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The volumetric method of determining air content of concrete can be used on concrete containing what types of aggregate?
light weight aggregates, air cooled slag, highly porus aggregates
What are the requirements for the tamping rod used in this test method?
5/8 +- 1/16'' Tamping Rod must be +4'' greater bowl but not more than 24''
What are the requirements for the strike-off bar used in this test method
1/8 by 3/4 by 12 in. abrasion resistant plastic / high density polyethelene
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% +- .04%
What type of alcohol and concentration must be used in this test method?
Isopropyl Alcohol / 70%
A mallet weighing _____ must be used to tap the sides of the bowl after rodding each layer.
1.25 +- .5lb or 600 +- 200G
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
When filling the measuring bowl of the air meter, the concrete must be placed in ____ layers of equal depth
2
What is the specified number of strokes required when rodding each layer of concrete?
25
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