ACI Concrete Strength Testing Technician Test Bank
Standard Practice for ASTM C617
Capping Cylindrical
Concrete Specimens
Procedures for Perpendicularity, Planeness
capping enable
concrete cylinders
and cores to meet
C617's practice
requirements for___
and___.
___ can be made of Capping plates
glass, machined
metal, polished
granite, or diabase.
(C617)
Sulfur caps can be Metal, stone
formed against ___
or___ plates.
The working surface 0.05
of a capping plate
shall not depart from
plane by more
than___ mm.
Device used in Alignment device
conjunction with a
capping plate to
ensure
perpendicularity.
Perpendicularity 0.5
requirement of the
axis of a cylindrical
, ACI Concrete Strength Testing Technician Test Bank
The element of a Peripheral Heating
melting pot that
ensures against
accidents during
reheating of cooled
sulfur.
Temperature of the 265-290 F
sulfur mortar
pot/materials.
Capping material to Neat Portland Cement paste
be used on freshly
molded cylinders.
Remove this from the Oily or Waxy materials
end of cylinders
before capping.
Materials that can be Neat Portland Cement, Gypsum Cement,
used to cap Sulfur
hardened cement
concrete cylinders.
T/F Plaster of paris is False
an example of a
high-strength plaster
Sulfur and gypsum 5000 psi
cubes much show
this compressive
strength or the
cylinder strength,
whichever is greater.
Strength of the paste Water cement ratio, time, type of cement
depends on___, ___,
and___.
, ACI Concrete Strength Testing Technician Test Bank
Sulfur material 5
should not be used
more than ___ times.
T/F When capping False
concrete cylinders
with a compressive
strength of 5000 psi
or greater, it is
permitted to reuse
compound
recovered from the
capping operation of
old caps.
Sulfur mortar should Water
be kept away from
this while heating.
Sulfur mortar should Hood, exhaust
be kept under a ___
with an___ for venting.
Standard Practice for ASTM C1231
use of unbonded
caps in determination
of compressive
strength of hardened
concrete cylinders.
Thickness of pads 1/2
(C1231) in Inches
Durometer used in Shore A
C1231 with a
tolerance of +/-5.
Type of pad with Neoprene
classifications in
, ACI Concrete Strength Testing Technician Test Bank
The inside diameter 102-107%
of the retaining ring
shall be within ___ of
the diameter of the
cylinder.
Thickness of the 12 mm, 9 mm
retaining ring for 6 in
and 4 in specimens
respectively.
The bearing surfaces 0.25
shall not have
gouges or grooves
greater than this
depth. (mm)
Cylinders should be C31 or C192
made in accordance
with one of these
procedures.
Depressions in the 0.20
concrete cylinder
shall not exceed___in.,
with grinding, sawing
or capping being the
correction.
When tests are made 2000 psi
to establish a
permissible number
of reuses, the tests
within ___ of the
highest strength level
will be included in
the reuse count.
Standard Practice for ASTM C617
Capping Cylindrical
Concrete Specimens
Procedures for Perpendicularity, Planeness
capping enable
concrete cylinders
and cores to meet
C617's practice
requirements for___
and___.
___ can be made of Capping plates
glass, machined
metal, polished
granite, or diabase.
(C617)
Sulfur caps can be Metal, stone
formed against ___
or___ plates.
The working surface 0.05
of a capping plate
shall not depart from
plane by more
than___ mm.
Device used in Alignment device
conjunction with a
capping plate to
ensure
perpendicularity.
Perpendicularity 0.5
requirement of the
axis of a cylindrical
, ACI Concrete Strength Testing Technician Test Bank
The element of a Peripheral Heating
melting pot that
ensures against
accidents during
reheating of cooled
sulfur.
Temperature of the 265-290 F
sulfur mortar
pot/materials.
Capping material to Neat Portland Cement paste
be used on freshly
molded cylinders.
Remove this from the Oily or Waxy materials
end of cylinders
before capping.
Materials that can be Neat Portland Cement, Gypsum Cement,
used to cap Sulfur
hardened cement
concrete cylinders.
T/F Plaster of paris is False
an example of a
high-strength plaster
Sulfur and gypsum 5000 psi
cubes much show
this compressive
strength or the
cylinder strength,
whichever is greater.
Strength of the paste Water cement ratio, time, type of cement
depends on___, ___,
and___.
, ACI Concrete Strength Testing Technician Test Bank
Sulfur material 5
should not be used
more than ___ times.
T/F When capping False
concrete cylinders
with a compressive
strength of 5000 psi
or greater, it is
permitted to reuse
compound
recovered from the
capping operation of
old caps.
Sulfur mortar should Water
be kept away from
this while heating.
Sulfur mortar should Hood, exhaust
be kept under a ___
with an___ for venting.
Standard Practice for ASTM C1231
use of unbonded
caps in determination
of compressive
strength of hardened
concrete cylinders.
Thickness of pads 1/2
(C1231) in Inches
Durometer used in Shore A
C1231 with a
tolerance of +/-5.
Type of pad with Neoprene
classifications in
, ACI Concrete Strength Testing Technician Test Bank
The inside diameter 102-107%
of the retaining ring
shall be within ___ of
the diameter of the
cylinder.
Thickness of the 12 mm, 9 mm
retaining ring for 6 in
and 4 in specimens
respectively.
The bearing surfaces 0.25
shall not have
gouges or grooves
greater than this
depth. (mm)
Cylinders should be C31 or C192
made in accordance
with one of these
procedures.
Depressions in the 0.20
concrete cylinder
shall not exceed___in.,
with grinding, sawing
or capping being the
correction.
When tests are made 2000 psi
to establish a
permissible number
of reuses, the tests
within ___ of the
highest strength level
will be included in
the reuse count.
