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
100 mm diameter S.W. pipe
- Item number
- 19.3.1
- Analysis basis
- Detail of cost for 100 metre
- Priced inputs
- 1
- Derived rate
- ₹458.50 / metre
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 19.3.1 — 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 : 100 mm diameter S.W. pipe — is derived from 1 priced inputs for 100 metre and works out to ₹458.50 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 = 100 + 12
- +12 = 124 mm
- W = 124 + 300 = 424 mm
- D1 = Depth = 100 + (½ x 124) = 162 mm
- R = 62 mm
- Sin Q = (2x62)/424 = 0.292 therefor Q =
- 17°0’
- Hence Tan Q = 0.3057
- Area = 424 x 162 + (62)² (Cot Q - 3.14 +
- Q)
- = [68688 + 3844 (1/0.3057 - 180° +
- 17°0’)] sqmm
- = [68688 + 3844 (3.27 - 163°0’ x
- 3.14/180)] sqmm
- = (68688 + 3844 x 0.43) sqmm
- = (68688 + 1652.92) sqmm
- = 70340.92 sqmm
- For 100 m length qty. of concrete reqd. =
- 0.07034x100 = 7.034 cum
- Say 70341 sqmm or 0.07034 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 | 7.034 | 6,518.60 | 45,851.83 |
- Cost of 100 metre
- 45,851.83
- Cost per metre
- 458.52
- Say
- 458.50
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1695. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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