Defence Research And Development Organisation -DRADO has published Tender For Repairing And Maintenance Of Sewage Disposal System For Various Buildings At Acem Laboratory Under Emu (Randd), Nasik. Submission Date for this Tender is 23-01-2023. Sewerage Construction Tenders in nasik Maharashtra. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | “Repairing and Maintenance of Sewage Disposal System for Various Buildings at ACEM Laboratory under EMU(R&D), Nasik” as per scope of works attached as Appendix-‘A’. |
| 2 | Excavation of Exiesting seweage Pipe Line.Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. |
| 3 | All kinds of soil. |
| 4 | Filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift upto 1.5 m. |
| 5 | Sewage Pit Cleaning by adding Bleching powder etc. |
| 6 | Disposal of sewage(soak pit) through mechnical driven system to the near by sewer line of local authority/dispose off aprroved area by engineer incharge/project manager. |
| 7 | PCC-1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources) |
| 8 | 12 mm cement plaster of mix : |
| 9 | 1:6 (1 cement: 6 fine sand) |
| 10 | Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: |
| 11 | Cement mortar 1:6 (1 cement : 6 coarse sand) |
| 12 | Providing and fixing in position pre-cast R.C.C. manhole cover and frame of required shape and approved quality |
| 13 | Rectangular shape 600x450 mm internal dimensions |
| 14 | Making connection of drain or sewer line with existing manhole including breaking into and making good the walls, floors with cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement plastered on both sides with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement and making necessary channels for the drain etc. complete : |
| 15 | For pipes 100 to 250 mm diameter |
| 16 | Replacment of Exiesting damage sewerage pipe line & providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) all-round S.W. pipes including bed concrete as per standard design & Relevent IS Code : |
| 17 | 150 mm diameter S.W. pipe |
| 18 | Cleaning of chocked sewer line by diesel running vehicle mounting hydraulic operated high pressure suction cum jetting sewer cleaning machine fitted with pump having 4000 litres suction capacity and 6000 litres water jetting tank capacity including skilled operator, supervising engineer etc. for cleaning and partial desilting of manholes and dechocking of sewer lines. Dechocking and flushing of sewer line from one manhole to another by high pressure jetting system of 2200 PSI for sewer line from 150mm dia upto 300mm |
| 19 | Cleaning of under ground sump, Over Head R.C.C. Tank ( independent staging) including disposal of slit and rubbish, all as per direction of Engineer-in-Charge. The cleaning shall consist following operations:- (i) Tank shall be emptied of water by pumping & bottom shall be cleaned of silt and other deposits. (ii) Entire surface area of the sump shall then scrubbed thoroughly with wire brush etc. and pressure washed with water. (iii) Chlorination of RCC internal surface by liquid chlorine. (iv) The treated surface shall be dried using air jetting and all loose particles shall be removal from the surface. (v) Finally the surface shall be treated with ultraviolet radiation etc. as per direction of Engineer-in-Charge |
| 20 | Cleaning and desilting of gully trap chamber, including removal of rubbish mixed with earth etc. and disposal of same, all as per the direction of Engineer-in-charge. |
| 21 | Supplying and making cable/Sewage route marker with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) of size 60 cm X 60 cm at the bottom and 50 cm X 50 cm at the top with a thickness of 10cm including inscription duly engraved as required. |
| 22 | Supplying and fixing cable/Sewage route marker with 10 cm X 10 cm X 5 mm thick G.I. plate with inscription there on, bolted /weIded to 35 mm X 35 mm X 6 mm angle iron, 60 cm long and fixing the same in ground as required. |
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