ACI Concrete Strength Technician Training Exam 100% Verified Questions and Answers 2024

ACI Concrete Strength Technician Training Exam 100% Verified Questions and Answers 2024 Standard Practice for Capping Cylindrical Concrete Specimens - CORRECT ANSWERASTM C617 Procedures for capping enable concrete cylinders and cores to meet C617's practice requirements for___ and___. - CORRECT ANSWER-Perpendicularity, Planeness ___ can be made of glass, machined metal, polished granite, or diabase. (C617) - CORRECT ANSWER-Capping plates Sulfur caps can be formed against ___ or___ plates. - CORRECT ANSWER-Metal, stone The working surface of a capping plate shall not depart from plane by more than___ mm. - CORRECT ANSWER-0.05 Device used in conjunction with a capping plate to ensure perpendicularity. - CORRECT ANSWER-Alignment device Perpendicularity requirement of the axis of a cylindrical specimen. (degrees) - CORRECT ANSWER-0.5 The element of a melting pot that ensures against accidents during reheating of cooled sulfur. - CORRECT ANSWER-Peripheral Heating Temperature of the sulfur mortar pot/materials. - CORRECT ANSWER-265-290 F Capping material to be used on freshly molded cylinders. - CORRECT ANSWER-Neat Portland Cement paste Remove this from the end of cylinders before capping. - CORRECT ANSWER-Oily or Waxy materials Materials that can be used to cap hardened cement concrete cylinders. - CORRECT ANSWER-Neat Portland Cement, Gypsum Cement, Sulfur T/F Plaster of paris is an example of a high-strength plaster - CORRECT ANSWERFalse Sulfur and gypsum cubes much show this compressive strength or the cylinder strength, whichever is greater. - CORRECT ANSWER-5000 psi Strength of the paste depends on___, ___, and___. - CORRECT ANSWER-Water cement ratio, time, type of cement These are avoided when a slight twisting motion is applied while capping. - CORRECT ANSWER-Air voids and excess paste Sulfur material should not be used more than ___ times. - CORRECT ANSWER-5 T/F When capping concrete cylinders with a compressive strength of 5000 psi or greater, it is permitted to reuse compound recovered from the capping operation of old caps. - CORRECT ANSWER-False Sulfur mortar should be kept away from this while heating. - CORRECT ANSWERWater Sulfur mortar should be kept under a ___ with an___ for venting. - CORRECT ANSWER-Hood, exhaust Standard Practice for use of unbonded caps in determination of compressive strength of hardened concrete cylinders. - CORRECT ANSWER-ASTM C1231 Thickness of pads (C1231) in Inches - CORRECT ANSWER-1/