A maximum temperature of freshly mixed concrete is specified in Test Method C1064. True or False?

• A. True
• B. Not specified
• C. False
• D. Depends on mix

Answer: (C)

The test method is about measuring the temperature of freshly mixed concrete, not setting any maximum allowed temperature. It explains how to obtain an accurate temperature reading—typically by using a calibrated thermometer or thermocouple and taking the measurement from the mix at the appropriate time. But it does not specify a limit for how hot the concrete can be. That kind of maximum temperature is determined by project specifications or other guidelines that address how temperature affects workability, setting time, and potential for cracking. So the statement that a maximum temperature is specified in this method is not correct.