MASONRY

Question 1

types of cement used in mortar

Answer 1

type I, type II, type III

Question 2

how long before having to discard mortar

Answer 2

2.5 hours

Question 3

water table brick

Answer 3

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.

Question 4

coping brick

Answer 4

used to protect the wall underneath

Question 5

jamb bricks

Answer 5

bricks tacked vertically along the opening

Question 6

sill bricks

Answer 6

bricks going horizontally along the opening

Question 7

difference between grout and concrete

Answer 7

grout is more fluid and pourable

Question 8

SW grade brick (severe weathering)

Answer 8

used for underground applications and for any climate. tougher brick

Question 9

MW grade brick (moderate weathering)

Answer 9

weather resistant and exterior only in warm areas

Question 10

NW grade brick (negligible weathering)

Answer 10

interior use only

Question 11

headers (bricks)

Answer 11

rotated 90 degrees to tie two wythes of brick together

Question 12

centering

Answer 12

temporary structure erected to support an arch while being constructed

Question 13

quoins

Answer 13

corner stones

Question 14

stone masonry vs stone cladding

Answer 14

masonry is stacked and cladding is attached to building with anchors, skin

Question 15

ashlar vs rubble

Answer 15

ashlar: rectangular
rubble: non rectangular

Question 16

lewis pins

Answer 16

lift stones

Question 17

starp anchors

Answer 17

attach the mortar to the wall between courses of stone

Question 18

concrete block size (common in US)

Answer 18

8x8x16

Question 19

how do we reinforce concrete block walls horizontally

Answer 19

lay small diameter welded grid steel every few courses for extra load bearing resistance to cracking and sesimic stain

Question 20

how do we supply vertical reinforcing in concrete masonry

Answer 20

every three blocks, we set rebar and fill the cavities containing the rebar with grout

Question 21

how do we span over a window or door in concrete masonry

Answer 21

steel lintel, reinforcer block lintel, precast concrete linter

Question 22

efforescence

Answer 22

white, crystalline deposit of water soluble salts on the surface of the brick masonry