ACI Certification (Written test) ASTM C173 Volumetric
the volumetric method of determining air content of concrete can be used on concrete containing what
type of aggregate?
all types of aggregates
what are the requirements for the tamping rod used in this test method
round, straight, 5/8...
ACI Certification (Written test) ASTM C173 Volumetric
the volumetric method of determining air content of concrete can be used on concrete containing what
type of aggregate?
all types of aggregates
what are the requirements for the tamping rod used in this test method
round, straight, 5/8, hemispherical
what are the requirements for the strike of bar used in this test method
flat steel, 1/8 x 3/4 x 12 in, made of high density polyethylene
what is the approximate volume of the measuring cup used to add water to the air meter, in relation to
the volume of the air meter bowl?
1.0 +- 0.04%
what type of alcohol and concentration must be used in this test method
70% isopropyl
a mallet weighing lbs must be used to tap the sides of the bowl after rodding each layer
1.25 +- 0.5
the sample of concrete used in this test method must be obtained in accordance with what astm
practice
C172
the maximum size aggregate allowed in this test method is
1 - 1/2"
if the concrete sample contains aggregate larger than that allowed for this test, the sample must be
wet sieved over 1"
when filling the measuring bowl of the air meter, the concrete must be placed in
2 layers
what is the specified number of stroke required when rodding each layer of concrete?
25
it is necessary to tap the sides of the measuring bowl after each layer has been rodded.
True
the initial quantity of water and alcohol added to air meter can be poured directly into the neck of the
top section of the air meter.
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