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SERVICE TIP Split-Fluted Concrete Units Obtaining a uniform appearance on the split-face surface of split-fluted concrete units can be extremely difficult. This is due to the position of the core bar, which prevents the concrete from completely filling the area directly underneath it, thus preventing direct compaction of that surface. Consequently, the finish on the upper part of the concrete unit is never identical to the lower part (see Illustration A). By using a different set up that includes a center plunger, and fluted cores that are held by two core bars (see Illustration B), this problem can be eliminated. It is also possible to personalize the look of the split-face concrete unit by modifying the stripper shoes (Illustration C).
Posted 19 March 2001 |
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