C1064/C1064M – 17—Temperature of Freshly Mixed Hydraulic-Cement Concrete
This test method covers the determination of temperature of freshly mixed hydraulic-cement concrete.
1 / 10
Which ASTM standard is referenced for the definition of terms used in ASTM C1064?
ASTM C125 is the standard that provides terminology relating to concrete and concrete aggregates used in ASTM C1064.
2 / 10
What type of bath is used for verifying the accuracy of temperature measuring devices?
Verification of the accuracy of the temperature measuring devices may be made in oil or other suitable bath liquids having uniform density.
3 / 10
According to ASTM C1064, what should be done if the temperature measuring device fails verification?
If the temperature measuring device fails verification, it may be adjusted and then reverified to check if it then meets the required accuracy.
4 / 10
What is the minimum required size of the concrete sample for temperature measurement according to ASTM C1064/C1064M?
5 / 10
How long should the temperature measuring device remain in the concrete to obtain a reading?
The device should remain in the concrete for at least 2 minutes but not more than 5 minutes before reading the temperature.
6 / 10
According to ASTM C1064/C1064M, the temperature measuring device must be capable of accurately measuring the temperature of fresh concrete to within what range?
7 / 10
What is the reported accuracy of the reference temperature measuring device?
The reference temperature measuring device must be readable and accurate to ±0.2 °C at the verification points.
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What type of container is required for measuring the temperature of freshly mixed concrete?
The container must be large enough to ensure there is at least 75 mm of concrete in all directions around the sensor to accurately measure the temperature.
9 / 10
Within how many minutes should the temperature of freshly mixed concrete be measured after obtaining the sample?
The temperature of the freshly mixed concrete should be measured within 5 minutes of obtaining the sample to ensure accurate readings.
10 / 10
What should be done to the sample container before sampling freshly mixed concrete?
Immediately prior to sampling the freshly mixed concrete, the sample container should be dampened with water.
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The average score is 59%
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