The Architecture Puzzler
Created by Dave Guadagni
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.
Question from Last Week:
Architecture Puzzler #225
Born in 1852, his father was a coppersmith and pot and kettle maker. Palacio Guell, Casa Batllo, Casa Mila, and the church Sagrada Familia are his better known projects. Who is the architect and which architectural style is he associated with?
Answer to Puzzler #225
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Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects
Quizzical Pursuit is Copyright 2005, Dave Guadagni.
The white concrete of Notre Dame du Haut at Ronchamp, France, by Le Corbusier, 1955.
Great Buildings Photo © Donald Corner and Jenny Young