Need to fill a 18" OD x 60 feet steel pipe pile with a wall thickness of 1/2" What is the amount of concrete I need in order to fill?
Thank you

Sean,

1. Find the inside radius: 18"/2 - 1/2" = 8.5"
2. Find the volume of the pipe: (V = r^{2} h) 3.1416 x 8.5" x 8.5" x 60 ft = 13618.836 ft x in^{2}
3. Convert to cubic yards: 13618.836 ft x in^{2} x 1 yd/3 ft x (1 yd/36 in)^{2}

Final answer: 3.5 yards of concrete.

Stephen La Rocque.>

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