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
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.
2 / 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?
3 / 10
What is the minimum period that the thermometer should be left in the concrete to ensure a stable reading?
4 / 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.
5 / 10
How should the thermometer be inserted into the concrete sample to ensure an accurate temperature reading?
6 / 10
After inserting the temperature measuring device into the fresh concrete, what should be done with the surrounding concrete?
7 / 10
How often should the accuracy of the temperature measuring device be verified?
The accuracy of each temperature measuring device used for determining the temperature of freshly mixed concrete should be verified at least annually.
8 / 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.
9 / 10
What is the minimum immersion depth for the temperature measuring device in the concrete?
The end of the temperature sensing portion of the device must be submerged a minimum of 75 mm into the freshly mixed concrete to ensure an accurate measurement.
10 / 10
What should be done after placing the temperature measuring device in the freshly mixed concrete?
After positioning the temperature measuring device, gently press the concrete around the device at the surface to prevent ambient air temperature from affecting the reading.
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The average score is 67%
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