ASTM C900-01

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

• Replaces: ASTM C900-99 - Standard Test Method for Pullout Strength of Hardened Concrete
• Effective Date: 10-Aug-2001
• Replaced By: ASTM C900-06 - Standard Test Method for Pullout Strength of Hardened Concrete
• Effective Date: 15-Dec-2006
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C900–01
Standard Test Method for
1
Pullout Strength of Hardened Concrete
This standard is issued under the fixed designation C900; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope * jack reacting against a bearing ring. The pullout strength is
determined by measuring the maximum force required to pull
1.1 This test method covers determination of the pullout
the insert from the concrete mass.
strength of hardened concrete by measuring the force required
to pull an embedded metal insert and the attached concrete
4. Significance and Use
fragmentfromaconcretetestspecimenorstructure.Theinsert
4.1 For a given concrete and a given test apparatus, pullout
is either cast into the fresh concrete or installed in hardened
strengths can be related to compressive strength test results.
concrete.
Such strength relationships depend on the configuration of the
1.2 The values stated in SI units are to be regarded as the
embedded insert, bearing ring dimensions, depth of embed-
standard. The values given in parentheses are for information
ment, and level of strength development in that concrete. Prior
purposes only.
to use, these relationships must be established for each system
1.3 The text of this test method references notes and
and each new combination of concreting materials. Such
footnoteswhichprovideexplanatorymaterial.Thesenotesand
relationships tend to be less variable where both pullout test
footnotes (excluding those in tables and figures) shall not be
specimens and compressive strength test specimens are of
considered as requirements of this test method.
similar size, compacted to similar density, and cured under
1.4 This standard does not purport to address all of the
similar conditions.
safety concerns, if any, associated with its use. It is the
4
responsibility of the user of this standard to establish appro-
NOTE 1—Published reports (1-16) by different researchers present
priate safety and health practices and determine the applica- theirexperiencesintheuseofpullouttestequipment.RefertoACI228.1R
(14) for guidance on establishing a strength relationship and interpreting
bility of regulatory limitations prior to use.
test results. The Appendix provides a means for comparing pull-out
strengths obtained using different configurations.
2. Referenced Documents
2.1 ASTM Standards: 4.2 Pullout tests are used to determine whether the in-place
strength of concrete has reached a specified level so that, for
C39/C39M Test Method for Compressive Strength of Cy-
2
lindrical Concrete Specimens example:
(1) post-tensioning may proceed;
C670 Practice for Preparing Precision and Bias Statements
2
for Test Methods for Construction Materials (2) forms and shores may be removed; or
3
(3) winter protection and curing may be terminated.
E4 Practices for Force Verification of Testing Machines
E74 Practice of Calibration of Force Measuring Instru- In addition, post-installed pullout tests may be used to
estimate the strength of concrete in existing constructions.
ments for Verifying the Load Indication of Testing Ma-
3
chines 4.3 When planning pullout tests and analyzing test results,
consideration should be given to the normally expected de-
3. Summary of Test Method
crease of concrete strength with increasing height within a
3.1 A metal insert is either case into fresh concrete or given concrete placement in a structural element. The mea-
installed into hardened concrete. When an estimate of the sured pullout strength is indicative of the strength of concrete
in-place strength is desired the insert is pulled by means of a within the region represented by the conic frustum defined by
the insert head and bearing ring. For typical surface installa-
tions,pulloutstrengthsareindicativeofthequalityoftheouter
1
This test method is under the jurisdiction of ASTM Committee C09 on
zone of concrete members and can be of benefit in evaluating
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
the cover zone of reinforced concrete members.
C09.64 on Nondestructive and In-Place Testing .
Current edition approved Aug. 10, 2001. Published October 2001. Originally
published as C900–78T. Last previous edition C900–99.
2 4
Annual Book of ASTM Standards, Vol 04.02. The boldface numbers refer to the list of references at the end of this test
3
Annual Book of ASTM Standards, Vol 03.01. method.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page:
...