ACI Concrete Testing Exam Questions And Answers 100% Verified

ACI Concrete Testing Exam Questions And Answers 100% Verified ASTM C31 - answerMaking and curing concrete test specimens in the field ASTM C231 - answerConcrete Air Content Test - Pressure Method ASTM C173 - answerConcrete Air Content Test - Volume Method ASTM C172 - answerSampling Fresh Concrete ASTM C143 - answerStandard Test Method for Slump of Hydraulic-Cement Concrete ASTM C138 - answerStandard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete ASTM C1064 - answerStandard Test Method for Temperature of Freshly Mixed Hydraulic- Cement Concrete The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of _____ into the freshly mixed concrete - answer3" The temperature measuring device shall be capable of accurately measuring the temperature of freshly mixed concrete to ___ throughout a range of ____. - answer1 degree, 30 to 120 degrees The temperature measuring device shall be verified ___, or whenever there is a question of ____. - answerannually, accuracy The temperature of concrete may be measured in a wheelbarrow. - answerTrue The temperature of concrete may be measured in a wall form. - answerTrue A composite sample of concrete is required even if the only purpose for obtaining the sample is to determine the temperature. - answerFalse What must be done to the sample container prior to sampling the concrete? - answerdampen with water What must be done to the concrete surrounding the temperature measuring device after the device is submerged in concrete? - answerTap the edges How long must the temperature measuring device remain in the freshly mixed concrete? - answer2 min, no more than 5 min After the temperature of concrete is read, what is required? - answerReporting of the temperature The temperature of the concrete is reported to the nearest ___ - answer0.5 degree According to Test Method C1064/C1064M, what is one reason to take the temperature of concrete? - answerTo confirm compliance A maximum temperature of freshly mixed concrete is specified in test method C1064/C1064M - answerFalse The sample of concrete used for temperature determination must be rodded 25 times. True or False? - answerFalse Sampling by C172 covers procedures for obtaining representative samples, on which tests are to be performed to determine ___ with quality requirements of the specifications under which the concrete is furnished. - answercompliance C172 covers sampling from five types of equipment, which are ___________, ___________, __________, __________, and __________. - answerStationary mixers, paving mixers, revolving drum mixers, continuous mixers, open top mixers The elapsed time between obtaining the first and final portions of a composite sample shall not exceed ___. - answer15 min Portions of a composite sample shall be thoroughly remixed before beginning tests on the sample. - answerTrue Start tests for slump, temperature, and air content within ___ after obtaining the final portion of the composite sample. - answer5 min Start molding specimens for strength tests within how many minutes after fabricating the composite sample? - answer15 mi