ASTM C900-99

Standard Test Method for Pullout Strength of Hardened Concrete

SCOPE
1.1 This test method covers determination of the pullout strength of hardened concrete by measuring the force required to pull an embedded metal insert and the attached concrete fragment from a concrete test specimen or structure. The insert is either cast into the fresh concrete or installed in hardened concrete.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purposes only.
1.3 The text of this test method references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this test method.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Aug-2001
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.64 - Nondestructive and In-Place Testing

Relations

• Replaced By: ASTM C900-01 - Standard Test Method for Pullout Strength of Hardened Concrete
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1583/C1583M-20 - Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method)
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1857/C1857M-19 - Standard Test Method for Evaluating the Adhesion (Pull-Off) Strength of Concrete Repair and Overlay Mortar
• Effective Date: 10-Aug-2001
• Referred By: ASTM C1074-19e1 - Standard Practice for Estimating Concrete Strength by the Maturity Method
• Effective Date: 10-Aug-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 900 – 99
AMERICAN SOCIETY FOR TESTING AND MATERIALS
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Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
1
Pullout Strength of Hardened Concrete
This standard is issued under the fixed designation C 900; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope strengths can be related to compressive strength test results.
Such strength relationships depend on the configuration of the
1.1 This test method covers determination of the pullout
embedded insert, bearing ring dimensions, depth of embed-
strength of hardened concrete by measuring the force required
ment, and level of strength development in that concrete. Prior
to pull an embedded metal insert and the attached concrete
to use, these relationships must be established for each system
fragment from a concrete test specimen or structure. The insert
and each new combination of concreting materials. Such
is either cast into the fresh concrete or installed in hardened
relationships tend to be less variable where both pullout test
concrete.
specimens and compressive strength test specimens are of
1.2 The values stated in SI units are to be regarded as the
similar size, compacted to similar density, and cured under
standard. The values given in parentheses are for information
similar conditions.
purposes only.
3
1.3 The text of this test method references notes and
NOTE 1—Published reports (1-16) by different researchers present
footnotes which provide explanatory material. These notes and
their experiences in the use of pullout test equipment. Refer to ACI 228.1R
(14) for guidance on establishing a strength relationship and interpreting
footnotes (excluding those in tables and figures) shall not be
test results. The Appendix provides a means for comparing pull-out
considered as requirements of this test method.
strengths obtained using different configurations.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4.2 Pullout tests are used to determine whether the in-place
strength of concrete has reached a specified level so that, for
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- example:
(1) post-tensioning may proceed;
bility of regulatory limitations prior to use.
(2) forms and shores may be removed; or
2. Referenced Documents
(3) winter protection and curing may be terminated.
2.1 ASTM Standards: In addition, post-installed pullout tests may be used to
C 39 Test Method for Compressive Strength of Cylindrical estimate the strength of concrete in existing constructions.
2
Concrete Specimens 4.3 When planning pullout tests and analyzing test results,
C 670 Practice for Preparing Precision and Bias Statements consideration should be given to the normally expected de-
2
for Test Methods for Construction Materials crease of concrete strength with increasing height within a
2
E 4 Practices for Force Verification of Testing Machines given concrete placement in a structural element. The mea-
sured pullout strength is indicative of the strength of concrete
3. Summary of Test Method
within the region represented by the conic frustum defined by
3.1 A metal insert is either case into fresh concrete or the insert head and bearing ring. For typical surface installa-
installed into hardened concrete. When an estimate of the
tions, pullout strengths are indicative of the quality of the outer
in-place strength is desired the insert is pulled by means of a zone of concrete members and can be of benefit in evaluating
jack reacting against a bearing ring. The pullout strength is
the cover zone of reinforced concrete members.
determined by measuring the maximum force required to pull 4.4 Cast-in-place inserts require that their locations in the
the insert from the concrete mass.
structure be planned in advance of concrete placement. Post-
installed inserts can be placed at any desired location in the
4. Significance and Use
structure provided the requirements of 6.1 are satisfied.
4.1 For a given concrete and a given test apparatus, pullout
4.5 This test method is not applicable to other types of
post-installed tests that, if tested to failure, do not involve the
1
This test method is under the jurisdiction of ASTM Committee C-9 on Concrete same failure mechanism and do not produce the same conic
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.64 on
frustum as the cast-in-place test. (16).
Nondestruc
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