Question

How do you convert 45 square meters of asphalt to tons?

Answer 1

1. convert area into a volume by multiplying area by the thickness.
2. Determine the density of the hot mix asphalt from the laboratory mix design. Generally, about 2,245 kg/m3 or 140 lbs/ft3.
3. Divide density of hot mix asphalt by volume to get mass per unit area.
4. Convert to tons by dividing imperial pounds by 2,000 (2000 lbs/ ton), or
5. Convert to metric tones by dividing mass in kilograms by 1,000 (1000kgs/tonne).

For example;  

A square yard is 9 sq ft.  

For an asphalt pavement 4” thick the volume would be;  

9 x (4/12)= 3 cubic feet.  

If the HM density is 140 lbs/cu ft  

Then the mass of hot mix to cover one square yard would be;  

3 x 140= 420lbs  

To determine how many tons or part thereof is required divide by pounds per ton or 2000 for an imperial short ton.  

420/2000 = 0.21 tons per square yard.