G2

Question 1

Footing forms are built with usually what size lumber?

Answer 1

2X6, 2X10, and 1X4 cleats

Question 2

what are bulkheads used for?

Answer 2

creating a vertical or horizontal (usually vertical) end to formwork

Question 3

what are two uses of chamfer strip?

Answer 3

bevel corners of the formwork to give the concrete a nice finished edge. And a levelling strip for troweling

Question 4

witch may be more permanent than the other, scabs or cleats?

Answer 4

Cleats

Question 5

what are dowels used for?

Answer 5

connects two separate concrete members together

Question 6

how are threaded dowels installed?

Answer 6

drilled hole and a threaded insert is placed and the dowel can be threaded in

Question 7

what is the purpose of an isolation joint?

Answer 7

to isolate on concrete member from the other

Question 8

What are isolation joints usually used for?

Answer 8

Columns and slabs

Question 9

how is an isolation joint made?

Answer 9

using ash fault impregnated fibreboard

Question 10

whats the difference between a key and a keyway?

Answer 10

a key sticks out and key way is a grove that sticks in

Question 11

what is a ledger?

Answer 11

a horizontal member that a slab form sits on at the wall, like a ledge

Question 12

what is a rustication strip?

Answer 12

a strip of wood the creates a joint. similar too a keyway

Question 13

what transfers the load between the sheathing and the ties?

Answer 13

walers

Question 14

how often are support blocks used if needed under walers?

Answer 14

every 1200mm

Question 15

what is placed between a construction joint that is subject to hydrostatic pressure?

Answer 15

a water stop

Question 16

what is in the middle of a water stop?

Answer 16

a bulb to resist the shear faces of two concrete members

Question 17

what is the dimensions of wedges?

Answer 17

3 1/2 x 12 inches

Question 18

what is used to keep a form plumb?

Answer 18

braces

Question 19

Cleats for footing forms are usually placed at?

Answer 19

24 or 36 inches on certer

Question 20

what is a factor when placing clamps on a column form?

Answer 20

clamps must be closer together at the bottom

Question 21

what is it called when the concrete is cured with steam in precast concrete?

Answer 21

autoclaving

Question 22

what should happen to the rate of placement if the temperature falls?

Answer 22

the rate of placement should be reduced

Question 23

the pressure exerted by the fresh concrete is dependant on what?

Answer 23

the rate of placement and the rate concrete sets

Question 24

what lumber type is used for forming?

Answer 24

2 and better

Question 25

what type of plywood is used for forming?

Answer 25

Douglas Fir Plywood (G1S)

Question 26

Ply grain should run in witch direction?

Answer 26

opposite too the studs

Question 27

what form material is used for precast?

Answer 27

Metal

Question 28

Quick strip ties have what?

Answer 28

holes on the ends for waler bar

Question 29

strap ties have what?

Answer 29

holes for nails

Question 30

what is a reglet used for?

Answer 30

a continuous grove that have counter flashing caulked in them

Question 31

How deep are reglets?

Answer 31

25mm

Question 32

what are form liners used for?

Answer 32

used to impart a texture on the surface

Question 33

for exposed aggregates, what aggregates are used?

Answer 33

Gap graded aggregate, they are coarse and 3/8 inches in diameter. the rest is sand

Question 34

what is sprayed on the surface to produce exposed aggregates?

Answer 34

A retarder to keep the surface from curing

Question 35

what diameter is pencil rod?

Answer 35

1/4 inch

Question 36

what seals the form tie in form liners?

Answer 36

Rubber washer

Question 37

what are form liners made from?

Answer 37

foam rubber and styrofome

Question 38

what is a give and take strip used for?

Answer 38

to isolated one concrete member from the other

Question 39

whats the difference between isolation joint and expansion joint

Answer 39

expansion joints allow the concrete member to expand and contract where the isolation joint allows it to settle and move around

Question 40

the usual spacing for control joints are no more then?

Answer 40

15m

Question 41

control joints must be how for down into the slab?

Answer 41

at least 1/4 the thickness of the slab