Aci slump test - Study guides, Class notes & Summaries

ACI Certification ExamASTM C172 covers sampling from stationary, paving and truck mixers, and from agitating and non-agitating equipment used to transport central-mixed concrete. - correct 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 computations. - correct answer False Samples should be taken before 10% or after 90% of the batch has been discharged. - correct answer False Samp...

ACI Test Questions and Answers Guaranteed A+ The total time allowed between obtaining the first and final portions of a composite sample is 15 minutes When it is necessary to wet sieve the concrete sample, wet sieving should be performed after the individual samples are remixed into a composite sample (T or F) F Tests for slump, temperature, and air content must begin within ______ minutes after obtaining the composite sample 5 minutes Begin molding test specimens within...

ACI Certification Concrete Field Testing Tech Grade 1 Questions and Answers 100% Verified The end of the temperature sensing portion of the temperature measuring device is submerged a minimum of ___________ into FRESHLY mixed concrete. - Answer- 75 mm (3 in) The temperature measuring device shall be capable of accurately measuring the temperature of freshly mixed concrete to _______________ throughout a range of ____________ C to _____________ C and _____________ F to ___________ F. - An...

2. T/F: When the concrete contains large aggregate, the testing technician should wet-sieve the sample before making unit weight tests for use in yield computations.Answer - False 4. T/F: Samples smaller than 28L (1 .) are allowed on routine air content, temperature, and slump tests.Answer - True 7. How do you regulate the rate of discharge of the batch from the revolving truck drum mixer or agitator?Answer - By the rate of revolution of the drum 10. While the technician is checking ...

ACI Certification Section 3 | Questions and Correct Answers | Latest Update 2024/2025 1.5 inches - Answer -The slump test is applicable to plastic concrete with a maximum size aggregate of ... wet sieved over a 1.5" sieve - Answer -When the concrete contains aggregate larger than allowed for the slump test, the large aggregate must be ... frustum of a cone - Answer -The mold for making the slump test is in the shape of ... 12 inches - Answer -The height of the slump mold is ... False...

ACI Exam Practice Questions & Answers (RATED A)ACI Exam Practice Questions & Answers (RATED A)ACI Exam Practice Questions & Answers (RATED A)ACI Exam Practice Questions & Answers (RATED A)ACI Exam Practice Questions & Answers (RATED A) 60-80*F - ANSWER For normal strength concretes, what temperature range must be maintained for test cylinders during initial curing? 5 minutes - ANSWER Tests for the slump and air content must be started within ____ after obtaining the final portion of the comp...

ACI Concrete Field-Testing Technician- Grade I Questions and Answers Fully solved 2024 The sensor of the temperature measuring device shall be submerged a minimum of _____ in. [_____mm] into the freshly mixed concrete. 3 in. [75 mm] The temperature measuring device shall have a capacity of measuring temperature of freshly mixed concrete to +- _____ degrees F [+- _____ C] throughout a range of _____. 1 degree F [0.5 C], 30 degrees F to 120 F [0 C to 50 C] The temperature measurin...

ACI Concrete Testing Questions and Answers Graded A+ ASTM C31 Making and curing concrete test specimens in the field ASTM C231 Concrete Air Content Test - Pressure Method ASTM C173 Concrete Air Content Test - Volume Method ASTM C172 Sampling Fresh Concrete ASTM C143 Standard Test Method for Slump of Hydraulic-Cement Concrete ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete ASTM C1064 Stand...

ACI Written Exam Questions & Revised Correct Answers Updated False. Relatively dense - CORRECT ANS : The method of determining air content of concrete containing lightweight aggregate is the pressure method True - CORRECT ANS : Is the following statement true or false? When making a test cylinder from concrete being used in construction, the field technician must also measure the slump of the concrete. Disregard the test and retest on another portion of the sample. - CORRECT ANS ...

ACI - ANSWER American Concrete Institution C1064 - ANSWER Standard Test Method for Temperature of freshly mixed Hydraulic-Cement Concrete C172 - ANSWER Standard practice for sampling freshly mixed concrete C143 - ANSWER Standard test method for slump of hydraulic - cement concrete C138 - ANSWER Standard test method for Density (Unit Weight), Yield and Air Content (Gravimetric) of Concrete C231 - ANSWER Standard test method for Air Content of Freshly Mixed Concrete by the Pressure ...