ACI - Concrete Strength Technician Training Exam Questions with 100% Correct Answers | Verified & Updated 2024

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