CPWD Analysis of Rates · Drainage
Providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) up to haunches of S.W. pipes including bed concrete as per standard design
150 mm diameter S.W. pipe
- Item number
- 19.3.2
- Analysis basis
- Details of cost for 10 metre length pipe
- Priced inputs
- 1
- Derived rate
- ₹743.10 / metre
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.3.2 — Providing and laying cement concrete 1:5:10 (1 cement : 5 coarse sand : 10 graded stone aggregate 40 mm nominal size) up to haunches of S.W. pipes including bed concrete as per standard design : 150 mm diameter S.W. pipe — is derived from 1 priced inputs for 10 metre and works out to ₹743.10 per metre after water charges, GST, CPOH and cess. The full build-up is below.
- Area = WxD1 + 2x½xR Cot QxR [R²/2(3.14/2-Q)] - (3.14/2)R²
- = WD1 + R²(Cot Q) - R²(3.14/2 - Q)(3.14/2)R²
- = WD1 + R²(Cot Q - 3.14 + Q)
- Where Sin Q = [R/(W/2)] = 2R/W
- W = D + X ; X = 300 mm, D = 150 + 16+
- 16 = 182 mm
- W = 182 + 300 = 482 mm
- D1 = Depth = 150 + (½ x 182) = 241 mm
- R = 91 mm
- Sin Q = (2x91)/482 = 0.3776 therefor Q
- = 22°12’
- Hence Tan Q = 0.4081
- Area = 482 x 241 + (91)² (Cot Q - 3.14 +
- Q)
- = [116162 + 8281 (1/0.4081 - 180°+
- 22°12’)] sqmm
- = [116162 + 8281 (2.45 - 157°48’
- x3.14/180)] sqmm
- = [116162 + 8281 x (2.45-2.75)] sqmm
- = [116162 + 8281 x (-0.30)] sqmm
- = (116162 - 2484.3) sqmm = 113677.7
- sqmm
- For 10 m length qty. of concrete reqd.
- = 0.1136777x10 = 1.136777 cum. Say
- 1.14 cum
- Say 113677.7 sqmm or 0.1136777 sqm
| Code | Input | Unit | Quantity | Rate (INR) | Amount (INR) |
|---|---|---|---|---|---|
| Rate as per item no 4.1.10 of SH : Concrete WorkRate as per item 4.1.10Sub-analysis | cum | 1.14 | 6,518.60 | 7,431.20 |
- Cost of 10 metre
- 7,431.20
- Cost per metre
- 743.12
- Say
- 743.10
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1696. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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