ACI - CONCRETE LATEST
STRENGTH
TECHNICIAN
TRAINING
Alignment of the unbonded caps can be verified up to ___% of the final
load.(C39) - ANSWERS-10
What rate should the load be applied?(C39) - ANSWERS-35 +/- 7 psi/s
How long is a higher rate permitted for loading? (C39) - ANSWERS-
first 1/2 of the anticipated loading phase.
Compressive strength should be expressed to the nearest ___ psi.(C39) -
ANSWERS-10
What id the density calculation? - ANSWERS-Mass/ volume
T/F Supplemental means of loading for calibration my be power of
hand-operated. (C39) - ANSWERS-True
END OF
PAGE
1
, ACI - CONCRETE LATEST
STRENGTH
TECHNICIAN
TRAINING
When the specimen fails, record the ___ carried by the specimen and
note the ___. (C39) - ANSWERS-Max load, fracture pattern
The results of C39 may be used to determine quality control of concrete
proportioning, mixing, and ___ operations; compliance with ___, or for
evaluating the effectiveness of ___. - ANSWERS-Paving, Specs,
admixtures
Standard test method of flexural strength of concrete (using simple beam
with third point loading) - ANSWERS-ASTM C78
T/F Hand-operated machines having pumps that do not provide a
continuous loading in one stoke are not permitted. (C78) - ANSWERS-
True.
Forces applied to the beam will be applied ___ to the face of the
specimen and applied without eccentricity.(C78) - ANSWERS-
Perpendicularly
END OF
PAGE
2
STRENGTH
TECHNICIAN
TRAINING
Alignment of the unbonded caps can be verified up to ___% of the final
load.(C39) - ANSWERS-10
What rate should the load be applied?(C39) - ANSWERS-35 +/- 7 psi/s
How long is a higher rate permitted for loading? (C39) - ANSWERS-
first 1/2 of the anticipated loading phase.
Compressive strength should be expressed to the nearest ___ psi.(C39) -
ANSWERS-10
What id the density calculation? - ANSWERS-Mass/ volume
T/F Supplemental means of loading for calibration my be power of
hand-operated. (C39) - ANSWERS-True
END OF
PAGE
1
, ACI - CONCRETE LATEST
STRENGTH
TECHNICIAN
TRAINING
When the specimen fails, record the ___ carried by the specimen and
note the ___. (C39) - ANSWERS-Max load, fracture pattern
The results of C39 may be used to determine quality control of concrete
proportioning, mixing, and ___ operations; compliance with ___, or for
evaluating the effectiveness of ___. - ANSWERS-Paving, Specs,
admixtures
Standard test method of flexural strength of concrete (using simple beam
with third point loading) - ANSWERS-ASTM C78
T/F Hand-operated machines having pumps that do not provide a
continuous loading in one stoke are not permitted. (C78) - ANSWERS-
True.
Forces applied to the beam will be applied ___ to the face of the
specimen and applied without eccentricity.(C78) - ANSWERS-
Perpendicularly
END OF
PAGE
2
