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Quizzical Pursuit
—The Architecture Puzzler
Created by Dave Guadagni
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Architecture Puzzler #227
If I told you this common building material is manufactured from CaSO4-2H20, what product would I be referring to?
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Question from Last Week:
Architecture Puzzler #226
Suppose you are specifying white architectural concrete. Which of the following statements are true?
A. A high proportion of sand in a white concrete mix is recommended to help reduce color variations.
B. A high proportion of sand in a white concrete mix is recommended to help prevent “bug holes” (small round cavities that result from air trapped at the form surface during placement).
C. Manganese oxide pigment is sometimes used to intensify the whiteness of white concrete.
D. The formwork materials can affect the concrete color.
Answer to Puzzler #226
Come back next week for the answer to Architecture Puzzler #227!
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http://www.ArchitectureWeek.com/quiz.html
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2005, Dave Guadagni.
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Doing chemistry in the "Laboratory of Thomas Price," painting by Henry Alexander.
Image: www.clipart.com
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