An engine servicing facility for the JGL

[doctorwayne]

Another option for covering the seams in the concrete block section is "H" columns. Often, to support such large structures, vertical "H" columns were driven into the ground by a pile driver, then cut-off, either at ground level or at the level of the top of the finished concrete floor. Another length of "H" column would then be bolted or welded to the top of the driven column. When the blocks were laid, they fit between the flanges of the "H", butting-up against the centre web. The only part of the column visible would be flanges, on both the outside and the inside of the wall. The columns would carry the weight of the roof trusses, which extended from front to back on a roundhouse. For the exterior, simply file a flat along the seams, then cement a strip of .010"x.100" or .125" in place to represent the column's flange. You could add this detail on the interior, too.
Here's a picture of such an application - if I recall correctly, the brick which is visible is backed by concrete blocks, with at least one more layer of brick on the interior.
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Wayne