Rate analysis
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 :
DSR rate₹458.50per metre
100 mm diameter S.W. pipe
- Item code
- 19.3.1
- Sub-head
- SH 19 · DRAINAGE
- Unit
- metre
- Source row
- 236
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Detail of cost for 100 metre | |||||
| 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 | |||||
| 4.1.10 | Rate as per item no 4.1.10 of SH : Concrete Work | cum | 7.034 | ₹6,518.60 | ₹45,851.83 |
Rate build-up
| Say 70341 sqmm or 0.07034 sqm | — |
| Cost of 100 metre | ₹45,851.83 |
| Cost per metre | ₹458.52 |
| Say | ₹458.50 |