ASTM C880-06
(Test Method)Standard Test Method for Flexural Strength of Dimension Stone
Standard Test Method for Flexural Strength of Dimension Stone
SIGNIFICANCE AND USE
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 inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
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Designation:C880–06
Standard Test Method for
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Flexural Strength of Dimension Stone
This standard is issued under the fixed designation C880; 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 (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope 5. Apparatus
1.1 This test method covers the procedure for determining 5.1 Testing Machine (Fig. 1), conforming to the require-
the flexural strength of stone by use of a simple beam using ments of the applicable sections of Practices E4. The quarter-
quarter-point loading. point loading method shall be used in making flexure tests of
1.2 Stone tests shall be made when pertinent for the situa- stone employing bearing blocks which will ensure that forces
tion when the load is perpendicular to the bedding plane and applied to the beam will be vertical only and applied without
when the load is parallel to the bedding plane. eccentricity. The apparatus should be capable of maintaining
1.3 As required, the flexural tests shall also be conducted the span length and distances between load-applying blocks
under wet conditions. and support blocks constant within 61.3 mm (60.05 in.). The
1.4 The values stated in inch-pound units are to be regarded load should be capable of being applied at a uniform rate and
as the standard. The values given in parentheses are for in such a manner as to avoid shock.
information only.
6. Sampling
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 6.1 Select the sample to represent a true average of the type
or grade of stone under consideration and of the quality
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- supplied to the market under the type designation to be tested.
The sample may be selected by the purchaser or his authorized
bility of regulatory limitations prior to use.
representativefromthequarriedstoneortakenfromthenatural
2. Referenced Documents
ledge and shall be of adequate size to permit the preparation of
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2.1 ASTM Standards: the desired number of test specimens. When perceptible
E4 Practices for Force Verification of Testing Machines variations occur, the purchaser may select as many samples as
C119 Terminology Relating to Dimension Stone are necessary for determining the variations in flexural
strength.
3. Terminology
7. Test Specimen
3.1 Definitions—All definitions are in accordance with
Terminology C119. 7.1 The test specimens shall measure 102 mm (4 in.) wide
by 32 mm (1.25 in.) thick by 381 mm (15 in.) long, with a span
4. Significance and Use
as tested of 318 mm (12.5 in.). The sides of the specimen shall
4.1 Thistestmethodisusefulinindicatingthedifferencesin be at right angles with the top and bottom.The specimens shall
flexural strength between the various dimension stones. This
have a fine abrasive finish on the planes perpendicular to the
test method also provides one element in comparing stones of load and a fine saw finish on the other four planes. The
the same type.
dimensions of the specimen shall be measured and recorded to
the nearest 0.3 mm (0.01 in.). A minimum of five specimens
shall be tested for each condition of test. The average value of
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This test method is under the jurisdiction of ASTM Committee C18 on the test results is reported as the flexural strength of the stone.
Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test
7.2 Where this test method is specified in the physical
Methods.
requirements of an ASTM C-18 Standard Specification for a
Current edition approved Feb. 1, 2006. Published February 2006. Originally
dimension stone, the test specimens shall meet the require-
approved in 1978. Last previous edition approved in 1998 as C880 – 98. DOI:
10.1520/C0880-06.
ments under 7.1.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
7.3 Where the job thickness has been set (for example, the
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
thickness of the stone panels for the project has been estab-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. lished), it is often requested to perform flexure tests at the job
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C880–06
NOTE—Apparatus may be used inverted.
FIG. 1 Diagrammatic View of a Suitable Apparatus for Flexure Test of Stone
thickness. The following shall govern the specimen size where the same weight.After rem
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