QUESTIONS AND SOLUTIONS 100%
CORRECT
◉This pressure method of determining air content can be used on
concrete containing _____ aggregate.
C231/C231M - 17a. Answer: Relatively dense aggregate
C231/C231M - 17a
◉The pressure method of determining air content cannot be used
on concrete containing the following types of aggregate _____, _____,
_____.
C231/C231M - 17a. Answer: a) Lightweight
b) Air cooled blast furnace slag
c) High porosity
C231/C231M - 17a
, ◉What is the minimum allowable capacity of the measuring bowl
used in this test method?
C231/C231M - 17a. Answer: 6.0L [0.20 ft^3]
C231/C231M - 17a
◉What are the required characteristics of the tamping rod used in
this test method?
C231/C231M - 17a. Answer: Round, straight, 5/8in [16mm]
diameter, length of 4in [100mm], rounded end(s).
C231/C231M - 17a
◉What is the specified size of the mallet required for this test
method when the measuring bowl is 14L [.5 ft^3] or less?
C231/C231M - 17a. Answer: .60kg [1.25lb]
C231/C231M - 17a