concrete masonry unit It is also an acronym for Carnegie Mellon
University.
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There are a few different types of masonry work. The types of
masonry work are veneer, dry set masonry, solid masonry, brick
masonry, concrete block, a-jacks, stonework, gabions, and bagged
concrete.
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In America: 8x8x16 inches, This is the standard CMU: Concrete
Masonry Unit