Division 4: Masonry

Question 1

A proportioned mixture of siliceous materials and cement which, after being prepared in a plastic state with water, hardens into a stonelike mass.

Answer 1

Mortar

Question 2

Mortar applied to wall surface as a preparation or a hard finish coat.

Answer 2

Plaster

Question 3

The proportioned mixture of cement, fine aggregate and water.

Answer 3

Cement mortar

Question 4

The strength of the mortar also appears to be increased by the addition of not more than ____ of hydrated lime.

Answer 4

15%

Question 5

For rubble stonework under ordinary conditions a mortar composed of __ parts of sand to __ part of cement.

Answer 5

4, 1

Question 6

A three coat job Consists of a first binding coat called ______.

Answer 6

Scratch coat

Question 7

Second straightening coat called ________.

Answer 7

Brown-coat

Question 8

Final coat

Answer 8

Finish coat

Question 9

Mixed with water, sand and sometimes with lime putty; used for two and three-coat finish surfaces for exterior and interior walls and ceilings.

Answer 9

Portland cement Plaster

Question 10

Scratch, brown coats and sand float finish

Answer 10

1 cement, 1/4 lime putty, 3 sand

Question 11

The finish coat may be smooth or hard finish or, if sand is added, called a _________.

Answer 11

Sand float finish

Question 12

In three coat plastering work, the scratch and brown coats are __ thk at minimum; the finish coat is __ with a minimum of __ at any point

Answer 12

1/4” thk
1:8”
1/16”

Question 13

Thickness of plaster coats depends on the _______ to which the plaster is plaster is applied.

Answer 13

Type of material

Question 14

Plaster of Paris mixed with clay, lime and other materials in combinations covered by trademarks or patents.

Answer 14

Gypsum Plaster

Question 15

Same as gypsum plaster but mixed to meet established standards.

Answer 15

High-strength gypsum plaster

Question 16

Gypsum plaster premixed with fibers

Answer 16

Fibered gypsum plaster

Question 17

Gypsum plaster mixed with fine white sand.

Answer 17

Prepared gypsum plaster

Question 18

Gypsum plaster mixed with ingredients develops more adhesive strength

Answer 18

Bonding plaster

Question 19

Gypsum plaster mixed on the job with water or other suitable mineral aggregate.

Answer 19

Lightweight gypsum plaster or fire resistant plaster

Question 20

Plaster of paris mixed with alum or borax or other materials

Answer 20

Keene’s cement

Question 21

For ornamental plaster work and carvings

Answer 21

Plaster of Paris

Question 22

For ornamental plaster work and castings.

Answer 22

Molding Plaster

Question 23

Gypsum plaster mixed with other ingredients to develop small air throughout the plaster in combinations covered by trademarks or patents.

Answer 23

Acoustic plaster

Question 24

A highly decorative type of plaster work developed in Italy

Answer 24

Sgraffito

Question 25

A built up construction or combination of building materials as clay, concrete, or stone set in mortar or plain concrete.

Answer 25

Masonry

Question 26

The horizontal surfaces on which the stones or bricks of walls lie in the courses.

Answer 26

Bed

Question 27

A continous layer of bricks, stones or other masonry units.

Answer 27

Course

Question 28

Each continuous, vertical section of the wall, one masonry unit thick.

Answer 28

Wythe or Tier

Question 29

The horizontal surfaces on which the stones or bricks of walls lie in the courses

Answer 29

Bed

Question 30

A continuous layer of bricks, stones or other masonry units

Answer 30

Course

Question 31

Each continuous, vertical section of the wall, one masonry unit thick.

Answer 31

Wythe or Tier

Question 32

That connection between bricks, stones or other masonry units formed by lapping them one upon another carrying up the work

Answer 32

Bond

Question 33

A brick or block masonry laid lengthwise of a wall

Answer 33

Stretcher

Question 34

A brick or block masonry extending over the thickness of the wall

Answer 34

Header

Question 35

A unit laid on its end with its face perpendicular to the face of the wall.

Answer 35

Soldier

Question 36

The corner stones at the angles of buildings

Answer 36

Quoins

Question 37

Masonry of rough, undressed stones.

Answer 37

Rubble work

Question 38

When the roughest irregularities are knocked off.

Answer 38

Scabbled rubble

Question 39

When the stones in each course are rudely dressed to a nearly uniform height

Answer 39

Range rubble

Question 40

Uniform courses with stones uniform in size.

Answer 40

Coursed ashlar/ Ranged work

Question 41

Course laid with the horizontal joints uninterrupted but the width of the course and the length of the stones are varied to produce a wall with a less regular pattern.

Answer 41

Broken Range Ashlar

Question 42

The course retain their rectangular shape and are laid on horizontal beds but no effort is made to continue the horizontal beds in an uninterrupted manner.

Answer 42

random course ashlar

Question 43

Courses of stone face of which is jagged picked so as to present a rough surface

Answer 43

Rustic or Rock work

Question 44

when the heavier stones or areas of stone project from the normal face of the surrounding wall or of the joint themselves.

Answer 44

Rustification

Question 45

Structural units of clay or shale formed while plastic and subsequently fired.

Answer 45

Bricks

Question 46

Standard size of brick

Answer 46

3 3/4” x 2 1/4” x 8”

Question 47

Specially processed to give certain surface characteristics. Used for exposed masonry surfaces

Answer 47

Facing brick

Question 48

These have a smooth outer surface with a dull satin or high gloss finish. They are load bearing, fire resisting and impervious.

Answer 48

Glazed brick

Question 49

Ordinarily made from a mixture of flint clay and plastic clay used for the liming of furnaces, fireplaces and chimneys

Answer 49

Fire (refractory) brick

Question 50

Reinforcements for 100mm and 150mm CHB

Answer 50

3/8” diameter ver. Bars @ 600mm center | 3/8” diameter hor. Bars every third course

Question 51

Reinforcement bars for 8” walls

Answer 51

1/2” ver. bars at 24” on centers | 1/2” hor. Bars every third course

Question 52

Lightweight block made from fiber and cement

Answer 52

Durisol

Question 53

It is used fir lightweight, fire resistant interior partitions. Also called gypsum partition board

Answer 53

Plaster block