ASTM C1245/C1245M-11
(Test Method)Standard Test Method for Determining Bond Strength Between Hardened Roller Compacted Concrete and Other Hardened Cementitious Mixtures (Point Load Test)
Standard Test Method for Determining Bond Strength Between Hardened Roller Compacted Concrete and Other Hardened Cementitious Mixtures (Point Load Test)
SIGNIFICANCE AND USE
This test method is used to measure the effectiveness of bonding roller-compacted concrete to other roller-compacted concrete or other hardened cementitious mixtures by using a point load test at the joint. 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.
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).
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 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.
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Designation:C1245/C1245M–11
Standard Test Method for
Determining Bond Strength Between Hardened Roller
Compacted Concrete and Other Hardened Cementitious
1
Mixtures (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
concrete specimens and covers determination of the relative
Test 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 concrete where the total depth
C1176/C1176M Practice for Making Roller-Compacted
is sufficient to meet the minimum specimen length and diam-
Concrete in Cylinder Molds Using a Vibrating Table
eter requirements of this test method. This test method is not
C1435/C1435M Practice for Molding Roller-Compacted
intended to provide tensile strength results of the material
Concrete in Cylinder Molds Using a Vibrating Hammer
tested.
D1557 Test Methods for Laboratory Compaction Charac-
1.2 The values stated in either SI units or inch-pound units
teristics of Soil Using Modified Effort (56,000 ft-lbf/
are to be regarded separately as standard. The values stated in
3 3
ft (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,
which provide explanatory material. These notes and footnotes
4. Significance and Use
(excluding those in tables and figures) shall not be considered
4.1 This test method is used to measure the effectiveness of
as requirements of this standard.
bonding roller-compacted concrete to other roller-compacted
1.4 This standard does not purport to address all of the
concrete or other hardened cementitious mixtures by using a
safety concerns, if any, associated with its use. It is the
point load test at the joint. Bond strength is determined using
responsibility of the user of this standard to establish appro-
drilled cores or cast cylindrical specimens in which the bond
priate safety and health practices and determine the applica-
surfaceisessentiallynormaltothelongitudinalaxisatapproxi-
bility of regulatory limitations prior to use.
matelythemid-lengthofthespecimen.Asplittingtensilestress
normal to the bond surface is produced by applying a point
2. Referenced Documents
2 load at the joint.
2.1 ASTM Standards:
4.2 This test method may be used either for laboratory
C39/C39M Test Method for Compressive Strength of Cy-
investigation by casting individual composite cylinders or by
lindrical Concrete Specimens
coring prototype structures or assemblies (Test Method C42/
C42/C42M Test Method for Obtaining and Testing Drilled
C42M).
Cores and Sawed Beams of Concrete
5. Apparatus
1
This test method is under the jurisdiction of ASTM Committee C09 on
5.1 Testing Machine—The testing machine shall conform to
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
the requirements of Test Method C39/C39M.
C09.45 on Roller-Compacted Concrete.
5.2 Testing Apparatus—The testing apparatus shall be con-
Current edition approved April 1, 2011. Published May 2011. Originally
approved in 1993. Last previous edition approved in 2006 as C1245/C1245M–06. structed of steel and allow the testing of both 100 and 150-mm
DOI: 10.1520/C1245_C1245M-11.
[4and6-in.]diameterspecimens.Thetestschematicisgivenin
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Fig. 1. The testing apparatus shall permit the positioning of a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
specimen such that the joint of the bonded surfaces is oriented
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*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: 1 ----------------------
C1245/C1245M–11
FIG. 1 Schematic of Loading Method
as closely as possible p
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1245/C1245M–06 Designation: C1245/C1245M – 11
Standard Test Method for
Determining Bond Strength Between Hardened Roller
Compacted Concrete and Other Hardened Cementitious
1
Mixtures (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*
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 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.
1.2The values stated in SI units, shown in brackets, 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, without
combining values in any way. Combining values from the two systems may result in non-conformance with the standard.
1.3
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
C125 Terminology Relating to Concrete and Concrete Aggregates
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C11761176/C1176M Practice for Making Roller-Compacted Concrete in Cylinder Molds Using a Vibrating Table
C1435/C1435M Practice for Molding Roller-Compacted Concrete in Cylinder Molds Using a Vibrating Hammer
3
D1557 Test Methods for Laboratory Compaction Characteristics of Soil Using Modified Effort (56,000 ft-lbf/ft (2,700
3
kN-m/m ))
3. Terminology
3.1 Refer to Terminology C125 for definitions of terms used in this test method.
4. Significance and Use
4.1 This test method is used to measure the effectiveness of bonding roller-compacted concrete to other roller-compacted
concrete or other hardened cementitious mixtures by using a point load test at the joint. 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
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.45 on
Roller-Compacted Concrete.
Current edition approved JulyApril 1, 2006.2011. Published August 2006.May 2011. Originally approved in 1993. Last previous edition approved in 20032006 as
C1245/C1245M–03.C1245/C1245M–06. DOI: 10.1520/C1245_C1245M-0611.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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: 1 ----------------------
C1245/C1245M – 11
mid-length of the specimen.Asplitting tensile stress
...
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