10 Questions
What was the primary purpose of adding a double dosage of chemical retarder to the concrete?
To minimize slump losses and maintain workability
What was the ratio of cement to fly ash in the concrete mixture?
1:1 by weight
What was the average slump loss during the 20-minute testing period?
0.68 in.
What was the temperature range of the concrete during testing?
86 to 93°F
Why were both metal and plastic molds used in testing?
To compare the results between the two
What was the total number of slump tests performed?
270
What was the purpose of using a low slump in the initial concrete delivery?
To create a base for further concrete mixing
What is the definition of 'same materials' in the context of this test method?
Freshly mixed concrete from one batch
Why does this test method have no bias?
Because slump is defined only in terms of this test method
What was the type of cement used in the concrete mixture?
Type I/II
This quiz is about the precision statement for the ASTM concrete slump test, including the standard deviation and acceptable range of two results. It covers the test data and results from September 1997. Test your knowledge of the concrete slump test and its precision.
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