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Breakup

07.23 Supply of polymer based curing compound as per ASTM C 309 or BS 7542-1992 standard and apply by stirring & spraying with motorized sprayers over the surface of fresh concrete free from surface water and avoiding bleeding of concrete maintaining the spray nozzle approximately 450 mm away from the concrete surface with passed back and forth to ensure complete coverage confirming the pump pressure for fine spray and keeping the concrete surface undisturbed until it has sufficient strength to bear surface loads [The suitability of motorized sprayer should be ensured by an application trial] ensuring adequate ventilation to avoid inhalation of vapors and contact with skin and eyes all complete and accepted by Engineer-in-charge.

Break-up for 100 sft Area

SL Item Name Quantity Unit Item Rate (Taka) Item Unit Unit Price (Taka) Sub Total (Taka)
1 Polymer based curing compound Cost of material 2.5 ltr 230 per litre 230 575
1 Ordinary labour Equipment Mechanical Sprayers etc 1 LS 550 per day 773.44 773.44
1 Skilled labour Labour : Skilled Labour 0.5 nos 600 per day 600 300
Sub-Total 1648.44
Contractor's Profit 10% 0.1 164.84
Contractor's Overhead Expenses 3.5% 0.035 57.7
Total 1870.98
Add VAT with adjustment factor. 1.08108 7.5% 0.075 151.7
Grand Total 2022.68
Rate per sft 20.23
Rate per sqm 217.76
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