![]() ![]() Soft SplitĪ soft split unit is produced using a special mold which textures the face of the unit as it is removed from the mold. Walls utilizing a variety of split face units are shown in Figure 1. This 10% limit does not apply, however, in. ASTM C90 prescribes minimum faceshell thickness requirements for all loadbearing concrete masonry units, but also contains a variance for split face units where up to 10% of a split faceshell can be less than the minimum specified thickness, but not less than ¾ (19 mm). Split face units are governed by ASTM C90, which includes an allowance to account for the rough face. Rough textures, like those available with split face units, are often used in areas prone to graffiti, as the texture tends to discourage graffiti vandals. Split-faced units can also be manufactured with ribs or scores to provide strong vertical lines in the finished wall. Because coarse aggregate is also fractured and exposed in this process, aggregate selection can alter the final appearance. Split faced units have a natural stone-like texture produced by molding two units face-to-face, then mechanically splitting them apart after curing, creating a fractured surface. Consult a local manufacturer for final unit selection.ĪRCHITECTURAL UNIT TYPES Split Faced Units However, manufacturers may carry additional products not listed here, and conversely, not all products listed will be available in all locations. The units described herein are some of the more common architectural concrete masonry units. In some cases, noted below where applicable, additional provisions govern which are more applicable to the specific unit. Architectural units comply with the same quality standards as conventional concrete masonry, Standard Specification for Loadbearing Concrete Masonry Units, ASTM C90 (ref. Some units are available with the same treatment or pattern on both faces, to serve as both exterior and interior finish wall material, increasing both the economic and aesthetic advantages. The term “architectural concrete masonry units” typically is used to describe units displaying any one of several surface finishes that affects the texture of the unit, allowing the structural wall and finished surface to be installed in a single step.Īrchitectural concrete masonry units are used for interior and exterior walls, partitions, terrace walls, and other enclosures. One of the most significant architectural benefits of designing with concrete masonry is its versatility – the finished appearance of a concrete masonry wall can be varied with the unit size and shape, color of units and mortar, bond pattern, and surface finish of the units.
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