CSM Exam 2 Study Guide
What Division Number is Masonry in the CSI Master Format? - answer04
What is the difference between cement, mortar, and concrete? - answer cement is an
ingredient in concrete and mortar; mortar is used as a cushion and adhering agent for
masonry units; cement combines with water to form strong crystals
What is the function of mortar? - answer Cushion masonry units, ensures uniform
bearing, adheres units, seals joints, provide resistance to lateral forces
What are the ingredients in mortar? - answer Portland cement, Aggregate, Hydrated
lime, Water
What are the two most common types of mortar mix: N, S, O, or M? - answerM and S
What does lime do when added to a mortar mix? - answer Improves the workability in
the rehardened plastic state
How are bricks produced? - answerSoft mud process, dry-press process, and stiff mud
process. They can be molded or extruded.
For a plain modular brick, what are the nominal dimensions? - answer4 x 2 and 2/3 x 8
in
Draw an example of a running bond in a brick wall. - answerAll stretchers and each
stretcher is offset by 1/2 brick per course.
How would you span a horizontal opening in a brick wall? - answerBond beam block
shape
What is efflorescence? - answerWhite crystalline deposits on the surface of the
masonry occur when moisture within carries dissolved salts from the mortar to the
surface and then evaporate, leaving salt behind
What does a kiln do with regard to brick production? - answerDrying and chemical
transformation
What is the typical mortar joint thickness used for brick work? - answer3/8"
What does CMU represent? - answerConcrete Masonry Units
, What are the actual dimensions of an 8" by 8" by 16" CMU? - answer7 and 5/8" x 7 and
5/8" x 15 and 5/8"
Is the finished size of a CMU More or Less consistent than the finished size of a brick? -
answerMore consistent
What is the typical mortar joint thickness used for CMUs? - answer3/8"
How can we use grout (or thin concrete) to reinforce a CMU wall? - answerUsed with
steel reinforcement to increase the wall strength
True or False: When laying a block wall, the masons will stack blocks in the center of
the wall to use as a reference and work toward the two ends. - answerFalse
If there are 1.125 square feet in the face of a finished block (including the joint), how
many blocks are required for a 10-ft by 10-ft wall? - answer89
What is a wythe? - answerOne vertical stack of bricks
Why do we leave a cavity between a brick veneer and a CMU wall? - answerTo act as
an internal drainage plane
How do we tie a brick wall to wood frame wall? - answerCorrugated ties have little
strength or stiffness and are recommended only for anchoring low-rise veneer to wood-
framed backup walls
How do we use steel to provide horizontal reinforcement to CMU and Brick walls -
answerBy laying a "zig-zag" patterned steel bar between layers and horizontal mortar
joints
Can the same mortar be used for brick and CMU walls? - answerYes
What is flashing? - answerContinuous waterproof membrane that intercepts water in the
cavity and directs it to the exterior through weepholes
Why do we need weep holes - is it sad to be a brick? - answerThey allow water to drain
out from the wall
Do bricks and blocks have tensile strength? - answerNo*
What are moment joints? - answerWhen flanges are fully joined to a column, both
gravity loads and bending forces are transferred through the connection
What is the difference between iron and steel? - answerSteel is strong and equal in
tension and compression; iron is brittle and stronger in compression than in tension
What Division Number is Masonry in the CSI Master Format? - answer04
What is the difference between cement, mortar, and concrete? - answer cement is an
ingredient in concrete and mortar; mortar is used as a cushion and adhering agent for
masonry units; cement combines with water to form strong crystals
What is the function of mortar? - answer Cushion masonry units, ensures uniform
bearing, adheres units, seals joints, provide resistance to lateral forces
What are the ingredients in mortar? - answer Portland cement, Aggregate, Hydrated
lime, Water
What are the two most common types of mortar mix: N, S, O, or M? - answerM and S
What does lime do when added to a mortar mix? - answer Improves the workability in
the rehardened plastic state
How are bricks produced? - answerSoft mud process, dry-press process, and stiff mud
process. They can be molded or extruded.
For a plain modular brick, what are the nominal dimensions? - answer4 x 2 and 2/3 x 8
in
Draw an example of a running bond in a brick wall. - answerAll stretchers and each
stretcher is offset by 1/2 brick per course.
How would you span a horizontal opening in a brick wall? - answerBond beam block
shape
What is efflorescence? - answerWhite crystalline deposits on the surface of the
masonry occur when moisture within carries dissolved salts from the mortar to the
surface and then evaporate, leaving salt behind
What does a kiln do with regard to brick production? - answerDrying and chemical
transformation
What is the typical mortar joint thickness used for brick work? - answer3/8"
What does CMU represent? - answerConcrete Masonry Units
, What are the actual dimensions of an 8" by 8" by 16" CMU? - answer7 and 5/8" x 7 and
5/8" x 15 and 5/8"
Is the finished size of a CMU More or Less consistent than the finished size of a brick? -
answerMore consistent
What is the typical mortar joint thickness used for CMUs? - answer3/8"
How can we use grout (or thin concrete) to reinforce a CMU wall? - answerUsed with
steel reinforcement to increase the wall strength
True or False: When laying a block wall, the masons will stack blocks in the center of
the wall to use as a reference and work toward the two ends. - answerFalse
If there are 1.125 square feet in the face of a finished block (including the joint), how
many blocks are required for a 10-ft by 10-ft wall? - answer89
What is a wythe? - answerOne vertical stack of bricks
Why do we leave a cavity between a brick veneer and a CMU wall? - answerTo act as
an internal drainage plane
How do we tie a brick wall to wood frame wall? - answerCorrugated ties have little
strength or stiffness and are recommended only for anchoring low-rise veneer to wood-
framed backup walls
How do we use steel to provide horizontal reinforcement to CMU and Brick walls -
answerBy laying a "zig-zag" patterned steel bar between layers and horizontal mortar
joints
Can the same mortar be used for brick and CMU walls? - answerYes
What is flashing? - answerContinuous waterproof membrane that intercepts water in the
cavity and directs it to the exterior through weepholes
Why do we need weep holes - is it sad to be a brick? - answerThey allow water to drain
out from the wall
Do bricks and blocks have tensile strength? - answerNo*
What are moment joints? - answerWhen flanges are fully joined to a column, both
gravity loads and bending forces are transferred through the connection
What is the difference between iron and steel? - answerSteel is strong and equal in
tension and compression; iron is brittle and stronger in compression than in tension
