Aci exam qa 2023 - Study guides, Class notes & Summaries

The end of the thermometer is submerged a minimum of __________ int the freshly mixed concrete - Answer- 3 inches (75 mm) The thermometer shall be capable of accurately measuring the temp of freshly mixed concrete to the _____________ throughout a range of ________________________ degrees. - Answer- + or - 1 degree F 30 -120 degrees F The thermometer shall be verified ______________ or whenever the there is a question of _______________. - Answer- annually accuracy The temp of concre...

The sensor of the temperature measureing device shall be submerged a minimum of ____ in - Answer- 3 (75mm) The temperature measureing device shall have a capacity of measuring temperature of freshly mixed conrcrete to +-_____ degrees F throught a range of _____ - Answer- 1(.5 degrees C), 30-120 (0-50 degrees C) The temperature measuring device shall be calibrated____, or whenever there is a question of _____ - Answer- annually, accuracy The temp of concrete may be measured in a wheelbar...

This test method covers sampling from stationary, paving and truck mixers, and from agitating and non agitating equipment used to transport central mixed concrete - Answer- True When the concrete contains large aggregate, the testing technician should wet sieve the sample before making unit weight tests for use in yield computation - Answer- False - cant wet sieve unit weight Samples should be taken before 10% or after 90% of the batch has been discharged. - Answer- False Samples smalle...