ASTM C1064/C1064M TESTS WITH ANSWERS A+ GRADE.
A maximum temperature of freshly mixed concrete is specified in Test Method C1064/C1064M. True or
false? - False
The sample of concrete used for temperature determination must be rodded 25 times. True or false? -
False
The end of the temperature sensing portion of the temperature measuring device is submerged in a
minimum of _____ mm [_____ in.] into the freshly mixed concrete. - 75 mm [3 in]
The temperature measuring device shall be capable of accurately measuring the temperature of freshly
mixed concrete to +/- _____ °C [+/- _____ °F] throughout a range of _____ °C [_____ °F]. - 0.5 °C [1
°F], 0 °C to 50 °C [30 °F to 120 °F]
The temperature measuring device shall be verified _____, or whenever there is a question of _____. -
annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or false? - True
The temperature of concrete may be measured in a wall form. True or false? - True
A composite sample of concrete is required even if the only purpose for obtaining the sample is to
determine temperature. True of false? - False
What must be done to the sample container prior to sampling the concrete? - Dampen (with water)
What must be done to the concrete surrounding the temperature measuring device after the device is
submerged in fresh concrete? - Gently press the concrete around the temperature measuring device at the
surface of the concrete
How long must the temperature measuring device remain in the freshly mixed concrete? - 2 to 5 minutes
A maximum temperature of freshly mixed concrete is specified in Test Method C1064/C1064M. True or
false? - False
The sample of concrete used for temperature determination must be rodded 25 times. True or false? -
False
The end of the temperature sensing portion of the temperature measuring device is submerged in a
minimum of _____ mm [_____ in.] into the freshly mixed concrete. - 75 mm [3 in]
The temperature measuring device shall be capable of accurately measuring the temperature of freshly
mixed concrete to +/- _____ °C [+/- _____ °F] throughout a range of _____ °C [_____ °F]. - 0.5 °C [1
°F], 0 °C to 50 °C [30 °F to 120 °F]
The temperature measuring device shall be verified _____, or whenever there is a question of _____. -
annually, accuracy
The temperature of concrete may be measured in a wheelbarrow. True or false? - True
The temperature of concrete may be measured in a wall form. True or false? - True
A composite sample of concrete is required even if the only purpose for obtaining the sample is to
determine temperature. True of false? - False
What must be done to the sample container prior to sampling the concrete? - Dampen (with water)
What must be done to the concrete surrounding the temperature measuring device after the device is
submerged in fresh concrete? - Gently press the concrete around the temperature measuring device at the
surface of the concrete
How long must the temperature measuring device remain in the freshly mixed concrete? - 2 to 5 minutes
