The Architecture Puzzler
Created by Dave Guadagni
Architecture Puzzler #103
The approximate setting time for concrete at 70 degrees Fahrenheit (21 degrees Centigrade) is six hours. How long would you guess the setting time is at 40 degrees F. (4 degrees C.)? At 20 degrees F. (-7 degrees C.)?
Question from Last Week:
Architecture Puzzler #102
Acrylics and polyurethanes are two main types of sealant. Which is generally cheaper and can be painted sooner? Typically, a knowledgeable specifier would use the polyurethane on the exterior and the acrylic for the interior. Why?
Answer to Puzzler #102
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2002, Dave Guadagni.
Pouring concrete for the Panama Canal.