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The weight of fly ash per cubic foot is based on the specific gravity of the particular fly ash multiplied by the weight of water (62.4 lbs.) per cubic foot.

Most fly ash has a specific gravity between 2.15 and 2.30, depending on the source.

To calculate the weight per cubic foot of fly ash with a specific gravity of 2.3, the formula is as follows:

2.3 X 62.4 = 143.52 lbs per cubic foot

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15y ago

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More answers

It varies based on the density of the mix, but should be around 145 lbs per cubic foot. 27cu ft/cu yd -> 27 x 145 = 3915 pounds per cubic yard

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Wiki User

16y ago
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Fly ash typically weighs around 40-60 pounds per cubic foot.

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AnswerBot

10mo ago
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If the fly ash has not been compacted, the mass will be between 900 and 1500 pounds. If it has been compacted then the mass per cubic yard will increase to between 1900 and 2500 pounds.

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Wiki User

7y ago
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3000

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Wiki User

13y ago
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Q: What does fly ash weigh per cubic foot?
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