break down of unit rates 17-02-14

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BREAKING DOWN FOR MAJOR RATES S/N DESCRIPTION BREAK DOWN FOR UNIT RATES 1 Asphaltic Binding Course (100mm) thick Haulage for 1ton = Cost of asphalt & haulage = 22,25 i N22,250 x 5 = N111,250 for 1 Tipper For 100mm thick asphaltic binder course Allow 0.75%(i.e 25% shrinkage) for compaction 6,505.85 ii Labour for laying and compaction with equipment 400.00 iiI 200.00 7,105.85 Add 25% profit and overhead 1,776.46 Approximately use m 8,882.31 8,882.31 Approximately use m 9,000.00 S/N DESCRIPTION BREAK DOWN FOR UNIT RATES 2 Asphaltic wearing course (50mm) thick UNIT RATE/M 2 1 tonne of Asphalt from quarry site & VAT = N 18,250.00 5 tons = 3.80m 3 1m 3 = 111,250/3.80 = N29,276.32 1m 3 will lay 6.0m 2 6.0 x 0.75% = 4.5m 2 1m 3 = 29,276.32/4.5 Allow N 400/m 2 Allow N 200 for Tack Coat UNIT RATE/M 2

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Breakdown Unit Rate Calculation for Roadworks - Sample Calculation

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BREAKING DOWN FOR MAJOR RATES

S/NDESCRIPTIONUNIT RATE/M2BREAK DOWN FOR UNIT RATES

1Asphaltic Binding Course (100mm) thick

1 tonne of Asphalt from quarry site & VAT = N18,250.00Haulage for 1ton = 4,000.00Cost of asphalt & haulage = 22,250.00i5 tons = 3.80m3N22,250 x 5 = N111,250 for 1 Tipper1m3 = 111,250/3.80 = N29,276.32

For 100mm thick asphaltic binder course1m3 will lay 6.0m2Allow 0.75%(i.e 25% shrinkage) for compaction6.0 x 0.75% = 4.5m21m3 = 29,276.32/4.5 6,505.85

iiLabour for laying and compaction with equipmentAllow N400/m2400.00

iiIAllow N200 for Tack Coat200.007,105.85Add 25% profit and overhead1,776.46Approximately use minimum8,882.31

8,882.31Approximately use maximum9,000.00

S/NDESCRIPTIONUNIT RATE/M2BREAK DOWN FOR UNIT RATES

2Asphaltic wearing course (50mm) thick

1 tonne of Asphalt from quarry site & VAT = N18,250.00Haulage for 1ton = 4,000.00Cost of asphalt & haulage = 22,250.00i5 tons = 3.80m3N22,250 x 5 = N111,250 for 1 Tipper1m3 = 111,250/3.80 = N29,276.32

For 50mm thick asphaltic wearing course1m3 will lay 12m2Allow 0.75%(i.e 25% shrinkage) for compaction12 x 0.75% = 9m21m3 = 29,276.32/93,252.92

iiLabour for laying and compaction with equipmentAllow N735/m2735.00

iiIAllow 0.45L/m2for Tack Coat200.004,187.92Add 40% profit and overhead1,675.17Approximately use 5,863.095,863.09

Approximately use maximum5,863.09

S/NDESCRIPTIONUNIT RATE/M2BREAK DOWN FOR UNIT RATES

3First & Second Coat surface dresssing

1 tonne of granite from quarry site & Haulage = N5,600i5 tons = 3.80m3N5,600 x 5 = N28,000 for 1 Tipper1m3 = 28,000/3.80 = N7,368.42

1m3 will lay 20m2Allow 0.75%(i.e 25% shrinkage) for compaction20 x 0.75% = 15m21m3 = 7,368.42/15 491.23

Second Coat638.60

iiLabour for laying and compaction with equipmentAllow N300/m2300.00

iiIAllow 1.3L/m2 @ N100 for prime coat130.00Spraying with Tar Boiler (N20/m2)20.00Blinding with sand or quarry dust for blinding(5000 x 0.013)65.00Labour for priming15.001,659.82Add 30% profit and overhead497.95

Approximately use minimum2,157.77

Approximately use maximum2,178.20

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