MASONRY

Question 0

What are the three recommended tooling types for mortar joints in brick?

Answer 0

Concave, flush, and vee

Question 1

What does tooling a brick joint do?

Answer 1

Decorative effect and increases water-tightness of joint by compressing near the edge.

Question 2

What is the maximum allowable length two with ratio for a single–wythe while?

Answer 2

20:1

Question 3

What is a brick cavity wall?

Answer 3

To wythes of brick separated by an airspace

Question 4

What is a reinforced grouted wall and how is it different from a cavity wall?

Answer 4

It is the same as a cavity wall that filled with grout… Able to carry heavier loads

Question 5

Describe a brick veneer wall.

Answer 5

A single wythe of brick attached to some other kind of construction

Question 6

What is efflorescence?

Answer 6

White deposits of water soluble salts on the service of brick… Not harmful

Question 7

How often do you need a weep pole?

Answer 7

Every 24”

Question 8

What is the process to fix mortar that is falling out?

Answer 8

Tuck point or re-point

Question 9

How do you separate solid versus hollow CMU’s?

Answer 9

Solid is more than 75% solid and hollow is less than that

Question 10

With the CMU what is equivalent thickness?

Answer 10

Pretend there are no holes and use the same amount of material

Question 11

What is the equivalent thickness of an 8 inch thick concrete block that is 60% solids?

Answer 11

Actual thickness is 7 5/8. Equivalent thickness is then:

7 5/8” x 0.6 = 4.58”

Question 12

Gypsum block

Answer 12

Non really used anymore… Blocks of solid gypsum for interior walls

Question 13

Terra cotta is for…

Answer 13

Cladding an decoration

Question 14

Tell me about the difference between rubble, squared stone, and ashlar

Answer 14

Rubble: with little or no shaping

Squared stone: let me shaped edges resulting in vertical joints

Ashlar: highly shaped, cut stone

Question 15

Tell me about the difference between range masonry, broken range masonry, and random masonry

Answer 15

Range masonry is arranged in uniform courses, broken range has courses for short distances, and random is devoid of coursing

Question 16

What is a honed finish?

Answer 16

Satin smooth with little or no gloss

Question 17

What is the sandblasted finish?

Answer 17

Matt textured surface, no glass, recommended for exterior

Question 18

What is a shot – ground finish for granite?

Answer 18

With circular markings are trails with no regular pattern

Question 19

What is a chat – sawed finish for limestone? What is a shot - sawed finish?

Answer 19

Chat : Course, pebbled surface

Shot : course, and even finish from a pebbled to a rippled with parallel grooves

Question 20

What is a plucked limestone finish?

Answer 20

Rough texture produced by rough planing the surface

Question 21

What is the difference between split face and rockface limestone?

Answer 21

Both have rough, uneven, concave – convex finishes… In rockface the stone has been dressed by machine or hand to produce bold convex projections