ACI Concrete Field-Testing Technician- Grade I Questions | 100% Correct Answers | Verified | Latest 2024 Version

Section 1: Temperature of Freshly Mixed Hydraulic-Cement Concrete - C1064 The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of _____ into the freshly mixed concrete. - 3 inches The temperature measuring device shall be capable of accurately measuring temperature of freshly mixed concrete to _____, throughout a range of _____. - +/- 1 °F 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 of 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 the fresh concrete. - Gently press the concrete around the temperature measuring device at the surface of the concreteHow long must the temperature measuring device remain in the freshly mixed concrete? - At least 2 minutes but not more than 5 minutes After the temperature of the concrete is read, what is requi