The Architecture Puzzler
Created by Dave Guadagni
Architecture Puzzler #523
Which is the best temperature for concrete to cure at: 90, 73, or 55 degrees Fahrenheit (32, 23, or 13 degrees Celsius)?
Question from Last Week:
Architecture Puzzler #522
In the U.S. market, three-quarter-inch- (19-millimeter-) thick hardwood flooring comes in standard widths of 1-1/2, 2, 2-1/4, and 3-1/4 inches (38, 51, 57, and 83 millimeters). What are the U.S. standard widths for half-inch- (13-millimeter-) thick hardwood flooring?
Answer to Puzzler #522
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2011, Dave Guadagni.
A total of 3.25 million cubic yards (2.48 million cubic meters) of concrete was used to build Hoover Dam, shown here under construction in February 1934. An additional 1.11 million cubic yards (850,000 cubic meters) of concrete went into the power plant and other structures on the site.
Photo: Andy Pernick / U.S. Bureau of Reclamation
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