CPWD Analysis of Rates · Water Proofing
Providing and laying water proofing treatment on roofs of slabs by applying cement slurry mixed with water proofing cement compound consisting of applying: (a) after surface preparation, first layer of slurry of cement @ 0.488 kg/sqm mixed with water proofing cement compound @ 0.253 kg/sqm. (b) laying second layer of Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm. (c) third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and coarse sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30 cm on parapet wall and tucked into groove in parapet all around. (d) fourth and final layer of brick tiling with cement mortar (which will be paid for separately. For the purpose of measurement the entire treated surface will be measured
- Item number
- 22.6
- Analysis basis
- Details of cost for 10 sqm
- Priced inputs
- 7
- Derived rate
- ₹688.90 / sqm
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 22.6 — Providing and laying water proofing treatment on roofs of slabs by applying cement slurry mixed with water proofing cement compound consisting of applying: (a) after surface preparation, first layer of slurry of cement @ 0.488 kg/sqm mixed with water proofing cement compound @ 0.253 kg/sqm. (b) laying second layer of Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm. (c) third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and coarse sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30 cm on parapet wall and tucked into groove in parapet all around. (d) fourth and final layer of brick tiling with cement mortar (which will be paid for separately. For the purpose of measurement the entire treated surface will be measured — is derived from 7 priced inputs for 10 sqm and works out to ₹688.90 per sqm after water charges, GST, CPOH and cess. The full build-up is below.
- Cement 10x(1.289+0.488) = 17.77 kg
- Sealing fillets @ 10% = 1.77 kg
- Total = 19.54kg = 0.020 tonne
- Bonding material 1.6 kgx30x2 = 96 kg
- Bitumen (blown/residual type) 10x(0.25+0.126)
- = 3.79 kg
- Sealing fillets 10x0.10 kg / sqm = 1.00 kg
- Wastage @ 5% on 4.79 kg = 0.24 kg
- Total = 5.03 kg Say 5.00 kg
- Fibre Glass cloth = 10.00 sqm
- Wastage @ 10 % = 1.00 sqm
- Total = 11.00 sqm
| Code | Input | Unit | Quantity | Rate (INR) | Amount (INR) |
|---|---|---|---|---|---|
| 0367 | Portland Cement (OPC-43 grade)Material | tonne | 0.02 | 5,156.00 | 103.12 |
| 8501 | Polymer modified cementation coatingMaterial | kilogram | 9.69 | 170.00 | 1,647.30 |
| 8502 | Fibre glass clothMaterial | sqm | 11 | 35.00 | 385.00 |
| 0155 | Mason (average)Labour | day | 2 | 857.00 | 1,714.00 |
| 0114 | BeldarLabour | day | 1 | 736.00 | 736.00 |
| 0101 | BhistiLabour | day | 0.25 | 816.00 | 204.00 |
| 9999 | Sundries, brushes etcMaterial | L.S. | 23.4 | 2.27 | 53.12 |
- TOTAL
- 4,842.54
- Add 1 % Water charges on “W”
- 48.43
- TOTAL
- 4,890.97
- Add GST on “X” (multiplying factor 0.2127)
- 1,040.31
- TOTAL
- 5,931.28
- Add 15% CPOH on “Y”
- 889.69
- TOTAL
- 6,820.97
- Add Cess @ 1% on “Z”
- 68.21
- Cost for 10 sqm
- 6,889.18
- Cost for 1 sqm
- 688.92
- Say
- 688.90
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1850. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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