ACI Certification- Concrete Field-Testing Technician Grade 1 CP-1 (12) 100% Correct Answers | Verified | Latest 2024 Version

The sensor of the temperature measuring device shall be submerged a minimum of ______ inches into the freshly mixed concrete. - 3" The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to ± ______ °F throughout a range of ____________. - 1 degree, 30 degrees to 120 degrees The temperature measuring device shall be calibrated ______ , 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 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 the fresh concrete? - Close off air voids by gently pressing the concrete around the device How long must the temperature measuring device remain in the freshly mixed concrete? - minimum of two minutes, maximum of five minutes The temperature of the concrete is reported to the nearest ______ °F - 1 degree A maximum temperature of freshly mixed concrete is specified in ASTM C1064. True or False? - FalseASTM C172 - Standard Practice for Sampling Freshly Mixed Concrete Sampling by this method is required when tests are to be made to determine _____ with specification requirements. - Compliance This method covers sampling from four types of mixers, which are _____ , _____ , _____ , and _____ . - Stationary mixers, paving mixers, revolving drum mixers and open top mixers The maximum allowable time between obtaining the first an