PCI Quality Control Technician Level 1 EXAM
comprehensive questions and verified accurate
solution (detailed & elaborated) 2026 TEST!!
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Terms in this set (23)
You will need early strength from a ASTM C150 Type III cement is used when early
concrete mixture design in order to strength is desired. It is ground finer than the
strip the product as soon as other cements and will react with water faster.
possible. What type of cement
should you consider and what
characteristics make it a good
choice?
Fine and coarse aggregates should Unless specifically stated otherwise, they should
generally conform to which both conform to ASTM C33
standard?
How are fine and coarse Fine and coarse aggregates are generally
aggregates defined by the standard defined by ASTM C33 in relationship to their
and how does a plant check these gradation or particle size, distribution and
criteria fineness for sand. I plant reviews material by
testing for and computing the gradation.
Non-drinkable water should not be False - Water suitable for making concrete does
used to make concrete - ture or not need to be fit for drinking, but non-potable
False? Explain water must meet the chemical limits given in table
C3.1.6 of PCI manuals MNL-116 and 117
, As a general statement, what are In a general sense, any item added to concrete
admixtures? other than cement, aggregates, and water is an
admixture
Chorides are detrimental to precast B: Chlorides promote corrosion of embedments,
concrete because? reinforcing, and prestressing strand.
Which of the following is not a A: Reduction of 28 day strength. Early strength
benefit of using retarders as reduction is expected, but strength at later
admixtures? stages is not affected when using retarders
a. Reduction of 28 day strength
b. Offset the adverse effects of hot
weather (ambient temp that
exceeds 85 F) by delaying the
setting of concrete and maintaining
the workability for a longer period
of time.
c Slow the rate of temp rise in mass
concrete and lower the peak temp
thereby reducing thermal cracking.
d. Delay initial set for special
finishes such as exposed aggregate.
Pozzolans are beneficial in C: They react with calcium hydroxide to provide
concrete because: cementitious benefits
a. They provide for water disposal
b. They make the mixture less sticky
for finishing
c. They react with calcium
hydroxide to provide cementitious
benefits
d. They increase early strength
development of the concrete
mixture
comprehensive questions and verified accurate
solution (detailed & elaborated) 2026 TEST!!
Save
Terms in this set (23)
You will need early strength from a ASTM C150 Type III cement is used when early
concrete mixture design in order to strength is desired. It is ground finer than the
strip the product as soon as other cements and will react with water faster.
possible. What type of cement
should you consider and what
characteristics make it a good
choice?
Fine and coarse aggregates should Unless specifically stated otherwise, they should
generally conform to which both conform to ASTM C33
standard?
How are fine and coarse Fine and coarse aggregates are generally
aggregates defined by the standard defined by ASTM C33 in relationship to their
and how does a plant check these gradation or particle size, distribution and
criteria fineness for sand. I plant reviews material by
testing for and computing the gradation.
Non-drinkable water should not be False - Water suitable for making concrete does
used to make concrete - ture or not need to be fit for drinking, but non-potable
False? Explain water must meet the chemical limits given in table
C3.1.6 of PCI manuals MNL-116 and 117
, As a general statement, what are In a general sense, any item added to concrete
admixtures? other than cement, aggregates, and water is an
admixture
Chorides are detrimental to precast B: Chlorides promote corrosion of embedments,
concrete because? reinforcing, and prestressing strand.
Which of the following is not a A: Reduction of 28 day strength. Early strength
benefit of using retarders as reduction is expected, but strength at later
admixtures? stages is not affected when using retarders
a. Reduction of 28 day strength
b. Offset the adverse effects of hot
weather (ambient temp that
exceeds 85 F) by delaying the
setting of concrete and maintaining
the workability for a longer period
of time.
c Slow the rate of temp rise in mass
concrete and lower the peak temp
thereby reducing thermal cracking.
d. Delay initial set for special
finishes such as exposed aggregate.
Pozzolans are beneficial in C: They react with calcium hydroxide to provide
concrete because: cementitious benefits
a. They provide for water disposal
b. They make the mixture less sticky
for finishing
c. They react with calcium
hydroxide to provide cementitious
benefits
d. They increase early strength
development of the concrete
mixture
