ACI Certification Section 7 Study Guide Solutions

ACI Certification Section 7 Study Guide Solutions making, curing, protecting, transporting - ANSWER-Practice C31/C31m gives standardized requirements for ______, _________ , ________ and _________. 5/8 plus or minus 1/16" - ANSWER-For cylinders with a diameter of 150 mm [6 in] or greater, the tamping rod must be a round, straight steel rod with a diameter of ... 9,000 vibrations per minute - ANSWER-The minimum frequency of an internal vibrator used in this procedure is ... metal pan, wheelbarrow, clean nonabsorbent mixing board - ANSWER-The container for obtaining the concrete sample used in this procedure can be a ... 2 inches - ANSWER-A 150 by 300 mm [6 by 12 in.] cylinder mold can be used for concrete containing aggregate with particles not exceeding _________ in size, without the need for wet sieving the concrete. C172 - ANSWER-The sample of concrete used in molding test specimens must be obtained in accordance with what ASTM practice? slump, air content, temperature - ANSWER-When strength specimens are to be made, what three other tests must be made? Copyright ©SOPHIABENNETT 2025 ACADEMIC YEARALL RIGHTS RESERVED. Page 2/4 False - ANSWER-After molding test specimens, you should wait two hours before moving them to the location of initial storage. True or False. 1/4" per ft - ANSWER-The supporting surface on which specimens are stored shall be level within ... Vibration - ANSWER-For concrete with a slump of less than 25 mm [1 inch], the test specimens must be consolidated by ... 2 - ANSWER-If the concrete is to be consolidated by vibration, a standard 100 by 100 mm [4 by 8 inch] cylinder mold must be filled in _____ equal layers. 25 - ANSWER-When rodding a standard 150 by 300 mm [6 by 12 inch] cylinder, each layer must be rodded ______ times