ASTM C1245/C1245M-12
(Test Method)Standard Test Method for Determining Relative Bond Strength Between Hardened Roller Compacted Concrete Lifts (Point Load Test) (Withdrawn 2019)
Standard Test Method for Determining Relative Bond Strength Between Hardened Roller Compacted Concrete Lifts (Point Load Test) (Withdrawn 2019)
SIGNIFICANCE AND USE
This test method is used to measure the relative bond strength of roller-compacted concrete to other roller-compacted concrete by using a point load test at the joint (See Note 1). Relative bond strength is determined using drilled cores or cast cylindrical specimens in which the bond surface is essentially normal to the longitudinal axis at approximately the mid-length of the specimen. A splitting tensile stress normal to the bond surface is produced by applying a point load at the joint.
The test results in a value that can be compared to that obtained by testing other specimens which are made from the same materials and by the same process. Results can be used for the purpose of comparing the relative bond strength of various joint conditions, joint treatments, or bonding materials applied to the joint.
The test results are not to be taken as a true bond strength. Values of cohesion or tensile strength shall be determined by methods other than this test method.
This test method may be used either for laboratory investigation by casting individual composite cylinders or by coring prototype structures or assemblies (Test Method C42/C42M).
Note 1—This test may be used for testing the relative bond of other hardened hydraulic cement-based materials other than RCC.
SCOPE
1.1 This test method is intended for testing roller-compacted concrete specimens and covers determination of the relative bond between layers of roller-compacted concrete or other hardened concrete in multiple-lift forms of construction. It is applicable to all types of layered roller-compacted concrete where the total depth is sufficient to meet the minimum specimen length and diameter requirements of this test method. This test method is not intended to provide tensile strength results of the material tested.
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 The text of this standard 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 standard.
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.
WITHDRAWN RATIONALE
This test method was intended for testing roller-compacted concrete specimens and covered determination of the relative bond between layers of roller-compacted concrete or other hardened concrete in multiple-lift forms of construction.
Formerly under the jurisdiction of Committee C09 on Concrete and Concrete Aggregates, this test method was withdrawn in November 2019. This test method is being withdrawn without replacement due to its limited use by industry.
General Information
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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: C1245/C1245M − 12
Standard Test Method for
Determining Relative Bond Strength Between Hardened
1
Roller Compacted Concrete Lifts (Point Load Test)
This standard is issued under the fixed designation C1245/C1245M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* C125 Terminology Relating to Concrete and Concrete Ag-
gregates
1.1 Thistestmethodisintendedfortestingroller-compacted
C192/C192M Practice for Making and Curing Concrete Test
concrete specimens and covers determination of the relative
Specimens in the Laboratory
bond between layers of roller-compacted concrete or other
C670 Practice for Preparing Precision and Bias Statements
hardened concrete in multiple-lift forms of construction. It is
for Test Methods for Construction Materials
applicable to all types of layered roller-compacted concrete
C1176/C1176M Practice for Making Roller-Compacted
where the total depth is sufficient to meet the minimum
Concrete in Cylinder Molds Using a Vibrating Table
specimenlengthanddiameterrequirementsofthistestmethod.
C1435/C1435M Practice for Molding Roller-Compacted
This test method is not intended to provide tensile strength
Concrete in Cylinder Molds Using a Vibrating Hammer
results of the material tested.
D1557 Test Methods for Laboratory Compaction Character-
3
1.2 The values stated in either SI units or inch-pound units
istics of Soil Using Modified Effort (56,000 ft-lbf/ft
3
are to be regarded separately as standard. The values stated in
(2,700 kN-m/m ))
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining 3. Terminology
values from the two systems may result in non-conformance
3.1 Refer toTerminology C125 for definitions of terms used
with the standard.
in this test method.
1.3 The text of this standard references notes and footnotes,
4. Significance and Use
which provide explanatory material. These notes and footnotes
4.1 This test method is used to measure the relative bond
(excluding those in tables and figures) shall not be considered
strength of roller-compacted concrete to other roller-
as requirements of this standard.
compacted concrete by using a point load test at the joint (see
1.4 This standard does not purport to address all of the
Note 1). Relative bond strength is determined using drilled
safety concerns, if any, associated with its use. It is the
cores or cast cylindrical specimens in which the bond surface
responsibility of the user of this standard to establish appro-
is essentially normal to the longitudinal axis at approximately
priate safety and health practices and determine the applica-
the mid-length of the specimen. A splitting tensile stress
bility of regulatory limitations prior to use.
normal to the bond surface is produced by applying a point
2. Referenced Documents load at the joint.
2
4.2 The test results in a value that can be compared to that
2.1 ASTM Standards:
C39/C39M Test Method for Compressive Strength of Cylin- obtained by testing other specimens which are made from the
same materials and by the same process. Results can be used
drical Concrete Specimens
C42/C42M Test Method for Obtaining and Testing Drilled for the purpose of comparing the relative bond strength of
various joint conditions, joint treatments, or bonding materials
Cores and Sawed Beams of Concrete
applied to the joint.
1 4.3 The test results are not to be taken as a true bond
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee strength. Values of cohesion or tensile strength shall be
C09.45 on Roller-Compacted Concrete.
determined by methods other than this test method.
Current edition approved April 1, 2012. Published May 2012. Originally
approved in 1993. Last previous edition approved in 2011 as C1245/C1245M – 11. 4.4 This test method may be used either for laboratory
DOI: 10.1520/C1245_C1245M-12.
investigation by casting individual composite cylinders or by
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
coring prototype structures or assemblies (Test Method C42/
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
C42M).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. NOTE 1—This test may be used for testing the relative bond of other
*A Summary of Changes section appears at the end of this standard
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