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Concrete Flatwork Tech and Flatwork Finisher (3rd Ed.) with complete verified solutions 2025
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Concrete Flatwork Tech and Flatwork Finisher (3rd Ed.) with complete verified solutions 2025
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Concrete Flatwork Tech andFlatwork Finisher (3rd Ed.) with
complete verified solutions
2025(already passed)
finishing foreman - answer (Ch. 1, #1) It is important that the
_______ _______ read and understand project specifications
100 - answer (Ch. 1, #2) If the crew can place and finish 100yd^3
(m^3) of concrete per hour, the producer's rate should be about ____
yd^3(m^3) per hour.
False (sold by volume) - answer (Ch 1, #3) True or False: Concrete
is sold by the ton.
pump, place, and finish - answer (Ch. 1, #4) Delays in discharging
concrete trucks can result in the concrete being hard to:
A) 407.41; B) 297 - answer (Ch. 1, #5)
A) Inch/Pound: For a concrete floor slab that is 6 in. thick, 200ft
long, and 100 ft wide you should order ____ yd^3 of concrete,
assuming a 10% waste factor.
B) Metric: For a concrete floor slab that is 150 mm thick, 60 m long,
and 30 m wide you should order ____ m^3 of concrete, assuming a
10% waste factor.
as one truck is finishing, the other is ready to unload concrete -
answer (Ch. 1, #6) When there is room for two concrete trucks
ready to discharge into a pump hopper, placement is faster because:
,1.5 - answer (Ch. 1, #7) Concrete from a ready mix truck must be
completely discharged within ____ hours after water has been added
at the plant.
batch ticket - answer (Ch. 1, #8) You can tell when water was
added to the concrete truck by looking at the:
15 minutes - answer (Ch. 1, #9) When concrete for a slab
placement will be discharged from the truck chute, truck arrivals
should usually be spaced about:
True - answer (Ch. 1, #10) True or False: When finishers get behind
because the concrete is setting faster than expected and the
placing crew is also shorthanded, one solution is slowing the
concrete delivery rate to match worker output.
False (Standard is to order 10% to 15% *more* than measured
volume for small orders and 5 to 10% more than measured volume
for large orders to account for subgrade settlement, uneven
subgrade, spillage, and waste.) - answer (Ch. 1, #11) True or False:
In deciding how much concrete to order for a floor placement, you
should calculate the number of cubic yards (cubic meters) needed to
fill the forms, then order two or three cubic yards (cubic meters)
less so you don't waste concrete that is not needed.
preconstruction conference - answer (Ch. 1, #12) The question
"What finisher or finishers can request the addition of water to the
concrete truck on site?" Should be answered at the _________
__________.
True - answer (Ch. 2, #1) True or False: Concrete made with
portland cement will set and harden while underwater.
Type I - answer (Ch. 2, #2) If a concrete slab on ground won't be
exposed to sulfates, the cement used is most likely to be:
, portland - answer (Ch. 2, #3) Fly ash may be added to concrete
from a fly ash silo at the batch plant or from a silo containing a
_______ cement.
0.75 to 1.5 in. (19 to 38 mm.) - answer (Ch. 2, #4) Most concrete
used in slabs on ground has course aggregate with a maximum size
of:
True - answer (Ch. 2, #5) True or False: Sand for concrete used in
slabs on ground is easier to finish when it has close to the largest
allowable amount of material passing the No. 50 and No. 100 sieves.
False (Too many small particles will *increase* the amount of water
needed to make the concrete workable.) - answer (Ch. 2, #6) True
or False: Increasing the amount of sand in a concrete usually
decreases the amount of water needed to make the concrete
workable.
an air-entraining agent - answer (Ch. 2, #7) All concrete that will
be subject to freezing when moist or be exposed to deicing salts
should contain:
water-cement ratio - answer (Ch. 2, #8) Strength of normal weight
concrete depends mainly on:
True - answer (Ch. 2, #9) True or False: Oversanded concrete
mixtures are likely to produce floors with poor wear resistance and
excessive shrinkage.
Use as much coarse aggregate as possible, as little mixing water as
possible, and use aggregates with low shrinkage. - answer (Ch. 2,
#10) To minimize shrinkage and reduce cracking and curling:
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