G9

Question 1

How are cored slabs connected to the beams that support them

Answer 1

Topping slab on top with reinforcing steel to hold panels in place

Question 2

What type of grout is used under pre-cast columns

Answer 2

Expansive grout

Question 3

How are topping slabs re inforced

Answer 3

Steel reinforcing in the slab

Question 4

How are pre cast columns set on their bases

Answer 4

Anchor plates

Question 5

What is a curtain wall

Answer 5

Carries no weight other than their own. Used to close in the outside of the building envelope

Question 6

What are vaults used for

Answer 6

For making electrical or mechanical connections

Question 7

How are pre-cast stairs built

Answer 7

With the formwork upside down with forked surfaces providing the finish to the treads and the risers

Question 8

What is acrylic caulking used for

Answer 8

Acrylic based caulking that cures by evaporation of the solvent and can be used in wood, glass, concrete, ceramic tile and aluminum.

Can be cleaned up with water

Question 9

What is polysulfide based caulking (Rubber base)

Answer 9

Used to seal pre cast tilt up panels, pre cast facings and curtain walls. General building caulking.

Surfaces must be clean and dust free

Question 10

Butyl based caulking

Answer 10

Where minimum shrinkage. Around windows etc