Calculations
Calculations
(OP)
I have calculated the area of concrete in cu.yds.
Concrete Plants sell concrete by the yd. I can't remember what the conversion factor is to convert cu. yds. of concrete to yd. of concrete.
Concrete Plants sell concrete by the yd. I can't remember what the conversion factor is to convert cu. yds. of concrete to yd. of concrete.





RE: Calculations
A cubic yard is referred to as a "yard" in the field.
Remember: The Chinese ideogram for “crisis” is comprised of the characters for “danger” and “opportunity.”
-Steve
RE: Calculations
RE: Calculations
Area = length x width
9 SF = 1 SY
Volume is in cubic yards or cubic feet.
Volume = length x width x depth
27 CF = 1 CY
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Newspaper columnist and language commentator James Kirkpatrick favors the explanation that it is a reference to the capacity of ready-mix concrete trucks (Fine Print: Reflections on the Writing Art). Safire also plumps for this explanation. This explanation, however, is somewhat questionable as the August 1964 issue of Ready Mixed Concrete magazine gives an average concrete mixer as having a capacity of four and a half cubic yards "just a few years ago" and an average of under six and a half in 1962. A 1988 source (Cecil Adams in More of the Straight Dope), states current mixers range from seven to ten cubic yards, with a rough average of nine. While current averages may be on target, when the phrase arose, the average cement payload was less than four and a half cubic yards. So the cement truck explanation is probably incorrect.
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Enjoy! :)
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"...students of traffic are beginning to realize the false economy of mechanically controlled traffic, and hand work by trained officers will again prevail."
Wm. Phelps Eno, ca. 1928
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