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24.19.1 Providing prime coat @ 1.2 liter/sqm with cutback bitumen to be prepared by cutting back 60/70 penetration grade bitumen in the ratio of 100 parts by volume of bitumen to 40-60 parts by volume of kerosene depending on the porosity of surface and will be decided by field trials, carefully cleaning of the surface of base material to be primed and spraying cutback bitumen at a temperature from 100 degree celcius to 120 degree celcius by appropriate hand device etc.all complete as per direction of the Engineer-in-charge.

Considering 100 sft of work

SL Item Name Quantity Unit Item Rate (Taka) Item Unit Unit Price (Taka) Sub Total (Taka)
1 60/70 grade bitumen for road work Cost of materials : Bitumen (60/70 grade) 16.4 lbs 56000 per M. ton 25.4 416.56
2 Kerosene / Diesel Kerosene 3.75 liter 68 per litre 68 255
3 Fire-wood Fire wood 0.333333 mnds 220 per mound 220 73.33
4 Mason / Mosaic mistry Labour charges: Mason 0.002 no 700 per day 700 1.4
5 Skilled labour Skilled labour 0.02 no 600 per day 600 12
6 Ordinary labour Ordinary labour 0.14 no 550 per day 550 77
Sub-Total 835.29
Contractor's Profit 10% 0.1 83.53
Contractor's Overhead Expenses 3.5% 0.035 29.24
Total 948.06
Add VAT with adjustment factor. 1.08108 7.5% 0.075 76.87
Grand Total 1024.93
Rate per sft 10.25
Rate per sqm 110.33
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