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a bond that is formed by masonry units and mortar joints on the face of a surface is called a _____ bond.
face
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In two- wythe walls, a structural bond can be made by_______.
overlapping brick between the wythes.
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to locate walls, take measurements from the plans, and_____.
transfer them to the footing or slab
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the type of concrete brick that looks like stone is_____.
slump brick
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in CMU wall, control joints replace_____ every 20ft or so.
standard mortar joints
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ASTM standards define_____ for CMUs.
performance characteristics
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the next step after trimming off mortar burrs should be____.
putting the trimmed mortar back into the mortar box.
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drawing the bond pattern lets the mason calculate
how many masonry units to cut
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it is a good idea to mark the end of every other unit
when drawing the bond pattern
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for the absorption test, if a brick adsorbs 20 drops of water in less than 1.5 minutes, it_________.
needs to be wetted
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the best method of cleaning new brick masonry is________.
sandblasting
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if a masonry unit must be moved after placing,_______.
remove all the mortar on it, and rebutter it
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the device used to connect 2 walls that meet each other at right angles is a_______.
anchor
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the tip of a pointing trowel is used to
cut brick
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the process of laying out masonry units without mortar to establish spacing is known as_____.
dry bonding
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brick can be cut by hand with a ______.
chisel, brick hammer, or trowel
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if a block wall to be reinforced with grout, mortar should be placed on_________.
the face shells only
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always wear_________when cutting masonry
eye and respiratory protection
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when placing block, check alignment by______
looking through the ears
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masons use ______to keep water from leaking from the top of a masonry wall into the units below.
flashing
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ASTM C90 specifies a minimum compressive strength of 800 psi for ______ block.
hollow loadbearing
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the type of stone preferred for sill blocks is _______ stone
limestone ashlar
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the most popular size of concrete brick has________courses in a height of eight inches.
three
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