Chapter 10 - Online Quiz Flashcards
Bricks tend to expand after installation, whereas concrete masonry units tend to shrink. T/F
True
It is important to make all reinforcing bars and joints fully continuous through expansion joints and control joints in order to maintain the structural integrity of the wall. T/F
False
The most common form of construction in american downtowns in the 19th century was
“ordinary” construction
Flashings used in masonry cavity wall construction can be made of each of the following materials except
ashlar
Chemical antifreeze admixtures should be used in mortar when outdoor temperatures are below freezing. T/F
False
Which doesn’t belong with the others?
mortar joint
A composite masonry wall is so named because it features
an outer wythe of stone or brick and backup wythe of CMU’s
The following spanning system may be supported on masonry bearing walls
all of the above
Efflorescence that appears on the surface of a wall of brick, stone, or concrete masonry can be caused by
water-soluble salts present in the mortar, brick, stone, or CMU
Efflorescence on brickwork usually indicates serious problems in the wall. T/F
False
Internal flashing should be located in masonry walls
below copings and sills
Concrete masonry wall is to control joint as brick masonry wall is to
expansion joint
Where an internal flashing meets the exterior surface of a masonry wall
all of the above
Brick masonry has no reliable tensile strength. T/F
True
The effect of posttensioning a concrete masonry wall is to put the wall in
vertical compression
