Standard Test Method for Compressive Strength of Architectural Cast Stone

SCOPE
1.1 This test method covers the sampling, preparation of specimens, and determination of the compressive strength of architectural cast stone.
1.2 This standard does not purport to address all of the safety problems, 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.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

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Publication Date
09-Jul-2002
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ASTM C1194-02 - Standard Test Method for Compressive Strength of Architectural Cast Stone
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1194 – 02
Standard Test Method for
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Compressive Strength of Architectural Cast Stone
This standard is issued under the fixed designation C 1194; 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 6. Sampling
1.1 This test method covers the sampling, preparation of 6.1 Select the sample to represent the cast stone under
specimens, and determination of the compressive strength of consideration. The sample may be selected by the purchaser or
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architectural cast stone. his authorized representative from each 500 ft (14 m ) of cast
1.2 This standard does not purport to address all of the stone. Select a sample of adequate size to permit the prepara-
safety concerns, if any, associated with its use. It is the tion of three compression test specimens.
responsibility of the user of this standard to establish appro-
7. Test Specimens
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. 7.1 For compression tests, take three specimens from each
sample. Cut specimens from the finished surface of the sample
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for to consist of one surface intended to be exposed to view and
five saw-cut surfaces, except for faced cast stone, cut speci-
information only.
mens through the faced surface to consist of approximately
2. Referenced Documents
equal parts of the facing material and the backup material.
2.1 ASTM Standards: 7.2 Cut test specimens from the sample with saws. The test
C 42 Test Method for Obtaining and Testing Drilled Cores specimens shall be 2-in. (50.8-mm) or 50-mm cubes. The
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and Sawed Beams of Concrete allowable size tolerance of the cubes shall be 6 ⁄8 in. (3.2 mm).
C 109 Test Method for Compressive Strength of Hydraulic 7.3 Measure the top and bottom of the bearing surfaces of
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Cement Mortars the test specimens to 0.01 in. (0.25 mm) and average the two
C 617 Practice for Capping Cylindrical Concrete Speci- bearing areas to obtain the compression area.
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mens
8. Conditioning
3. Terminology
8.1 For this test, oven dry specimens at a temperature of 100
3.1 Definitions: to 110°C (212 to 230°F) until the loss in mass is not more than
3.1.1 cast stone, n—an architectural precast concrete build- 0.1 % in 24 h of drying. Remove from the oven and allow to
ing unit intended to simulate natural cut stone. cool in room temperature for 4 to 6 h before testing for
compressive strength.
4. Significance and Use
9. Specimen Preparation
4.1 This test method is to be used in determining the
compressive strength of cast stone. Compressive strength is 9.1 Cap each specimen, after drying, using equipment,
one measure of resistance of cast stone to weathering and materials, and procedures that conform to those specified in
structural stress. Practice C 617. Capping material is required that will exceed
the compressive strength of the tested cubes. Form the cap by
5. Apparatus
spreading the capping material upon a capping plate and
5.1 Testing Machine—The testing machine shall conform to pressing the specimen firmly on it. Make the cap as thin as
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the requirements prescribed in Test Method C 109 unless
possible but not to exceed ⁄32 in. (2.4 mm).
otherwise indicated therein.
10. Procedure
10.1 Apply load through a spherical bearing block placed on
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This test method is under the jurisdiction of ASTM Committee C27 on Precast
top of the specimen in a vertical testing machine. The loading
Concrete Products and is the direct responsibility of Subcommittee C27.20 on
of homogenous specimens shall be parallel to the casting
Architectural and Structural Products.
Current edition approved July 10, 2002. Published August 2002. Last previous direction and of faced specimens shall be normal to the
edition C 1194 – 91(1995). Originally published as C 1194 – 91.
position in which the cast stone is laid in the wall (Fig. 1). The
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Annual Book of ASTM Standards, Vol 04.02.
area of the bearing block shall be the same, or slightly larger,
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Annual Book of ASTM Standards, Vol 04.01.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C1194–02
C 5 W/A (1)
where:
C = compressive strength of the specimen, psi (MPa),
W = maximum load, lbf (N), on the specimen at failu
...

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