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ACI CONCRETE STRENGTH TESTING
TECHNICIAN CP-19 (14) QUESTIONS AND
CORRECT DETAILED ANSWERS |ALREADY
GRADED A+ LATEST UPDATE | 2024-2025
These procedures for capping enable concrete cylinders and cores to meet the
standard's requirements for ________ and _________.
Ans
Planeness, perpendicularity
Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots.
Ans
Plates, alignment, melting
Plates for neat cement and high strength gypsum plaster caps should be made
of _____, _____, _____ or _____.
Ans
Glass, metal granite or diabase
Sulfur mortar cap plates should be formed against _____ or _____ plates.
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Ans
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?
Ans
True
To avoid accidents during reheating of cooled sulfur, use melting pots that have
_____.
Ans
Peripheral heating
The technician should use a stiff layer of _____ to cap fresh concrete
cylinders.
Ans
Neat cement paste
Hardened concrete cylinders should be capped with _____, _____ or _____.
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Ans
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?
Ans
False
Sulfur mortars and high-strength gypsum cement cubes must demonstrate a
minimum compressive strength of _____ or ___ __, whichever is greater.
Ans
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.
Ans
2,4, settling
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