Convert Tons to Cubic Yards

I have a sub contractor who placed asphalt pavement for me and he invoiced by the ton. The Architect pays by the Cubic Yard. We placed 423.36 tons of type I asphalt 1 1/2" thick. We placed 641.64 tons of Type II asphalt 2 1/2" thick. Please, Please tell me how to make this conversion. I really need to understand so I can address this in the future too. Thanks

[Robert Fogt]

You need to know the density.

I found data on crushed asphalt, but I do not know what is meant by type I and type II asphalt.

I have 11 tons of asphalt but our specs say we need so many cubic yards of asphalt how do I convert it to cubic yards?

[Robert Fogt]

You need to know the length and width (or the area), in addition to the thickness.

length in yards * width in yards * thickness in yards = cubic yards

area in square yards * thickness in yards = cubic yards

I'm a new superintedant for a construction company. I have a similar question, but I'm trying to convert #57 stone from cubic yards to tons. This information would help me for many years I am sure. Any help will be appreciated.

just weigh 1 cubic foot of your stone. 1ft x 1ft x 1ft.Then multiply that weight by 9....that is how much 1 cubic yard weighs

[Robert Fogt]

I tried searching for the density of #57 stone but came up empty. You may have to weigh a known amount and use that for the density.

Though it doesn't have to be as much as a cubic foot. If its a gravel type rock then just fill up any known volume, such as a gallon milk jug. You'd get the weight/gallon density which can be converted to pounds/cubic yard.

Originally Posted by Unregistered

just weigh 1 cubic foot of your stone. 1ft x 1ft x 1ft.Then multiply that weight by 9....that is how much 1 cubic yard weighs

? MULTIPLY BY 27 (27 CUBIC FT IN A CUBIC YARD)

1 cubic yard = 1.35 tons (approx.)

Therefore, 1 ton = 0.7407 cubic yards.

Hope it helps.

Nice info unregistered but where did you find the reference? I will use the 1.35 tons figure in my stone calculations but I am searching for a general reference that gives figures for other stone sizes as well. Let me know if you find it thanks, Sonny.