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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

How long should the temperature measuring device remain in the concrete to obtain a reading?

C) 10 minutes

A) 1 minute

B) 2-5 minutes

D) 15 minutes

2 / 10

What type of container is required for measuring the temperature of freshly mixed concrete?

A) A container that allows for 50 mm of concrete around the sensor

D) A plastic container

B) A container that provides at least 75 mm of concrete in all directions around the sensor

C) A metal container

3 / 10

At what maximum time interval after obtaining the sample should the temperature of the concrete be measured?

15 Minutes

7 Minutes

10 Minutes

5 Minutes

4 / 10

According to ASTM C1064, what should be done if the temperature measuring device fails verification?

D) Send the device for manufacturer recalibration

C) Use the device for another purpose

B) Adjust and reverify the device

A) Discard the device

5 / 10

How often should the accuracy of the temperature measuring device be verified?

B) Quarterly

C) Annually

D) Every two years

A) Monthly

6 / 10

What is the significance of the number following the designation C1064/C1064M in the standard?

A) It indicates the number of revisions

B) It indicates the year of last revision

D) It designates the section number

C) It specifies the number of pages in the standard

7 / 10

What is the minimum period that the thermometer should be left in the concrete to ensure a stable reading?

5 minutes

10 minutes

2 minutes

1 minutes

8 / 10

What is the primary purpose of ASTM C1064?

A) To determine the chemical composition of concrete

D) To evaluate the tensile strength of concrete

B) To measure the temperature of freshly mixed hydraulic-cement concrete

C) To assess the drying time of concrete

9 / 10

How should the thermometer be inserted into the concrete sample to ensure an accurate temperature reading?

To a depth of 3 inches

To a depth of 2 to 3 inches from the bottom of the container

So that it is entirely submerged

To the bottom of the container

10 / 10

What should be done after placing the temperature measuring device in the freshly mixed concrete?

A) Press down on the device to submerge it deeper

B) Gently press the concrete around the device at the surface to close the void

D) Stir the concrete around the device

C) Add more concrete to the container

Your score is

The average score is 67%