The primary benefit of masonry components is ................ and inherent resistance
to ........, ..............., and............. ** Answ** durability
weather, fire, and insects
Drawbacks to masonry construction include.......... and ........... ** Answ** longterm
deterioration of mortar joints, and it is labor intensive
Masonry units have no significant ........... strength, used to support .......... loads, and must limit
applied stresses to account for ........ and provide ............. ** Answ** tensile, compressive,
weaker mortar joints, factor of safety
Most common types of stone used in construction: ** Answ** limestone, sandstone and
brownstone, granite, marble, slate
..... are produced from a variety of locally available clays and shales. ** Answ** Bricks
The hardness of brick is dependent on ..... ** Answ** the materials used in its composition
For most brick sizes, ..... of brick plus the intervening mortar joints equal a height of 8 inches.
** Answ** three courses
Bricks are fired in a kiln during which they are subjected to temps as high as ...... The process
takes ...... hours ** Answ** 2400*F
40-150 hours
The most commonly used concrete block is the ..... ** Answ** hollow concrete block,
8x8x16" block most common
........... and ........... were once widely used for the construction of interior partitions. ......... was
once popular for decorative. ** Answ** clay tile blocks and gypsum blocks
structural terra cota
........ is still frequently used where a smooth, easily cleaned surface is desired. .............. is
popular for both interior/exterior partitions, and fill in windows in existing buildings. **
Answ** Structural glazed tile, glass block
Functions of mortar: ** Answ** bond individual units into solid mass, cushion rough
surfaces, a seal between units, important in final appearance
The weakest part of a masonry wall is ...... ** Answ** the mortar joints
, Mortar is available in five types with strengths varying from ...... to ........ ** Answ** 75 psi
to 2500 psi
Most mortar is produced from a mixture of ...... ** Answ** portland cement, hydrated lime,
sand and water
....... functions as the bond agent in mortar. ** Answ** portland cement
FF should be aware that use of master streams can weaken mortar, by ....... or ...... ** Answ**
pressure of the stream or
flushing effect of the water
......... mortar is only found in historic buildings and must be repaired with ............ ** Answ**
sand-lime, sand-lime
The fire resistance of a masonry wall depends on ...... and ...... ** Answ** type of masonry
used
thickness of the wall
Masonry is most relevant to firefighters when it is used in ...... ** Answ** walls
The code classification of buildings with masonry components depends on the fire resistance
of ........., ..........., and .......... that span the exterior load-bearing walls and interior columns, and
transfer the live loads to the building to those walls and columns. ** Answ** joists, beams
and rafters
The traditional and most basic masonry structure includes exterior............... that support
the ......... and is known as ............or also known as ......... ** Answ** load bearing masonry
walls, interior wood floors and roofs constructed of wood joists and rafters, ordinary
construction, masonry wood-joisted
The weight that a wall can support will depend on .......... and ............. ** Answ** width of
wall, whether or not reinforced
In masonry construction, ..... and ......, are limited to non-bearing partition walls. Stone is often
used as ...... ** Answ** gypsum block, light weight concrete block
architectural veneer
Most commonly encountered load bearing masonry walls are constructed from : ** Answ**
brick, concrete block, or combination
In an ordinary non reinforced load bearing wall, the strength and stability of the wall are derived
from ...... and ....... ** Answ** the weight of the masonry and