Masonry Flashcards Preview

Charlie Additional > Masonry > Flashcards

Flashcards in Masonry Deck (24)
Loading flashcards...
1

Rule for load bearing walls

Do NOT interlock courses of block

2

Planning saves...

Time, Labor, Materials

3

Tooling / Striking

“Tool” all mortar joints once mortar becomes “thumbprint” dry

4

Rule for a Closure Block

Leave a minimum of a 16 1/2” gap

5

Desirable properties of Mortar

Plasticity, water retentivity, strength, durability

6

4 types of mortar

Type ... M , S , N , O

7

CMU block referenced dimensions , actual dimensions

Ref. - 8”x8”x16”
Act. - 7 5/8” x 7 5/8” x 15 5/8”

8

Portland Cement requires using...

Lime

9

1 person can mix 1 cu yd per hour

Hand Mixing

10

Forms (hold concrete until it sets) must be _______?

Tight, rigid, strong

11

4 types of Foundations

Footer , Monolithic , Stem Wall , Floating Slab

12

Construction Joints are ___ and ___.

Horizontal Keyway, Vertical Keyway

13

Portland Cement shipping bags are...

94lbs , contain 1 cu ft. of loose material

14

4 types of Concrete

Reinforced, Prestressed, Precast, Lightweight

15

Concrete advantages

High compressional strength, low maintenance, economical, used universally, durable, strength can be determined

16

Concrete disadvantages

Low tensile strength, expands + contracts, shrinks when dry, heavy

17

Types of Portland Cement

Type I - Normal Portland
Type II - Modified Portland
Type III - High Early
Type IV - Low Heat
Type V - Sulfate Resistant

18

Most common Type of Portland Cement + how long to fully cure

Type I , 28 days

19

Most common type of Cement

Portland Cement

20

3 major components of concrete

Water , Aggregates , Portland Cement

21

What are Aggregates & what is Aggregates rule of thumb

Look at the fkn slides

22

Hydration

Chemical reaction when Portland Cement is mixed with water

23

Types of Cement

Portland Cement, White Portland, Air Entrained, Oil Well Cements

24

Portland Cement Barrels contain..

376lbs, equal to 4 bags