ASTM C1583-04
(Test Method)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)
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)
SIGNIFICANCE AND USE
This test method determines the tensile strength of concrete near to the prepared surface, which can be used as an indicator of the adequacy of surface preparation before applying a repair or an overlay material.
When the test is performed on the surface of a repair or an overlay material, it determines the bond strength to the substrate or the tensile strength of either the overlay or substrate, whichever is weaker.
The method may also be used to evaluate the adhesive strength of bonding agents.
When the test is performed on the surface of a material applied to the substrate, the measured strength is controlled by the failure mechanism requiring the least stress. Thus it is not possible to know beforehand which strength will be measured by the test. For this reason, the failure mode has to be reported for each individual test result, and tests results are averaged only if the same failure mode occurs.
SCOPE
1.1 This test method is suitable for both field and laboratory use to determine one or more of the following:
1.1.1 The near-surface tensile strength of the substrate as an indicator of the adequacy of surface preparation before application of a repair or overlay material.
1.1.2 The bond strength of a repair or an overlay material to the substrate.
1.1.3 The tensile strength of a repair or overlay material, or an adhesive used in repairs, after the material has been applied to a surface.
1.2 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.
1.3 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.
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Standards Content (Sample)
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Designation:C1583–04
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)
This standard is issued under the fixed designation C 1583; 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 3. Terminology
1.1 This test method is suitable for both field and laboratory 3.1 Definitions—For definitions of terms used in this test
use to determine one or more of the following: method refer to Terminology C 125 and ACI 503R .
1.1.1 The near-surface tensile strength of the substrate as an
4. Summary of Test Method
indicator of the adequacy of surface preparation before appli-
cation of a repair or overlay material. 4.1 This test is performed on the surface of a prepared
concrete base before application of a concrete repair or overlay
1.1.2 The bond strength of a repair or an overlay material to
the substrate. material, or on the surface of a concrete repair or overlay
material after the material has been applied to the prepared
1.1.3 The tensile strength of a repair or overlay material, or
an adhesive used in repairs, after the material has been applied concrete surface.
4.2 The test specimen is formed by drilling a shallow core
to a surface.
1.2 The values stated in either SI units or inch-pound units into and perpendicular to the surface of the substrate, and
leaving the intact core attached to the concrete. A steel disk is
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each bonded to the top surface of the test specimen.
4.3 A tensile load is applied to the steel disk until failure
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance occurs. The failure load and the failure mode are recorded and
the nominal tensile stress at failure is calculated.
with the standard.
1.3 This standard does not purport to address all of the
5. Significance and Use
safety concerns, if any, associated with its use. It is the
5.1 This test method determines the tensile strength of
responsibility of the user of this standard to establish appro-
concrete near to the prepared surface, which can be used as an
priate safety and health practices and determine the applica-
indicator of the adequacy of surface preparation before apply-
bility of regulatory limitations prior to use.
ing a repair or an overlay material.
2. Referenced Documents
5.2 When the test is performed on the surface of a repair or
an overlay material, it determines the bond strength to the
2.1 ASTM Standards:
C 125 Terminology Relating to Concrete and Aggregates substrate or the tensile strength of either the overlay or
substrate, whichever is weaker.
C 881/C 881M Specification for Epoxy-Resin Base Bond-
ing Systems for Concrete 5.3 The method may also be used to evaluate the adhesive
strength of bonding agents.
C 900 Test Method for Pullout Strength of Hardened Con-
crete 5.4 When the test is performed on the surface of a material
applied to the substrate, the measured strength is controlled by
the failure mechanism requiring the least stress. Thus it is not
possible to know beforehand which strength will be measured
This test method is under the jurisdiction of ASTM Committee C09 on
by the test. For this reason, the failure mode has to be reported
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
for each individual test result, and tests results are averaged
C09.25 on Organic Materials for Bonding, Patching and Sealing Concrete.
only if the same failure mode occurs.
Current edition approved Feb. 1, 2004. Published March 2004.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on ACI 503R-93 (Reapproved 1998), “Use of Epoxy Compounds with Concrete,”
the ASTM website. American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C1583–04
6. Apparatus 9.2 Preparation to Determine Bond or Tensile Strength of
the Repair or Overlay Material:
6.1 Core Drill, for preparing test specimen.
9.2.1 Prepare the surface in accordance with 9.1.
6.2 Core Barrel,withdiamondimpregnatedbits-nominally
9.2.2 Apply and cure the repair or overlay material in
50 mm [2.0 in.] inside diameter.
accordance with specifications for the repair or overlay opera-
6.3 Steel Disk, nominally 50 mm [2.0 in.] diameter and at
tion.
least 25 mm [1.0 in.] thick.
6.4 Tensile Loading Device, with a load-indicating system
10. Preparation of Test Specimen
and nominal capacity of 22 k N (5,000 lbf) and capable of
applying load at the specified rate.The loading device includes
10.1 Using the coring equipment, drill a circular cut per-
a tripod or bearing ring for distributing the force to the
pendicular to the surface. For tests of substrate concrete, drill
supporting surface.
to a depth of at least 10 mm [0.5 in.]. For tests of repair or
6.4.1 Within the operating range, the indicated tensile force
overlay materials, drill to at least 10 mm [0.5 in.] below the
shall be within 6 2 % of the force measured by a calibrated
concrete-overlay interface. The test specimen is left intact,
testing machine or load cell. Verify the tensile loading device
attached to the substrate. Measure the diameter of the test
at least once a year and after repairs and adjustments.
specimenintwodirectionsatrightanglestoeachother.Record
the average diameter to the nearest 0.2 mm [0.01 in.].
NOTE 1—See Test Method C 900 for suitable verification schemes.
10.2 Remove any standing water; clean the surface of any
6.4.2 A coupling device shall be used to connect the steel
debris from the drilling operation and allow to dry.
disk to the tensile loading device. The coupling device shall be
10.3 Attach the steel disk to the top of the test specimen
designed to withstand the tensile load capacity without yield-
using the epoxy adhesive. Ensure that the disk is centered with
ing, and to transmit the tensile force parallel to and in line with
the test specimen and that the axis of the disk is parallel to the
the axis of the cylindrical test specimen without imparting
axis of the test specimen. Cure the epoxy adhesive following
torsion or bending to the test specimen.
manufacturer’s instructions (see Note 4). Do not allow the
adhesive to run down the side of the test specimen into the
7. Materials
annular cut; if this occurs, the specimen is not tested and
7.1 Epoxy adhesive material for bonding the steel disk to
another is prepared. At temperatures below 20°C [70°F], it is
the test specimen. It shall be a fast-curing paste or gel meeting
permitted to gently hea
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