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1. 
   calvin | Jun 11, 2007 01:32pm | #1

    

   View Image				View Image
   View Image View Image View Image View Image View Image View Image View Image View Image View Image View Image	The figures shown below are intended for “rule of thumb” use only. Unit Quantities 2 1/2 High Block (21/4x8x16)–3.10 block per SF of wall area Half High Block (4x8x16)–2.25 block per SF of wall area Standard Block (4”, 8”, 10”, 12”)–1.125 block per SF of wall area Face Brick Modular–7.0 brick per SF of wall area Oversize Brick–6.0 brick per SF of wall area Utility Brick–3.0 brick per SF of wall area Mortar Quantities Block–3 bags per 100 block Face Brick Modular–7 bags per 1000 brick Oversized Brick–8 bags per 1000 brick Utility brick–10 bags per 1000 brick Sand Quantities Sand–1 CY per 7 bags mortar Horizontal Wall Reinforcing Quantities Horizontal Wall Reinforcing–SF/1.33 Cavity Fill Insulation Quantities Cavity Fill Insulation–4 CF per bag Approximate Volume Required To Fill Core Voids In Block 6x8x16 2 core 0.17 CF/block 8x8x16 2 core 0.25 CF/block 10x8x16 2 core 0.33 CF/block 12x8x16 2 core 0.39 CF/block Approximate Quantities Of Concrete Required To Fill Bond Beams 6x8x16 BBL 0.173 CF concrete per LF 8x8x16 BBL 0.22 CF concrete per LF 8x8x16 DEEP BBL 0.46 CF concrete per LF 12x8x16 BBL 0.37 CF concrete per LF 12x8x16 DEEP BBL 0.74 CF concrete per LF   Number Of Blocks Per Cube Size Arch PSF No Per Cube Arch PSMF No Per Cube Arch GF No Per Cube 21/4x4x16 270 --- --- 4x4x16 240 240 288 4x8x16 120 120 144 6x4x16 100 100 120 8x8x16 75 75 90 12x8x16 50 50 60   Typical Concrete Masonry Unit Dimensions Nominal Actual Unit Size Faceshell Thickness( a) Web Thickness (a) Inch- Pound Metric Inch- Pound Metric Inch- Pound Metric Inch- Pound Metric (in.) (mm) (in.) (mm) (in.) (mm) (in.) (mm) 4x8x16 102x203x406 35/8x75/8x155/8 92x194x397 3/4 19 3/4 19 6x8x16 152x203x406 55/8x75/8x155/8 143x194x397 1 25 1 25 8x8x16 203x203x406 75/8x75/8x155/8 194x194x397 11/4 32 1 25 10x8x16 254x203x406 95/8x75/8x155/8 244x194x397 13/8 35 11/8 29 12x8x16 305x203x406 115/8x75/8x155/8 295x194x397 11/2 38 11/8 29 (a) Dimensions are minimum required by ASTM C 90 (a) (ref,3).   Designing Walls To Avoid Cutting Units On Jobs Rule 1. A dimension in even number of feet (2 ft., 4 ft., 6 ft., etc.) will always work out in full-and half-block.   Rule 2. A dimension in an even number of feet plus 8 in. (2 ft. 8 in., 4 ft. 8 in., 6 ft. 8 in., etc.) will always work out in full-and half-block. Rule 3. A dimension in an odd number of feet (1 ft., 3 ft., 5 ft., etc.). will not end in full-and half-block. But an odd number of feet plus 4 in. (1 ft. 4 in., 3 ft. 4 in., 5 ft. 4 in., etc.) will always work out in full-and half-block.   Examples of wrong and right planning of concrete masonry wall openings   View Image View ImageView ImageView ImageView ImageView ImageView Image View ImageView ImageView ImageView Image View Image View Image View Image View Image View Image View Image View Image View Image View Image View Image

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