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View Diary: Bricks, or the Damnedest Clues in the Damnedest Places (152 comments)

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  •  Masonry 101 - glossary (24+ / 0-)

    Hi Dr. Lori, I am "dr." of buildings, aka architect.

    Vertical modules of brick are courses.
    Horizontal layers are wythes.

    Klinkers refer to the entire "off" brick itself, not just the black specks from over-firing.  These bricks are usable, but more often rejected due to color, and worse- if they are misshapen or over-size.  It takes time to select and integrate them into a wall- for both aesthetic and constructability issues.  So while they are usable, it's not a surprise a builder would toss them aside- they are slowing him down- he'll figure out where to use them later.  It's not necessarily an indicator of low regard for them as much as expedience and design.

    Remember the history of masonry is rich.  Literally as old as the pyramids.

    •  Thank you! As you can tell (15+ / 0-)

      I'm not a dr. of buildings, but of medieval manuscripts.  And I need all the instruction I can get on historic restoration.

      Interesting that klinker refers to the entire brick.  The mason who taught me how to repoint used the term only in reference to black specks in overfired bricks, which he said were rejected because they were thought to be weakened.  And of course "clinker" also refers to the slag in the dirt left by generations of coal furnaces burning anthracite.

      As the limewash over the main house faded, was renewed and faded again and again, the original color (ocher) survived only where the porches protected the bricks.  Still, all over the house, the bricks displayed tremendous variations in color.  Last year I went back over the seven sides that are done with ocher limewash in six layers.  Worked like a charm.

      "I speak the truth, not as much as I would, but as much as I dare, and I dare a little the more, as I grow older." --Montaigne

      by DrLori on Fri Feb 15, 2013 at 09:47:09 AM PST

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