Transcription of NCMA TEK
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ncma TEK. National Concrete Masonry Association an information series from the national authority on concrete masonry technology CRACK control FOR CONCRETE BRICK AND TEK 10-4. Movement control (2001). OTHER CONCRETE MASONRY VENEERS. brick units or half-high concrete masonry units, as shown Keywords: concrete brick, control joints, crack control , joint reinforcement, shrinkage, veneer in Figure 1. Concrete brick units most commonly have a nominal thickness of 4 in. (102 mm), lengths of 8, 10, 12 or 16 in. (203, 254, 305 or 406 mm) and heights from 2 1/2 to 6 in. INTRODUCTION (64 to 152 mm). The specified size of a concrete brick is typically 3 5/ 8 x 2 1/4 x 7 5/ 8 in. (92 x 57 x 194 mm). They are Concrete masonry veneer is used to provide a beautiful, usually laid with bed joints slightly larger than the standard 3.
Recommended control joint locations and located where stress concentrations are likely to cause cracks. The joints allow unrestrained longitudinal movement,
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