Module Six Masonry Units and Installation Techniques
Splitter
The device used to cut masonry units by exerting tremendous force through gearing and hydraulic power is called a________
Closure unit
The last brick to fill a course
3/4 inch
According to ACI the thickness of a mortar joint cannot exceed________
Laying Forward
Buttering a brick before placing it in a wall is referred to as________
Bond
Laying out masonry units to establish spacing.
Racking
Shortening each course of masonry by half a unit so it is shorter than the course below it
Range
To align the masonry unit or wall along the plane or face of the wall
Tail
To check the spacing of head joints by checking the diagonal edges of the courses on a lead or corner
Plumb
The most effective way of holding a brick is________
20 feet
A control joint in concrete masonry walls replaces a standard mortar joint approximately every________
Return
A corner in a structure or lead
Clouds of dust
A disadvantage to using a power saw to dry cut block or brick is________
Corner lead
A lead built at a corner in which each course of masonry is shorter than the course below it
Pattern Bond
A purely decorative bond formed by masonry units and mortar joints on the face of a surface is called a________
Hurricane strap
A special kind of anchor that is used to tie the frame to the foundation
Frogged
A style of brick in which a depression in the bedding surface of a brick lightens its weight
Course Height
After laying a brick, the first check is always________
Veneer Tie
An anchor that is used to tie veneer to masonry structures
Structural backing
Anchors used with brick veneers are attached to________
Scored
Before cutting a masonry unit, the line on which the cut will be made must be________
3/8 inch
Concrete brick is designed to be laid with a __________ mortar joint
Expansion
Cracking in brick construction is caused by________
Allow moisture in a wall to exit through a weep system
Flashing is used in masonry construction to ________
Reduce Weight
Holes are formed into cored brick to________
Slack to the line
Masonry units set too far away from the mason's line
Stack bond Pattern
On a loadbearing wall, the wythe must be bonded to its backing with rigid steel ties when using the________
Rain from splashing dirt and mortar on wall
Stand scaffold boards on edge at end of day to prevent________
25 percent
The amount of surface area on an uncored block that has holes extending through it is equal to less than________
Pounds per square inch
The compressive strength of block is measured in________
Block require a different spreading technique
The main difference between laying block corners and brick corners________
18 inches
The maximum distance that anchors should be spaced on center vertically is________
Compressive Strength
The measure of how much weight a CMU can support without collapsing (measured in psi)
Lintel
The support beam over an opening such as a window or door (AKA Header)
Buttering
The term used to describe applying mortar to block is ________
Freestanding and Portable
The two models of masonry saws available are________
Spread
To lay a bed of mortar in a line for a course of masonry units
Crowd the line
To touch the mason's line or to place a masonry unit too close to the line
In your hand
When cutting a concrete masonry unit with a masonry hammer, the block should NOT be placed________
Place the scored block on top of another block so that the waste part hangs free
When cutting with the mason's hammer, once the masonry unit has been scored,________
Exceeds 1 & 1/2 minutes
When measuring the absorption rate of brick using the medicine-dropper test, the brick does not need to be wetted if the time for absorption________
At a 45 degree downward angle, several units away from the corner
When setting up a line using line pins, the line pin should be driven securely into the lead joint
The brick next to it
When the latest brick has been placed, align it with________
Grease pencil
When using a wet-cut saw to cut masonry units, mark the cutting lines using a________
300 psi
When using high-pressure water washing to clean brick, the BIA recommends that nozzle pressures not exceed________
12 inches
When using pressure-washing equipment to clean block, the NCMA recommends that the distance from the tip to the masonry should be at least________