LADOTD Structural Concrete Inspection 2
Questions With Correct Answers
Whiat should be discussed at a prepour conference? - CORRECT ANSWER✔✔-
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equipment, procedures, material supply | | |
What should be checked on reinforcing steel during a prepour inspection? -
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CORRECT ANSWER✔✔-the distance between bars, the distance from bar ends to
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side forms, and the straightness of bars
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What should be considered when establishing the proper elevation of a
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transverse screed? - CORRECT ANSWER✔✔-the anticipated deflection under the
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screen, the finished grade, and the rail elevation
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What is the main purpose of the dry run of the transverse screed over the pour
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unit? - CORRECT ANSWER✔✔-to ensure that the screed will yield proper grade at
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all points
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Who must approve the PCC Job Mix Release prior to beginning a pour? -
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CORRECT ANSWER✔✔-the District Laboratory Engineer
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How long is a concrete plant certification valid? - CORRECT ANSWER✔✔-two
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years
, What must accompany a shipment of cement that is to be used in concrete for
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DOTD projects? - CORRECT ANSWER✔✔-Cement Certificate of Delivery
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Which areas must the contractor take aggregate samples from for job control and
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verification testing? - CORRECT ANSWER✔✔-the working face of the stockpiles,
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and the flow between the batch bin and the weighing hopper
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What items should be checked daily on a transit mixer? - CORRECT ANSWER✔✔-
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revolution counters, drum capacity and rotation speeds, and the water metering
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system
What is an acceptable procedure for filling a concrete bucket? - CORRECT
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ANSWER✔✔-place the bucket on a plywood platform | | | | | |
What is used to lubricate tubes for a concrete pumping operation? - CORRECT
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ANSWER✔✔-cement grout |
What is the order of operations for pouring a bridge deck? - CORRECT
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ANSWER✔✔-Mixing, placement, consolidation, finishing, straightening, tine | | | | | |
finishing, and curing | |
Who is responsible for determining the actual number of mixing speed
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revolutions to be performed at the plant? - CORRECT ANSWER✔✔-Contractor's
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Qualified Technician |
What 2 reasons to use an air entrainment admixture? - CORRECT ANSWER✔✔-it
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makes concrete more pourous & more workable?
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Questions With Correct Answers
Whiat should be discussed at a prepour conference? - CORRECT ANSWER✔✔-
| | | | | | | | | |
equipment, procedures, material supply | | |
What should be checked on reinforcing steel during a prepour inspection? -
| | | | | | | | | | | |
CORRECT ANSWER✔✔-the distance between bars, the distance from bar ends to
| | | | | | | | | | |
side forms, and the straightness of bars
| | | | | |
What should be considered when establishing the proper elevation of a
| | | | | | | | | | |
transverse screed? - CORRECT ANSWER✔✔-the anticipated deflection under the
| | | | | | | | |
screen, the finished grade, and the rail elevation
| | | | | | |
What is the main purpose of the dry run of the transverse screed over the pour
| | | | | | | | | | | | | | | |
unit? - CORRECT ANSWER✔✔-to ensure that the screed will yield proper grade at
| | | | | | | | | | | |
all points
| |
Who must approve the PCC Job Mix Release prior to beginning a pour? -
| | | | | | | | | | | | | |
CORRECT ANSWER✔✔-the District Laboratory Engineer
| | | |
How long is a concrete plant certification valid? - CORRECT ANSWER✔✔-two
| | | | | | | | | | |
years
, What must accompany a shipment of cement that is to be used in concrete for
| | | | | | | | | | | | | | |
DOTD projects? - CORRECT ANSWER✔✔-Cement Certificate of Delivery
| | | | | | |
Which areas must the contractor take aggregate samples from for job control and
| | | | | | | | | | | |
verification testing? - CORRECT ANSWER✔✔-the working face of the stockpiles,
| | | | | | | | | | |
and the flow between the batch bin and the weighing hopper
| | | | | | | | | |
What items should be checked daily on a transit mixer? - CORRECT ANSWER✔✔-
| | | | | | | | | | | |
revolution counters, drum capacity and rotation speeds, and the water metering
| | | | | | | | | | |
system
What is an acceptable procedure for filling a concrete bucket? - CORRECT
| | | | | | | | | | | |
ANSWER✔✔-place the bucket on a plywood platform | | | | | |
What is used to lubricate tubes for a concrete pumping operation? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-cement grout |
What is the order of operations for pouring a bridge deck? - CORRECT
| | | | | | | | | | | | |
ANSWER✔✔-Mixing, placement, consolidation, finishing, straightening, tine | | | | | |
finishing, and curing | |
Who is responsible for determining the actual number of mixing speed
| | | | | | | | | | |
revolutions to be performed at the plant? - CORRECT ANSWER✔✔-Contractor's
| | | | | | | | | |
Qualified Technician |
What 2 reasons to use an air entrainment admixture? - CORRECT ANSWER✔✔-it
| | | | | | | | | | | |
makes concrete more pourous & more workable?
| | | | | |
