6- c173 air content by volumetric method
Questions with Verified Correct Answers
What types of aggregate can the volumetric method of determining air content of
concrete be used on?
All types.
What are the requirements for the tamping rod used in this test method?
5/8 in. round, hemispherical tip.
What are the requirements for the strike-off bar used in this test method?
1/8 × 3/4 × 12 in., metal or plastic.
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?
1.00%.
What type of alcohol and concentration must be used in this test method?
70% isopropyl alcohol.
How much must the mallet weigh to tap the sides of the bowl after rodding each layer?
1.25 ± 0.50 lb.
According to what ASTM Practice must the sample of concrete used in this test method
be obtained?
ASTM C172.
What is the maximum size aggregate allowed in this test method?
1½ in.
Questions with Verified Correct Answers
What types of aggregate can the volumetric method of determining air content of
concrete be used on?
All types.
What are the requirements for the tamping rod used in this test method?
5/8 in. round, hemispherical tip.
What are the requirements for the strike-off bar used in this test method?
1/8 × 3/4 × 12 in., metal or plastic.
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?
1.00%.
What type of alcohol and concentration must be used in this test method?
70% isopropyl alcohol.
How much must the mallet weigh to tap the sides of the bowl after rodding each layer?
1.25 ± 0.50 lb.
According to what ASTM Practice must the sample of concrete used in this test method
be obtained?
ASTM C172.
What is the maximum size aggregate allowed in this test method?
1½ in.