ASTM C163-88(1997)
(Practice)Standard Practice for Mixing Thermal Insulating Cement Samples
Standard Practice for Mixing Thermal Insulating Cement Samples
SCOPE
1.1 This practice covers mixing thermal insulating cement samples with water in the preparation of specimens for use in all tests on the cement.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 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.
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Designation:C163 – 88 (Reapproved 1997)
Standard Practice for
Mixing Thermal Insulating Cement Samples
This standard is issued under the fixed designation C 163; 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 4.5 Mold, constructed of either wood or metal.
1.1 This practice covers mixing thermal insulating cement
5. Mixing Water
samples with water in the preparation of specimens for use in
5.1 The mixing water shall be equal in quality to that used
all tests on the cement.
for domestic purposes. Its temperature shall be between 70 and
1.2 The values stated in inch-pound units are to be regarded
75°F (21 and 24°C). The quantity used shall be that which
as the standard. The values given in parentheses are provided
gives the required consistency determined in accordance with
for information only.
Practice C 405.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
6. Procedure
responsibility of the user of this standard to establish appro-
6.1 Test at least one specimen from each lot of cement
priate safety and health practices and determine the applica-
unless otherwise agreed upon between user and supplier or as
bility of regulatory limitations prior to use.
shown otherwise in a material specification.
6.2 Weighthespecimen(atleast3lb(1.4kg))ofdrycement
2. Referenced Documents
and place it on a smooth, nonabsorbent, and corrosion-resistant
2.1 ASTM Standards:
surface.
C 168 Terminology Relating to Thermal Insulating Materi-
6.3 Form a crater in the center of the dry cement. Pour the
als
mixing water slowly into the crater and determine the weight
C 405 Practice for Estimating Consistency of Wet-Mixed
used.
Thermal Insulating Cement
6.4 Fold the material on the outer edge into the crater by
3. Terminology means of the rectangular trowel.
6.5 After the water has been in contact with the cement for
3.1 Definitions: Terminology C 168 shall be considered as
the period of time recommended by the manufacturer, mix
applying to the terms used in this practice.
rapidly with the rectangular trowel until the entire batch is of
4. Apparatus uniform consistency.
6.6 Mold the cement specimen immediately after mixing or
4.1 Mixing Surface or Pan, nonabsorbent and corrosion-
after the lapse of such period of time as may be recommended
resistant surface or shallow pan approximately 3 ft (0.9 m)
by the manufacturer.
square.
4.2 Trowels, 16-in. (about 400-mm) rectangular plasterer’s
7. Preparation of Dried Specimens for Later Tests
trowel, and a 9-in. (about 230-mm) pointed trowel.
7.1 Cover a piece of flat, heavy-gage metal with wax paper.
4.3 Scales, accurate to withi
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