Rate analysis
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.
DSR rate₹84.85per sqm
- Item code
- 14.78
- Sub-head
- SH 14 · REPAIRS TO BUILDING
- Unit
- sqm
- Source row
- 2208
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Let a underground tank of capacity 272000 | |||||
| litre or 272 KL and area of tank is 570sqm | |||||
| (a) Dewater and slit cleaning | |||||
| Considering through pumping 20% of water to be lifted, water discharge =(272 x 20/100=54.40KL) | |||||
| 0011 | Hire charges of Pump set of capacity 4000 litres/hour | day | 1.7 | ₹800.00 | ₹1,360.00 |
| 0114 | Beldar | day | 10.88 | ₹736.00 | ₹8,007.68 |
| (b) Scrabing the internal surface of tank | |||||
| 0114 | Beldar | day | 5.13 | ₹736.00 | ₹3,775.68 |
| 0115 | Coolie | day | 2.28 | ₹736.00 | ₹1,678.08 |
| 0101 | Bhisti | day | 2.28 | ₹816.00 | ₹1,860.48 |
| 9999 | Sundries | L.S. | 142.5 | ₹2.27 | ₹323.48 |
| (c) Bleaching | |||||
| 1301 | Bleaching powder | quintal | 0.57 | ₹1,700.00 | ₹969.00 |
| 0006 | Hire charges of Spraying machine including electric charges | day | 14.25 | ₹9,750.00 | ₹1,38,937.50 |
| 0138 | Sprayer (for bitumen, tar etc.) | day | 14.25 | ₹816.00 | ₹11,628.00 |
| (d) Air jetting | |||||
| 0058 | Air compressor | hour | 2 | ₹250.00 | ₹500.00 |
| 0114 | Beldar | day | 0.25 | ₹736.00 | ₹184.00 |
| (e) Ultra Violet Radiation | |||||
| 0085 | Using cost of Ultra Violet Radiation tube | hour | 0.5 | ₹200.00 | ₹100.00 |
| 0114 | Beldar | day | 0.0625 | ₹736.00 | ₹46.00 |
Rate build-up
| Cost of pumping water with pump of capacity 4000 litres per hours , = (54.4/4 =13.6 hours = @ 8 hours/ day = 1.7 day) | — |
| TOTAL | ₹1,69,369.90 |
| Add 1 % Water charges on "W" | ₹1,693.70 |
| TOTAL | ₹1,71,063.60 |
| Add GST on "X" (multiplying factor 0.2127) | ₹36,385.23 |
| TOTAL | ₹2,07,448.83 |
| Add 15% CPOH on "Y" | ₹31,117.32 |
| TOTAL | ₹2,38,566.15 |
| Add Cess @ 1% on "Z" | ₹2,385.66 |
| Cost of 570 sqm | ₹2,40,951.81 |
| Cost of 1 sqm | ₹422.72 |
| Say | ₹422.70 |