ACI Concrete Field Testing Technician - Grade I Questions & 100% Verified Answers | Latest Update | Already Graded A+

The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of __mm [__in.] into the freshly mixed concrete. : 77mm /3in. The temperature measuring device shall be capable of accurately measuring the temperature of freshly mixed concrete to +- __C [+__F] throught a range of __. : 0.5 C / +-1F / 0-50 Decrees C The temp. measuring device shall be verified __, or whenever there is a question of __. : Annually / accuracy The temp of concrete may be measured in a wheelbarrow? T/F : True The temp. of concrete may be measured in a wall form. T/F : True 2 | P a g e A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine temp. T/F : False What must be done to the sample container prior to sampling the concrete : It must be dampened with water What must be done to the concrete surrounding the temp measuring device after the device is submerged in the fresh concrete? : Gently press the concrete at the surface around the measuring device. How long must the temperature measuring device remain in the freshly mixed concrete? : At least 2 min., no longer than 5 min. After the temperature of the concrete is read, what is then required? : Reporting of temp. The temp. of concrete is reported to the nearest __. : 1 degree