BC chapter 8

Question 1

most common type of stone used on construction

Answer 1

• limestone
• sandstone and brownstone
• granite
• marble
• slate

Question 2

concrete block

Answer 2

most common is the nominal 8x8x16 block

Question 3

mortor

Answer 3

bond individual masonry units into a solid mass ….available in five basic types with compressive strengths ranging from 75 psi to 2500 psi

Question 4

masonry units are laid side by side in a horizontal layer known as course

Answer 4

• stretcher course has bricks placed end-to -end
• soldier course has bricks placed vertically on end
• header course has bricks placed with the end facing out.

Question 5

lintel

Answer 5

support for masonry over an opening …usually made of steel angles or other rolled shapes

Question 6

Corbel

Answer 6

bracket or ledge made of stone, wood , brick or other building material projecting from the face of a wall or column used to support a beam. cornice or arch.

Question 7

Corbelling

Answer 7

use of a corbel to provide additional support for an arch

Question 8

parapet

Answer 8

an extension of a masonry or steel wall that projects above a roof 1 foot or more……parapets usually do not have lateral support

Question 9

collapse control zone

Answer 9

collapse zones are typically at least 1.5 times the height of the building all around the building perimeter …..the safest location for apparatus by the buildings corners