Analysis for recycling of Bituminous pavement by Milling (DBM) (below 80Â mm) | |||||
---|---|---|---|---|---|
S. no. | Description of items | Unit | Qty | Rate | Amount |
 | MORT&H specification |  |  |  |  |
 | Recycling—of Bituminous Pavement with Central recycling Plant |  |  |  |  |
 | Recycling pavement by cold milling of existing bituminous layers, planning the surface after cold milling, reclaiming excavated material to the extent of 30% to the required quantity, hauling and stockpiling the reclaimed material near the central recycling plant after carrying out necessary checks and evaluation, adding fresh material including mixing |  |  |  |  |
 | Unit = cum |  |  |  |  |
 | Taking output-120 cum (276 Tonne) |  |  |  |  |
(A) | Labour | Â | Â | Â | Â |
 | Mate | Day | 0.48 | 585.00 | 280.80 |
 | Mazdoor skilled | Day | 2.00 | 585.00 | 1170.00 |
 | Mazdoor | Day | 10.00 | 585.00 | 5850.00 |
 | (A) Total |  |  |  | 7300.80 |
(B) | Machinery | Â | Â | Â | Â |
1 | Mechanical broom @ 1250 sqm hour | Hour | 1.28 | 310.50 | 397.44 |
2 | Air compressor 250cfm | Hour | 1.28 | 337.50 | 432.00 |
3 | Bitumen pressure distributor @1750sqm per hour | Hour | 0.91 | 934.20 | 850.12 |
4 | Hot mix plant 100-120TPH producing an average of 75 tonne per hour | Hour | 3.00 | 15,075.45 | 45,226.35 |
5 | Electric generator set 250 KVA | Hour | 3.00 | 1350.00 | 4050.00 |
6 | Front end loader 1.00 cum bucket capacity | Hour | 3.00 | 702.00 | 2106.00 |
7 | Tipper 5.5 cum capacity | Hour | 18.00 | 270/2 | 2430 |
8 | Smooth wheeled roller 8–10 tonne | Hour | 3.00 × 0.65* | 400.95 | 781.85 |
9 | Vibratory roller 8 tonne | Hour | 3.00 × 0.65* | 1341.90 | 2616.71 |
10 | Smooth wheeled tandem roller 6–8 tonne | Hour | 3.00 × 0.65* | 400.95 | 781.85 |
 | (B) Total |  |  |  | 59672.32 |
(C) | Material | Â | Â | Â | Â |
I | Bitumen | Â | Â | Â | Â |
 | A bitumen content is 4.5% by weight of mix. For reclaimed material, fresh bitumen will be required to the extent of 60% of normal requirement |  |  |  |  |
 | In a mix of 276 tonne, 82.8 tonne is reclaimed and balance 193.2 tonne is fresh mix |  |  |  |  |
 | Bitumen VG-30 required for reclaimed mix of 82.8 tonne @ 60 per cent = 82.8 × 0.60 × 0.045 = 2.24 | Tonne | 2.24 | 53,983.00 | 120,921.92 |
 | Bitumen VG-30 required for fresh mix of 193.2 tonnes = 193.2 × 0.045 = 8.69 | Tonne | 8.69 | 53,983.00 | 469,112.27 |
II | Aggregates | Â | Â | Â | Â |
 | Percentage of mix requiring fresh aggregates—70% |  |  |  |  |
 | Weight of fresh mix = 276 × 0.70 = 19.2 tonne |  |  |  |  |
 | Weight of fresh aggregate in the mix = 193.2 × 0.96 = 185.47 tonne |  |  |  |  |
 | Taking average density of 1.6 tonne/cum, total volume of Aggregate = 115.92 cum |  |  |  |  |
 | Size-wise requirement of fresh aggregates |  |  |  |  |
 | 37.5–25 mm @ 23% | cum | 26.66 | 856.13 | 22,824.43 |
 | 25–10 mm @ 15% | cum | 17.39 | 856.13 | 14,888.10 |
 | 10–5 mm @ 20% | cum | 23.18 | 856.13 | 19,845.09 |
 | Below 5 mm @ 42% | cum | 48.69 | 776.13 | 37,789.77 |
 |  (C) Total |  |  |  | 685381.58 |
 |  (A+B+C) |  |  |  | 752354.70 |
(D) | 5% over charges @ % on (a + b + c) |  |  |  | 37,617.74 |
 |  (D) Total |  |  |  | 789972.44 |
(E) | 10% contractor’s profit@ % on (a + b + d) on Rs | 104,590.86 |  |  | 10459.09 |
 | Cost for 120 cum of DBM = (a + b + c + d + e) = Grand Total |  |  | G. Total | 800432 |
 | Rate per sqm = (a + b + c + d + e)/120 |  |  |  | 6670.26 |
 |  Say Rs. |  | 6670.30 | /- P.cum |  |
(F) | Cost of reclaimed DBM per km | 23,34,605 | Per km | Â | Â |