Answers . 01 May 2002                     
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    NEXT WEEK

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    Quizzical Pursuit
    —The Architecture Puzzler

    Created by Dave Guadagni

    Solution to Last Week's Puzzler
    Architecture Puzzler #95

    Question

    Sand is a common abrasive used for removing lead paint from steel framing and interior brickwork. In recent years, a second organic material has been gaining favor as an abrasive for this use. What is this alternative abrasive and why is it gaining favor?

    Answer

    Crushed walnut shells are sometimes used as an abrasive because they weigh less than sand and therefore cost less at hazardous waste disposal sites.
     


     

    Okay, got it? Now try this week's Puzzler:

    http://www.ArchitectureWeek.com/quiz.html


     

    Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects

    Quizzical Pursuit is Copyright 2002, Dave Guadagni.

    AW

    ArchWeek Image

    Paint once desirable, no longer welcome.
    Image: arttoday.com

     
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