Terms in this set (141)
According to the verify confomance to a specified
CSA standard, why is requirement for temperature of concrete
the temperature of
concrete generally
taken?__
After completing the Clean all excess concrete form exterior of
strike-off procedure, bowl
what must be done
prior to obtaining the
gross mass of
measure and
sample?_____
After completion of check for unwashed concrete.
the test, how could a
technician assure
him/herself that the
entire concrete
sample in the bowl
was subjected to the
washing action?
After initial curing, moist
compressive strength
test specimens used
as the basis of
acceptance shall be
stored in a
____condition at 23C
+/- 2C until the
moment of test.
,After moulding 20, +/- 5
strength specimens
in the field, it is the
technician's
responsibily to assure
that all test
specimens are stored
under vibration-free
conditions which
maintin the
temperature
immediatly adjacent
to the specimens in
the range of ___C to
____C
After moulding test False; move immediately
specimens, you
should wait two
hours before moving
them to the nearby
location of initial
storage? True or
False?
After rodding each tap smartly with a mallet 10 or more times
layer, what should be
done to the measure
before adding
another layer of
concrete?_____
After the final False
rodding, the sides of
the slump cone
should be tapped
, After the Record it
temperature of the
concrete is read,
what is then
required?
Air content by the 0.1%
pressure method
must be reported to
what accuracy?____
Air content (pressure 10
method)
measurement and
slump must both be
completed
within___minutes of
transporting and
remixing of the
sample
all mass rounded to the nearest 0.05kg
measurements shall
be recorded to what
accuracy?
Between what two the 10% and 90% points
points of the mixer
discharge must the
concrete be
sampled?
Calibration should be 2 temperature at least 15C apart
perfomed over a
range of ___C
Cardboard moulds False; requres documenation and 35Mpa
may be routinely maximum
According to the verify confomance to a specified
CSA standard, why is requirement for temperature of concrete
the temperature of
concrete generally
taken?__
After completing the Clean all excess concrete form exterior of
strike-off procedure, bowl
what must be done
prior to obtaining the
gross mass of
measure and
sample?_____
After completion of check for unwashed concrete.
the test, how could a
technician assure
him/herself that the
entire concrete
sample in the bowl
was subjected to the
washing action?
After initial curing, moist
compressive strength
test specimens used
as the basis of
acceptance shall be
stored in a
____condition at 23C
+/- 2C until the
moment of test.
,After moulding 20, +/- 5
strength specimens
in the field, it is the
technician's
responsibily to assure
that all test
specimens are stored
under vibration-free
conditions which
maintin the
temperature
immediatly adjacent
to the specimens in
the range of ___C to
____C
After moulding test False; move immediately
specimens, you
should wait two
hours before moving
them to the nearby
location of initial
storage? True or
False?
After rodding each tap smartly with a mallet 10 or more times
layer, what should be
done to the measure
before adding
another layer of
concrete?_____
After the final False
rodding, the sides of
the slump cone
should be tapped
, After the Record it
temperature of the
concrete is read,
what is then
required?
Air content by the 0.1%
pressure method
must be reported to
what accuracy?____
Air content (pressure 10
method)
measurement and
slump must both be
completed
within___minutes of
transporting and
remixing of the
sample
all mass rounded to the nearest 0.05kg
measurements shall
be recorded to what
accuracy?
Between what two the 10% and 90% points
points of the mixer
discharge must the
concrete be
sampled?
Calibration should be 2 temperature at least 15C apart
perfomed over a
range of ___C
Cardboard moulds False; requres documenation and 35Mpa
may be routinely maximum
