BC Chapter 8

Question 1

Draw backs to masonry construction:

(2)

p. 218

Answer 1

• Long-term deterioration of mortar joints.
• Labor-intensiveness of laying individual units by hand.

Question 2

The most common size of a hollow concrete block:

p. 220

Answer 2

8 x 8 x 16

Question 3

Mortar is available in _____ basic types with compressive strengths ranging from _____psi to ____psi.

p. 221

Answer 3

5

75

2500

Question 4

A well conatructed masonry wall can have fire-resitance rating of two to four hours and is usually the last structural component to faill in wood-joisted buildings.

p.221

Answer 4

True

Question 5

Masonry can be used for non-loadbearing _______ or ___________.

p. 223

Answer 5

Curtain walls

Partitions

Question 6

Nonreinforced masonry walls are usually limited to a maximum height of _____ stories.

p. 224

Answer 6

6 Stories

Question 7

A ___________ course has brinks placed end-to-end.

p. 225

Answer 7

Stretcher

Question 8

A __________ solider course has bricks placed vertically on end.

p. 225

Answer 8

Soldier Course

Question 9

A _________ course has bricks placed with the end facing out.

p. 225

Answer 9

Header Course

Question 10

A reinforced loadbearing masonry wall can be constrcuted to a height of ______ stories or more with a thickness of only _______ inches.

p. 226

Answer 10

10 stories

12 inches

Question 11

Wall construction system that includes one wythe of concrete blocks with a brick wythe attached to the outside.

p. 227

Answer 11

Concrete Block - Brick Faced (CBBF)

Question 12

A _________ wall is an exterior brick wall constructed with a vertical space between the exterior wythe and interior wythe. This space prevents water seepage through mortar joints into the building and increases thermal insulating value of the wall.

p. 226

Answer 12

Cavity Wall

Question 13

Structure projecting from a wall designed to receive lateral pressure at a particular point.

p. 227

Answer 13

Buttress

Question 14

Rectangular masonry pillar that extends from the face of a wall to provie additional support to the wall.

p. 226

Answer 14

Pliaster

Question 15

In masonry walls wood joists or means simply rest on the wall in an indentation called a:

p. 227

Answer 15

Beam Pocket

Question 16

Supporting the weight over masonry openings poses a design problem because:

p. 228

Answer 16

Mortar joints provide little tensile stength.

Question 17

Most common support for masonry over an opening; usually a steel beam or reinforced masonry.

p. 228

Answer 17

Lintel

Question 18

Collapse zone is typically at least ______ times the height of the building.

p. 230

Answer 18

1.5 times

Question 19

The strongest points in a masonry structure:

p.231

Answer 19

• Corners
• Stairwells
• Elevator shafts