ASTM C163-05(2010)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C163 − 05(Reapproved 2010)
Standard Practice for
Mixing Thermal Insulating Cement Samples
This standard is issued under the fixed designation C163; 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 5.3 Scales, accurate to within 0.5 oz (14.1 g) with a
minimum capacity of 15 lb (about 6.8 kg).
1.1 This practice covers mixing thermal insulating cement
samples with water in the preparation of specimens for use in 5.4 Water Container, suitable for holding approximately 2
all tests on the cement. gal (about 8 L) of water.
1.2 The values stated in inch-pound units are to be regarded 5.5 Mold, constructed of either wood or metal.
as standard. The values given in parentheses are mathematical
6. Mixing Water
conversions to SI units that are provided for information only
and are not considered standard.
6.1 The mixing water shall be equal in quality to that used
for domestic purposes. Its temperature shall be between 70 and
1.3 This standard does not purport to address all of the
75°F (21 and 24°C). The quantity used shall be that which
safety concerns, if any, associated with its use. It is the
gives the consistency as recommended by the manufacturer.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
7. Procedure
bility of regulatory limitations prior to use.
7.1 Test at least one specimen from each lot of cement
2. Referenced Documents
unless otherwise agreed upon between user and supplier or as
shown otherwise in a material specification.
2.1 ASTM Standards:
C168 Terminology Relating to Thermal Insulation
7.2 Weighthespecimen(atleast3lb(1.4kg))ofdrycement
and place it on a smooth, nonabsorbent, and corrosion-resistant
3. Terminology
surface.
3.1 Definitions:Terminology C168 shall be considered as
7.3 Form a crater in the center of the dry cement. Pour the
applying to the terms used in this practice.
mixing water slowly into the crater and determine the weight
used.
4. Significance and Use
7.4 Fold the material on the outer edge into the crater by
4.1 Insulatingcementmustbemixedwithwaterandmolded
means of the rectangular trowel.
to prepare for testing.
7.5 After the water has been in contact with the cement for
the period of time recommended by the manufacturer, mix
5. Apparatus
rapidly with the rectangular trowel until the entire batch is of
5.1 Mixing Surface or Pan, nonabsorbent and corrosion-
uniform consistency.
resistant surface or shallow pan approximately 3 ft (0.9 m)
7.6 Mold the cement specimen immediately after mixing or
square.
the time frame recommended by the manufacturer.
5.2 Trowels, 16-in. (about 400-mm) rectangular plasterer’s
trowel, and a 9-in. (about 230-mm) pointed trowel.
8. Preparation of Dried Specimens for Later Tests
8.1 Cover a piece of flat, heavy-gage metal with wax paper.
Place a flat mold 2 in. (51
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