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Rate analysis: premix asphalt carpeting

Short answer

For 100 m², aggregate 5.43 m³, bitumen 531 kg, labour, fuel and roller give sub-total Rs 102,315; add 15% overhead/profit gives Rs 117,662.25, so the rate is Rs 1,176.62 per m² excluding VAT.

Prepare an analysis of rate for providing, laying and consolidation of 40 mm thick premix asphalt carpeting per m².

Basis

Rate for providing, laying and consolidating 40 mm thick premix asphalt carpeting, worked out for 100 m² and then divided to give the rate per m². Quantities follow the usual DUDBC / DoR (Department of Roads) practice; rates are illustrative.

Assumptions:

  • Density of compacted mix = 2,300 kg/m³, so mass per m² = 0.04 x 2,300 = 92 kg.
  • Bitumen content 5.5% of the mix = 5.06 kg/m² (plus 0.25 kg/m² for the tack coat on the base); aggregate = 86.94 kg/m², and a bulk density of loose aggregate of 1,600 kg/m³ gives 0.0543 m³/m².

Analysis (per 100 m²)

DescriptionQtyUnitRate (Rs)Amount (Rs)
Aggregate (20 mm and 12 mm graded), loose5.43m³3,500.0019,005.00
Bitumen 60/70 (5.06 kg/m² in the mix + 0.25 kg/m² tack coat)531kg110.0058,410.00
Labour: skilled (mixing, rakers)2md1,200.002,400.00
Labour: unskilled15md900.0013,500.00
Fuel for heating and boiler1L.S.6,000.006,000.00
Tools and equipment: 8-10 t roller (1 hr)1hr3,000.003,000.00
Sub-total102,315.00
Contractor's overhead and profit15%15,347.25
Total per 100 m²117,662.25

Answer: Rate = 117,662.25 / 100 = Rs 1,176.62 per m² (excluding VAT).

✓ Answer checked by Claude Opus 5.5 (high effort)

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