ACI Concrete Strength Testing Technician CP-19 (14) Questions with Correct Answers 2023/2024

ACI Concrete Strength Testing Technician CP-19 (14) Questions with Correct Answers 2023/2024 These procedures for capping enable concrete cylinders and cores to meet the standard's requirements for ________ and _________. - Correct Answer Planeness, perpendicularity Equipment needed for the capping process includes capping _____ , _____devices, and ______ pots. - Correct Answer Plates, alignment, melting Plates for neat cement and high strength gypsum plaster caps should be made of _____, _____, _____ or _____. - Correct Answer Glass, metal granite or diabase Sulfur mortar cap plates should be formed against _____ or _____ plates. - Correct Answer Metal, Stone The purpose of the guide bar or bull's eye level is to ensure that caps remain perpendicular to the axis of the cylinder within 0.5 degrees. True or False? - Correct Answer True To avoid accidents during reheating of cooled sulfur, use melting pots that have _____. - Correct Answer Peripheral heating The technician should use a stiff layer of _____ to cap fresh concrete cylinders. - Correct Answer Neat cement paste Hardened concrete cylinders should be capped with _____, _____ or _____. - Correct Answer High-strength gypsum paste, neat cement paste, or sulfur mortar Plaster of paris and mixtures of plaster of paris and portland cement are examples of suitable high strength plasters. True or False? - Correct Answer False Sulfur mortars and high-strength gypsum cement cubes must demonstrate a minimum compressive strength of _____ or ___ __, whichever is greater. - Correct Answer 35MPa (5000 psi), the cylinder strength The cement paste should be applied to the freshly molded cylinder from _____ to _____ hours after molding. This is to allow for _____ of the concrete specimen. - Correct Answer 2,4, settling The strength of the paste depends on: a) the water-cement ratio b) time c) the equipment used d) type of cement - Correc