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Concrete Placement Questions - All Grades

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None Concrete Placement
What would you need to add if you were required to build a suspended set of concrete stairs instead of earth supported?
  1. Additional rebar
  2. Additional concrete
  3. Additional large rocks
  4. Additonal water to the mix
None Concrete Placement
Concrete strength is measured in                       .
  1. Pounds per inch
  2. Pounds per square inch
  3. Pounds per yard
  4. Pounds per meter
None Concrete Placement
What is the name given to a product that is added to concrete to resist fungus growth, or slow setting time?
  1. Concrete addition
  2. Aggregate
  3. Admixture
  4. Cement resistor
None Concrete Placement
What is done to concrete to lengthen the curing time?
  1. Place concrete quickly with less water
  2. Add more water during concrete placement
  3. Add heaters after placing
  4. Keep concrete hydrated after placing
None Concrete Placement
At what point are you able to start finish trowelling the concrete?
  1. Once the bleed water has evaporated
  2. After floating the concrete
  3. Before florating the concrete
  4. After the screeding is finished.
None Concrete Placement
After vibrating, what is the next step in the concrete finishing process?
  1. Screeding
  2. Floating
  3. Brooming
  4. Troweling
None Concrete Placement
What type of admixture is added to the concrete mix when placing concrete in cold weather?
  1. Accelerator
  2. Decelerator
  3. Liqiufier
  4. Moisture retarder
None Concrete Placement
What is a consequence of concrete curing to quickly?
  1. Reduced strength
  2. Reduced workability
  3. Reduced longevity
  4. All of the above
None Concrete Placement
The term "architectural concrete" refers to what?
  1. Unexposed concrete
  2. Architecturally designed concrete
  3. Smooth exposed finish
  4. Strong durable finish
None Concrete Placement
When placing concrete over already placed concrete that is not cured what must be done to ensure full strength is achieved and cold joints are avoided?
  1. Add more water
  2. Add an admixture
  3. Vibrate when placing
  4. You can't place concrete like this
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