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Old 02-23-2009, 08:58 AM   #10
HungLikeJesus
Only looks like a disaster tourist
 
Join Date: Feb 2007
Location: above 7,000 feet
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Quote:
Originally Posted by TGRR View Post
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?
At step 3, you should have divided by 27, not 3.

You only need 18.3 billion tons of concrete.
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