ASTM C1352-96

Standard Test Method for Flexural Modulus of Elasticity of Dimension Stone

SCOPE
1.1 This test method covers the procedure for determining the flexural modulus of elasticity of stone by using a simple beam with quarter-point loading.
1.2 Stone tests may be made with load applied perpendicular to the bedding plane or rift and with load applied parallel to the bedding plane or rift.
1.3 Stone tests may be made for wet and dry specimen conditions.
1.4 The specifier of the test shall determine which conditions shall be used.
1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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

• Status: Historical
• Publication Date: 09-Sep-1996
• Technical Committee: C18 - Dimension Stone
• Drafting Committee: C18.01 - Test Methods

Relations

• Replaced By: ASTM C1352-96(2002) - Standard Test Method for Flexural Modulus of Elasticity of Dimension Stone
• Effective Date: 10-Sep-1996

Standards Content (Sample)

Designation: C 1352 – 96
Standard Test Method for
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Flexural Modulus of Elasticity of Dimension Stone
This standard is issued under the fixed designation C 1352; 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 elasticity between various dimension stones and stones of the
same type in different loading directions (parallel and perpen-
1.1 This test method covers the procedure for determining
dicular to rift or bedding planes).
the flexural modulus of elasticity of stone by using a simple
beam with quarter-point loading.
5. Apparatus
1.2 Stone tests may be made with load applied perpendicu-
5.1 Testing Machine (see Fig. 1), conforming to the require-
lar to the bedding plane or rift and with load applied parallel to
ments of the applicable sections of Practices E 4. The quarter-
the bedding plane or rift.
point loading method shall be used in making flexure tests of
1.3 Stone tests may be made for wet and dry specimen
stone employing bearing blocks that will ensure that forces
conditions.
applied to the beam will be vertical only and applied without
1.4 The specifier of the test shall determine which condi-
eccentricity. The apparatus should be capable of maintaining
tions shall be used.
the span length and distances between load-applying blocks
1.5 The values stated in SI units are to be regarded as the
and support blocks constant within 6 1.3 mm (6 0.05 in.). The
standard. The values given in parentheses are for information
load should be capable of being applied at a uniform rate and
only.
in such a manner as to avoid shock.
1.6 This standard does not purport to address all of the
5.2 Deflection Gages, capable of reading to 0.002 mm
safety concerns, if any, associated with its use. It is the
(0.0001 in.) shall be used to measure mid-span deflections at
responsibility of the user of this standard to establish appro-
the two free edges and support deflections at each end.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
6. Test Specimens
2. Referenced Documents 6.1 The test specimens shall measure 100 mm (4 in.) wide
by 32 mm (1.25 in.) thick by 380 mm (15 in.) long with a span
2.1 ASTM Standards:
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as tested of 320 mm (12.5 in.). The sides of the specimens shall
C 119 Terminology Relating to Dimension Stone
be at right angles with the top and bottom. The specimens shall
C 880 Test Method for Flexural Strength of Dimension
2
have a fine abrasive finish on the planes perpendicular to the
Stone
3 load and a fine saw finish on the other four planes. The
E 4 Practices for Force Verification of Testing Machines
dimensions of the specimen shall be measured and recorded to
3. Terminology the nearest 0.2 mm (0.01 in.). A minimum of five specimens
shall be tested for each condition of test. The average value
3.1 Definition—For definitions of terms used in this test
calculated from plots of the test results is reported as the
method, refer to Terminology C 119.
flexural modulus of elasticity for that condition.
3.2 Definitions of Terms Specific to This Standard:
6.2 Where the job thickness has been set (the thickness of
3.2.1 modulus of elasticity, n—stress per unit strain, also
the stone panels for the project has been established), it is often
known as Young’s Modulus.
requested to perform flexural modulus of elasticity tests at the
4. Significance and Use job thickness. The following shall govern the specimen size
where it is requested to test at the job thickness, and the job
4.1 This test method is useful for providing engineering
thickness is other than 32 mm (1.25 in.). The span as tested
values for stress and deflection analysis of stone panels. It is
shall be ten times the thickness. The specimen lengths shall be
also useful in indicating the differences in flexural modulus of
not less than 50 mm (2 in.) and not more than 100 mm (4 in.)
greater than the span as tested. Where the thickness is less than
70 mm (2.67 in.), the width of the specimen shall be 100 mm
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This test method is under the jurisdiction of ASTM Committee C-18 on
(4 in.). Where the thickness is greater than 70 mm (2.67 in.) the
Dimension Stone and is the direct responsibility of Subcommittee C18.01 on Test
Methods. width shall be 1.5 times the thickness. Where the thickness is
Current edition approved Sept. 10, 1996. Published November 1996.
other than 32 mm (1.25 in.) and the specimen size is in
2
Annual Book of ASTM Standards, Vol 04.07.
3
Annual Book of ASTM Standards, Vol 03.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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C 1352
FIG. 1 Diagrammatic View of a Suitable Apparatus for Flexural Modulus of Elasticity of Stone Test
accordance w
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