02-23-2009, 08:58 AM
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#53
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Only looks like a disaster tourist
Join Date: Feb 2007
Location: above 7,000 feet
Posts: 7,208
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Quote:
Originally Posted by TGRR
1952 miles long = 10,306,560 feet
10,306,560 * 475 * 50 = 244,780, 800, 000 cubic feet of concrete.
= 81,593,600,000 yd^3 at 4050 LB/yd^3 = 330,454,080,000,000 pounds, or 165,227,040,000 tons of concrete. Plus rebar.
Got 165.2 billion tons of concrete kicking around?
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At step 3, you should have divided by 27, not 3.
You only need 18.3 billion tons of concrete.
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