Building Technology- Concrete

The primary purpose of a slump test is to meet which of the following concrete quality requirements?

• Durability

• Surface Quality

• Strength

• Workability

What type of Portland cement is employed in the construction of massive concrete structures such as gravity dams?

• Type I: Normal    

• Type II: Moderate

• Type III: High Early Strength

• Type IV: Low Heat

• Type V: Sulfate Resistant

Concrete left in its natural state after formwork is removed, especially when the concrete surface reflects the texture, joints, and fasteners of a board form.

• Architectural concrete

• Beton Brut

• Dry-shake finish

• Exposed aggregate finish

Concrete that is poured in its final location

• Cast-in-place

• Precast

• Slab on Grade

• Slab

With regards to concrete proportioning, which of the following characteristics is of utmost concern if mass concrete is produced?

• Consistency

• Durability

• Heat Generation

• Placeability

• Strength

Stirrups are placed in concrete beam reinforcement to resist

• Compression

• Torsion

• Tension

• Moment

• Shear

A vertical loop of steel bar used to reinforce a concrete beam against diagonal tension forces.

• Dowel

• Stirrup

• Tie

• Rough-in

A steel reinforcing bar that projects from a foundation to tie it to a column or wall, or from section of a concrete slab or wall to another.

• Dowel

• Stirrup

• Tie

• Rough in

What is the purpose of concrete curing?

• To avoid concrete segregation

• To ensure consolidation of concrete

• To allow a time period for removing formworks

• To slow the loss of moisture in concrete

• To speed up drying of concrete

A stiff straightedge of wood or metal that establishes the level the surface to which concrete will be placed.

• Darby

• Screed

• Trowel

• Bull Float