Site Records and Reports . 54PLAIN AND REINFORCED CEMENT CONCRETE WORKS . 563.1General . 563.2Materials . 563.3Samples and Tests . 603.4Storing of Materials . 603.5Concrete . 603.5.1General . 603.5.2Design Mix Concrete . 613.5.3Batching and Mixing of Concrete . 653.5.4Nominal Mix Concrete . 653.6Formwork . 663.7Reinforcement Workmanship . 683.8Tolerances . 683.8.13.9Tolerances for R.C. Buildings . 683Preparation Prior to Concrete Placement . 713.10 Transporting, Placing and Compacting Concrete . 714

3.11 Mass Concrete Works . 723.12 Curing . 723.13 Construction Joints and Keys . 733.14 Foundation Bedding . 743.15 Finishes. 743.15.1General . 743.15.2Surface Finish Type F1 (IS 457) . 743.15.3Surface Finish Type F2 (IS 457) . 743.15.4Surface Finish Type F3 (IS 457) . 743.15.5Unformed Surfaces (IS 457) . 753.15.6Integral Cement Finish on Concrete Floor. 753.16 Repair and Replacement of Unsatisfactory Concrete . 753.17 Vacuum Dewatering of Slabs . 763.18 Hot Weather Requirements . 763.19 Liquid Retaining Structures . 763.20 Testing Concrete Structures for Leakage . 773.21 Optional Tests . 773.22 Grouting . 783.22.1Standard Grout . 783.22.2Non-Shrink Grout . 783.22.3Inspection . 783.22.4Clean-Up . 793.22.5Acceptance Criteria . 793.22.6Water stops. 803.22.7Workmanship . 813.23 Preformed Fillers and Joint Sealing Compound . 8143.23.1Materials . 813.23.2Workmanship . 833.23.3Concreting Records . 843.23.4Renovation Work . 84STRUCTURAL STEEL WORKS. 854.1Steel Materials . 854.2Fabrication . 855

4.2.1General . 854.2.2Connections. 854.2.3Straightening . 864.2.4Welding . 864.3Tolerances . 874.4End Milling . 874.5Inspection . 874.5.1General . 874.5.2Material Testing . 884.5.3Tests on Welds . 884.6Drilling Holes for other works . 894.7Marking of Members . 894.7.1Errors. 894.8Site Operations . 894.9Acceptance of Steel, its Handling and Storage . 904.10 Anchor Bolts and Foundations . 904.11 Assembly and connections . 914.12 Erection . 914.13 Inspection . 924.14 Tolerances . 924.14.1Surface Treatment . 924.14.2Materials . 934.15 Galvanising of Structural Steel . 9454.15.1Galvanising Plant . 944.15.2Workmanship . 94PLANT ROADS AND DRAINS . 965.1Road Construction . 965.2Materials . 965.2.1General . 965.2.2Soling Stone . 965.2.3Stone Aggregate/Metal . 965.2.4Screenings for Water Bound Macadam . 985.2.5Binding Material . 996

5.2.6Murum/Kankar/Gravel/Sand. 995.2.7Bituminous Materials . 995.35.3.1Earthwork in Excavation. 995.3.2Earthwork in Embankment . 1005.4Preparation of Subgrade . 1015.5Sub-base . 1015.5.1General . 1015.5.2Spreading and Rolling. 1015.5.3Application of Screening . 1025.5.4Sprinkling and Grouting . 1025.6Base course - Waterbound Macadam Course . 1025.6.1Preparation of Base . 1025.6.2Spreading Coarse Aggregate. 1025.6.3Rolling. Error! Bookmark not defined.5.6.4Application of Blindage . 1035.6.5Sprinkling and Grouting . 1045.6.6Setting and Drying . 1045.7Seal Coat . 1045.7.1Materials . 1055.7.2Preparation of Base . 1055.7.3Construction of Type A Seal Coat . 1055.7.4Rolling. 1065.7.5Construction of Type B Seal Coat . 1065.86Earth work . 99Quality Control . 1065.8.1General . 1065.8.2Permitted Tolerances . 1075.8.3Tests . 1095.8.4Slab Culvert . 1135.8.5Pipe Drains . 114GENERAL BUILDING WORKS . 1176.1Brickwork . 1176.1.1Materials: . 1177

6.1.2Workmanship . 1186.1.3Half Brick Work . 1206.2Un-Coursed Random Rubble Masonry, in Foundation, Plinth and Superstructure 1216.2.1Materials . 1216.2.2Workmanship . 1216.3Coursed Rubble Masonry (First Sort) for Superstructure . 1226.4Concrete Block Masonry. 1236.4.1Materials . 1236.4.2Workmanship . 1246.5Damp - Proof Course. 1266.6Miscellaneous Inserts, Bolts etc. . 1266.7Woodwork in Doors, Windows, Ventilators and Partitions . 1276.7.1Materials . 1276.7.2Workmanship . 1276.7.3Deleted . 1296.7.4Aluminium Doors, Windows, Ventilators and Partitions . 1296.7.5Steel Rolling Shutters . 1306.7.6Rubble Sub-Base . 1326.7.7Base Concrete . 1326.7.8Terrazzo and Plain Cement Tiling Work . 1326.7.9In-Situ Terrazzo Work . 1356.7.10Shahabad / Tandur/ Kota Stone Slab work/granite . 1366.7.11Vitrified Porcelain Tiles . 1376.7.12Carborundum Tile Finish . 1386.7.13Glazed Tile Finish . 1386.7.14In-Situ Cement Concrete Floor Topping . 1396.7.15In-Situ Granolithic Concrete Floor Topping. 1416.7.16Floor Hardener Topping . 1416.7.17PVC Sheet/Tile Flooring. 1416.7.18Acid Resisting Brick/Tiling Work . 1436.7.19Heavy Duty Abrasion Resistant Flooring . 1456.8Epoxy Lining Work . 1456.8.1Materials . 1458

6.8.26.9Workmanship . 145Polyurea Coating . 1466.9.1General . 1466.9.2Technical properties . 1466.9.3Application Methodology . 1466.10 Mineral Based Surface Coating. 1476.10.1General . 1476.10.2Application Methodology . 1486.11 Water-Proofing . 1486.11.1General . 1486.11.2Modified Bituminous Membrane Water Proofing . 1486.11.3Waterproofing of Roofs with Lime Concrete . 1496.11.4Waterproofing of Roofs/Terraces etc. 1516.12 Cement Plastering Work . 1526.13 Cement Pointing . 1546.13.1Materials . 1546.13.2Workmanship . 1546.14 Metal Lath and Wire Fabric . 1556.14.1Materials . 1556.14.2Workmanship . 1556.15 Water-Proofing Admixtures . 1556.15.1Wall Care Putty . 1566.16 Painting of Concrete, Masonry and Plastered Surfaces . 1586.16.1General . 1586.16.2Surfaces Not to be Painted . 1586.16.3Materials . 1586.16.4Service Conditions and Applicable Systems Non-Architectural . 1596.16.5Coating Schedule . 1636.16.6Painting and Coatings – Architectural . 1646.16.7Workmanship . 1666.17 Flashing . 1676.17.1Materials . 1676.17.2Workmanship . 1689

6.18 Thermal Insulation for Ceiling . 1686.18.1“Thermocole” Boards . 1686.18.2Fibre Glass Boards . 1686.19 Plaster of Paris Board False Ceiling/ Gypsum Boards . 1696.19.1Plaster of Paris Boards . 1696.19.2Timber Frame Work . 1696.19.3Metal Frame Work . 1706.20 Construction . 1706.21 Finishing . 1716.22 Fire Stopping . 1716.23 Concrete Roof . 1716.24 False or Cavity Floor . 1726.24.1Frame Work .

based on MBR technology for capacities of 1.5 MLD & 5 MLD along Dahisar river on Design Build Operate (DBO), along with 15 years of Operation and Maintenance and Providing and Laying of sewer network, provision of Interceptors for diversion of DWF, construction of service road and road side