Quiz 2 Flashcards
What are the predominate types of masonry?
Concrete Masonry Units (CMU), Clay Masonry (Brick), and Stone
Two types of CMU
Split Face and Ground Face Block
Size of a Standard CMU Block?
8x8x16
How many SQ is a standard 8x8x16?
.89 SF
How many CMU is in 1 SF?
1.125 Blocks
How many CMU is in 100 SF?
112.5 SF
How much waste for CMU?
5%
Why is there so much waste in CMU?
Cutting of the blocks
What is mortar?
The material used to stick the blocks together
What’s the size of a typical mortar joint?
3/8”
What is the waste of mortar?
25%
How much mortar is used per 100 sf of CMU Wall?
3.2 CF
When is masonry reinforcement used?
When It’s used strucurally
How much waste for rebar?
10%
How much waste for Horizontal joint reinforcement?
10%
what is used to fill cores in CMU?
Grout
what is the unit and waste for grout?
CF and 5%
How do you take off Brick?
Determine wall height, Multiply by Wall Length, and subtract openings greater than 10 SF
What is the unit for Brick Veneer?
Square Foot
Where are bond beams placed?
Every floor level and top of the wall
T or F: Bond beams are usually horizontally reinforced and fully grouted.
True
What are the units and waste for Bond beams?
LF and 5% waste
How many SQ is in 100 SF?
1
What are placed at an opening in a CMU Wall?
Lintels
Units and waste for Lintels?
LF, 5%
How many brick per SF?
6.75
What is the unit for scaffolding?
SF
what is the size of a standard brick?
2 2/3 high 8 in long, 4 in wide
Waste for brick?
5%
Unit for Brick?
M
How many brick per M?
1000
How much mortar per 100 sf of brick wall?
7.2 CF
How much waste for brick mortar?
25%
What is the spacing for brick ties?
16” on center vertical and horizontal
how many ties per sf?
1.77
Units for brick ties?
Each
unit for through wall flashing?
Linear feet
unit for brick insulation?
Square feet
Take off unit for take off for metal?
lf, sf, ton
what is the depth (flange to flange) and weight of a 12x30 steel beam?
12” and 30 lbs per foot
what do you do if you price steel by the job?
convert it into tons
lbs per ton?
2,000 lbs
what is the depth (in inches), Joist series, and designation within series (the higher the number, the heavier the joist) for a designation 12K4?
12” depth, K joist series, 4 designation
What is the unit for lumber?
Board Measure (MBF)