ASTM C880/C880M-23
(Test Method)Standard Test Method for Flexural Strength of Dimension Stone
Standard Test Method for Flexural Strength of Dimension Stone
SIGNIFICANCE AND USE
4.1 This test method is useful in indicating the differences in flexural strength between the various dimension stones. This test method also provides one element in comparing stones of the same type.
SCOPE
1.1 This test method covers the procedure for determining the flexural strength of stone by use of a simple beam using quarter-point loading.
1.2 Stone tests shall be made when pertinent for the situation when the load is perpendicular to the bedding plane and when the load is parallel to the bedding plane.
1.3 As required, the flexural tests shall also be conducted under wet conditions.
1.4 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.
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C880/C880M − 23
Standard Test Method for
1
Flexural Strength of Dimension Stone
This standard is issued under the fixed designation C880/C880M; 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 C1799 Guide to Dimension Stone Test Specimen Sampling
and Preparation
1.1 This test method covers the procedure for determining
E2586 Practice for Calculating and Using Basic Statistics
the flexural strength of stone by use of a simple beam using
quarter-point loading.
3. Terminology
1.2 Stone tests shall be made when pertinent for the situa-
3.1 Definitions—All definitions are in accordance with Ter-
tion when the load is perpendicular to the bedding plane and
minology C119.
when the load is parallel to the bedding plane.
4. Significance and Use
1.3 As required, the flexural tests shall also be conducted
under wet conditions.
4.1 This test method is useful in indicating the differences in
flexural strength between the various dimension stones. This
1.4 The values stated in either SI units or inch-pound units
test method also provides one element in comparing stones of
are to be regarded separately as standard. The values stated in
the same type.
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
5. Apparatus
values from the two systems may result in non-conformance
with the standard. 5.1 Testing Machine (Fig. 1), conforming to the require-
ments of the applicable sections of Practices E4. The quarter-
1.5 This standard does not purport to address all of the
point loading method shall be used in making flexure tests of
safety concerns, if any, associated with its use. It is the
stone employing bearing blocks which will ensure that forces
responsibility of the user of this standard to establish appro-
applied to the beam will be vertical only and applied without
priate safety, health, and environmental practices and deter-
eccentricity. The apparatus should be capable of maintaining
mine the applicability of regulatory limitations prior to use.
the span length and distances between load-applying blocks
1.6 This international standard was developed in accor-
and support blocks constant within 60.05 in. [61 mm]. The
dance with internationally recognized principles on standard-
load should be capable of being applied at a uniform rate and
ization established in the Decision on Principles for the
in such a manner as to avoid shock.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6. Sampling
Barriers to Trade (TBT) Committee.
6.1 Select the sample to represent a true average of the type
or grade of stone under consideration and of the quality
2. Referenced Documents
supplied to the market under the type designation to be tested.
2
2.1 ASTM Standards:
The sample may be selected by the purchaser or his authorized
E4 Practices for Force Calibration and Verification of Test-
representative from the quarried stone or taken from the natural
ing Machines
ledge and shall be of adequate size to permit the preparation of
C119 Terminology Relating to Dimension Stone
the desired number of test specimens. When perceptible
variations occur, the purchaser may select as many samples as
are necessary for determining the variations in flexural
1
This test method is under the jurisdiction of ASTM Committee C18 on
strength.
Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test
NOTE 1—Refer to Guide C1799 for additional information on selecting,
Methods.
preparing, and conditioning test specimens.
Current edition approved Sept. 1, 2023. Published December 2023. Originally
ɛ1
approved in 1978. Last previous edition approved in 2018 as C880/C880M–18 .
7. Test Specimen
DOI: 10.1520/C0880_C0880M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.1 The test specimens shall measure 4 in. [100 mm] wide
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
by 1.25 in. [30 mm] thick by 15 in. [350 mm] long, with a span
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. as tested of 12.5 in. [300 mm]. The sides of the specimen shall
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C880/C880M − 23
NOTE
...
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.
´1
Designation: C880/C880M − 18 C880/C880M − 23
Standard Test Method for
1
Flexural Strength of Dimension Stone
This standard is issued under the fixed designation C880/C880M; 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
ε NOTE—In 9.2 the value in brackets was corrected editorially from [4 MPa] to [4 MPa ⁄min] in May 2022.
1. Scope
1.1 This test method covers the procedure for determining the flexural strength of stone by use of a simple beam using
quarter-point loading.
1.2 Stone tests shall be made when pertinent for the situation when the load is perpendicular to the bedding plane and when the
load is parallel to the bedding plane.
1.3 As required, the flexural tests shall also be conducted under wet conditions.
1.4 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.
1.5 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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E4 Practices for Force Calibration and Verification of Testing Machines
C119 Terminology Relating to Dimension Stone
C1799 Guide to Dimension Stone Test Specimen Sampling and Preparation
E2586 Practice for Calculating and Using Basic Statistics
3. Terminology
3.1 Definitions—All definitions are in accordance with Terminology C119.
1
This test method is under the jurisdiction of ASTM Committee C18 on Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test Methods.
Current edition approved Oct. 1, 2018Sept. 1, 2023. Published October 2018December 2023. Originally approved in 1978. Last previous edition approved in 20152018
ɛ1
as C880C880/C880M–15.–18 . DOI: 10.1520/C0880_C0880M-18E01.10.1520/C0880_C0880M-23.
2
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 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C880/C880M − 23
4. Significance and Use
4.1 This test method is useful in indicating the differences in flexural strength between the various dimension stones. This test
method also provides one element in comparing stones of the same type.
5. Apparatus
5.1 Testing Machine (Fig. 1), conforming to the requirements of the applicable sections of Practices E4. The quarter-point loading
method shall be used in making flexure tests of stone employing bearing blocks which will ensure that forces applied to the beam
will be vertical only and applied without eccentricity. The apparatus should be capable of maintaining the span length and distances
between load-applying blocks and support blocks constant within 60.05 in. [61 mm]. The load should be capable of being applied
at a uniform rate and in such a manner as to avoid shock.
6. Sampling
6.1 Select the sample to represent a true average of the type or grade of stone under consideration and of the quality supplied to
the market under the type designation to be tested. The sample may be selected by the purchaser or his authorized representative
from the quarried stone or taken from the natural ledge and shall be of adequate size to permit the preparation of the desired number
of test specimens. When perceptible variations occur, the purchaser may select as many samples as are necessary for determining
the variations in flexural strength.
NOTE 1—Refer to Guide C1799
...
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