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ACI CONCRETE STRENGTH TESTING TECHNICIAN CP-19 (14) EXAM QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+ $8.99
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ACI CONCRETE STRENGTH TESTING TECHNICIAN CP-19 (14) EXAM QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+
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ACI CONCRETE STRENGTH TESTING TECHNICIAN CP-19 (14) EXAM QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+ These procedures for capping enable concrete cylinders and cores to meet the standard's requirements for ________ and _________. Planeness, perpendicularity Equipment needed for the capping pro...

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  • May 1, 2024
  • 10
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • aci concrete strength testing technician cp 19 1

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  • ACI
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ACI CONCRETE STRENGTH TESTING TECHNICIAN CP-19 (14)
EXAM QUESTIONS WITH COMPLETE SOLUTIONS GRADED A+

These procedures for capping enable concrete cylinders and cores
to meet the standard's requirements for ________ and _________.
Planeness, perpendicularity
Equipment needed for the capping process includes capping _____ ,
_____devices, and ______ pots.
Plates, alignment, melting
Plates for neat cement and high strength gypsum plaster caps
should be made of _____, _____, _____ or _____.
Glass, metal granite or diabase
Sulfur mortar cap plates should be formed against _____ or _____
plates.
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?
True
To avoid accidents during reheating of cooled sulfur, use melting
pots that have _____.
Peripheral heating
The technician should use a stiff layer of _____ to cap fresh concrete
cylinders.
Neat cement paste
Hardened concrete cylinders should be capped with _____, _____ or
_____.
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?
False
Sulfur mortars and high-strength gypsum cement cubes must
demonstrate a minimum compressive strength of _____ or ___ __,
whichever is greater.
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.
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
a, b and d
A slight twisting action will help eliminate _____ and air _____ when
the capping plate is placed onto the mound of the paste.
Excess paste, voids
Neat cement paste caps should not be used on dry specimens
because the caps may _____ and _____ when dry.
Shrink, crack
The technician should remove all _____ or _____ materials from the
ends of hardened concrete cylinders before capping
Oily, waxy
_____ the pot and recharge with fresh material at intervals to insure
that the oldest material in the pot has not been used more than
_____ times.
Empty, 5

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