ASTM C629-99
(Specification)Standard Specification for Slate Dimension Stone
Standard Specification for Slate Dimension Stone
SCOPE
1.1 This specification covers the material characteristics, physical requirements, and sampling appropriate to the selection of slate for general building and structural purposes.
1.2 Dimension slate shall include stone that is sawed, cut, split, or otherwise finished or shaped, and shall specifically exclude molded, cast, or otherwise artificially aggregated units composed of fragments, and also crushed and broken stone.
1.3 It specifically excludes roofing slate (see ASTM Specification C 406, for Roofing Slate), and slate for industrial uses.
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Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.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 629 – 99
Standard Specification for
Slate Dimension Stone
This standard is issued under the fixed designation C 629; 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.
This standard has been approved for use by agencies of the Department of Defense.
TABLE 1 Physical Requirements
1. Scope
Test Test
1.1 This specification covers the material characteristics,
Property Classifications
Requirements Method(s)
physical requirements, and sampling appropriate to the selec-
Absorption, max,% 0.25 I Exterior C 121
tion of slate for general building and structural purposes.
0.45 II Interior
1.2 Dimension slate shall include stone that is sawed, cut,
Modulus of rupture,
min, psi (MPa):
split, or otherwise finished or shaped, and shall specifically
Across grain 9000 (62.1) I Exterior C 120
exclude molded, cast, or otherwise artificially aggregated units
7200 (49.6) II Interior
composed of fragments, and also crushed and broken stone.
Along grain 7200 (49.6) I Exterior
5500 (37.9) II Interior
1.3 It specifically excludes roofing slate (see Specification
Abrasion resistance, 8.0 I Exterior C 241/C
C 406) and slate for industrial uses.
aA,B,C
min, H 8.0 II Interior
2. Referenced Documents
Acid resistance, max, 0.015 (0.38) I Exterior C 217
in. (mm) 0.025 (0.64) II Interior
2.1 ASTM Standards:
A
2 Pertains only to stone subject to foot traffic.
C 119 Terminology Relating to Dimension Stone
B
The supplier of the No. 60 Alundum abrasive, Norton, has indicated that the
C 120 Methods of Flexure Testing of Slate (Modulus of
formula for Norton treatment 138S has been changed. The new abrasive is
currrently more aggressive, resulting in lower abrasive hardness values (H ) than
Rupture, Modulus of Elasticity) a
2 when the standard was initially established. As such, care should be taken when
C 121 Test Method for Water Absorption of Slate
interpreting H values from tests using the new abrasive, particularly with regard to
a
C 217 Test Method for Weather Resistance of Slate
current ASTM stone standard specification requirements for abrasion resistance,
which were developed when the original abrasive was still in use. Committee C-18
C 241 Test Method for Abrasion Resistance of Stone Sub-
is actively studying alternatives to address this issue.
jected to Foot Traffic
C
Abrasion Resistance Test Method C 1353 will eventually replace Test Method
C 406 Specification for Roofing Slate
C 241 and it is not necessary to perform both tests. Availability of the proper
equipment and materials by the testing laboratory may determine which test is
C 1353 Test Method Using the Taber Abraser for Abrasion
performed.
Resistanc
...
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