Ch.8 Flashcards
________ is one of the oldest and simplest building materials , it’s used date back thousands of years?
Masonry
The primary benefit of masonry components is their durability and inherent resistance to?
Weather
Fire
Insects
Compressive strength of brick ?
2000-20,000 psi
Compressive strength of Granite ?
15,600 to 30,800psi
Compressive strength of limestone ?
2600 to 21,000psi
Compressive strength of sandstone?
4000 to 28000 psi
____________ consists of rock pieces that have been removed from a quarry and cut to the size and shape desired?
Stone masonry
Bricks are produced from a variety of locally available _____ and ______?
Clays and shales
For most brick sizes , three courses (horizontal layers) or brick plus the intervening mortar joints equals a height of ____ inches?
8 inches
Bricks are fired in a kiln at a temperature as high as _______?
2400 degrees
Brick firing process takes ___ to ___ hours?
40 to 150 hours
Hollow concrete blocks are produced in a number of sizes and shapes , the most common is the __x__x__ inch block?
8x8x16 inch block
Fired clay tile known as _____________ was once popular for decorative effects and may still be found in older buildings ?
Structural terra cotta
Most mortar is produced from a mixture of ___________, ___________, ________ and water?
Portland cement
Hydrated lime
Sand
Walls constructed with fire rated concrete masonry units or bricks can have a fire resistance rating of __ to __ hours or more?
2 to 4 hours
Single vertical column of masonry units in a wall, usually brick or concrete block?
Wythe
The simplest brick wall consists of a single _______?
Wythe
Non reinforced masonry walls are usually limited to a maximum height of ____ stories?
6 stories
Strategic brick and block placement is used for __________ and appearance?
Strength
A_______ has bricks placed end to end ?
Stretcher course
A __________ has bricks placed vertically on end?
Soldier course
A _______ has bricks placed with the end facing out?
Header course
Horizontal layer of individual masonry units ?
Course
Load bearing masonry walls may be constructed to a height of ____ stories or more with a wall thickness of only 12 inches when using reinforced masonry?
10 stories
A __________ wall is an exterior brick wall constructed with a vertical cavity between the exterior Wythe and the interior Wythe , prevents water seepage through mortar joints ?
Cavity wall
In many applications such as residential and small commercial buildings , wood joists or beams simply rest on the masonry wall in an indent ion known as a _____________?
Beam pocket
The end of a wood joist or beam will be cut at a slight angle known as a _____________?
Fire cut
Masonry over an opening is supported by the use of a _______, _______ or _______ ?
Lintel
Arch
Corbel
___________ are the most common method of supporting loads over openings in masonry walls, followed by arches ?
Lintels
_________ is used to improve the aesthetics of an arch?
Corbelling
A ________ is an extension of masonry or steel wall That projects above a roof 1 foot or more?
Parapet
Concealed space near the eave of a building , usually overhanging the area adjacent to exterior walls?
Cornice
Fascia added to some buildings with flat roofs to create the appearance of a mansard roof?
Facade
The tie rod usually has a ___________ to adjust the tension in the rod?
Turnbuckle
_____________ can take several forms , and are usually easily visible on the outside of a building , some can be in the shape of a star?
Bearing plates
