MASONRY Flashcards
types of cement used in mortar
type I, type II, type III
how long before having to discard mortar
2.5 hours
water table brick
A water table is a projection of lower masonry on the outside of a wall slightly above the ground.
It is both a functional and architectural feature that consists of a projection that deflects water running down the face of a building away from lower courses or the foundation.
coping brick
used to protect the wall underneath
jamb bricks
bricks tacked vertically along the opening
sill bricks
bricks going horizontally along the opening
difference between grout and concrete
grout is more fluid and pourable
SW grade brick (severe weathering)
used for underground applications and for any climate. tougher brick
MW grade brick (moderate weathering)
weather resistant and exterior only in warm areas
NW grade brick (negligible weathering)
interior use only
headers (bricks)
rotated 90 degrees to tie two wythes of brick together
centering
temporary structure erected to support an arch while being constructed
quoins
corner stones
stone masonry vs stone cladding
masonry is stacked and cladding is attached to building with anchors, skin
ashlar vs rubble
ashlar: rectangular
rubble: non rectangular
lewis pins
lift stones
starp anchors
attach the mortar to the wall between courses of stone
concrete block size (common in US)
8x8x16
how do we reinforce concrete block walls horizontally
lay small diameter welded grid steel every few courses for extra load bearing resistance to cracking and sesimic stain
how do we supply vertical reinforcing in concrete masonry
every three blocks, we set rebar and fill the cavities containing the rebar with grout
how do we span over a window or door in concrete masonry
steel lintel, reinforcer block lintel, precast concrete linter
efforescence
white, crystalline deposit of water soluble salts on the surface of the brick masonry
