Standard Practice for
Making and Curing Concrete Test Specimens in the Field
This practice covers procedures for making and curing
cylinder and beam specimens from representative samples of
fresh concrete for a construction project.
The concrete used to make the molded specimens shall
be sampled after all on-site adjustments have been made to the
mixture proportions, including the addition of mix water and
admixtures. This practice is not satisfactory for making specimens from concrete not having measurable slump or requiring
other sizes or shapes of specimens.
The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance
with the standard.
Significance and Use
This practice provides standardized requirements for
making, curing, protecting, and transporting concrete test
specimens under field conditions
If the specimens are made and standard cured, as
stipulated herein, the resulting strength test data when the
specimens are tested are able to be used for the following
purposes:
Acceptance testing for specified strength,
Checking adequacy of mixture proportions for
strength, and Quality control.
3 If the specimens are made and field cured, as stipulated
herein, the resulting strength test data when the specimens are
tested are able to be used for the following purposes:
Determination of whether a structure is capable of
being put in service
Comparison with test results of standard cured specimens or with test results from various in-place test methods
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