ASTM C163-2005(2016) Standard Practice for Mixing Thermal Insulating Cement Samples《混合绝热水泥试样的标准实施规程》.pdf
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1、Designation: C163 05 (Reapproved 2016)Standard Practice forMixing Thermal Insulating Cement Samples1This standard is issued under the fixed designation C163; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision
2、. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This practice covers mixing thermal insulating cementsamples with water in the preparation of specimens for use inall tests on the
3、cement.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns, if an
4、y, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal Insulation3.
5、Terminology3.1 Definitions:Terminology C168 shall be considered asapplying to the terms used in this practice.4. Significance and Use4.1 Insulating cement must be mixed with water and moldedto prepare for testing.5. Apparatus5.1 Mixing Surface or Pan, nonabsorbent and corrosion-resistant surface or
6、shallow pan approximately 3 ft (0.9 m)square.5.2 Trowels, 16-in. (about 400-mm) rectangular plastererstrowel, and a 9-in. (about 230-mm) pointed trowel.5.3 Scales, accurate to within 0.5 oz (14.1 g) with aminimum capacity of 15 lb (about 6.8 kg).5.4 Water Container, suitable for holding approximatel
7、y 2gal (about 8 L) of water.5.5 Mold, constructed of either wood or metal.6. Mixing Water6.1 The mixing water shall be equal in quality to that usedfor domestic purposes. Its temperature shall be between 70 and75F (21 and 24C). The quantity used shall be that whichgives the consistency as recommende
8、d by the manufacturer.7. Procedure7.1 Test at least one specimen from each lot of cementunless otherwise agreed upon between user and supplier or asshown otherwise in a material specification.7.2 Weigh the specimen (at least 3 lb (1.4 kg) of dry cementand place it on a smooth, nonabsorbent, and corr
9、osion-resistantsurface.7.3 Form a crater in the center of the dry cement. Pour themixing water slowly into the crater and determine the weightused.7.4 Fold the material on the outer edge into the crater bymeans of the rectangular trowel.7.5 After the water has been in contact with the cement forthe
10、period of time recommended by the manufacturer, mixrapidly with the rectangular trowel until the entire batch is ofuniform consistency.7.6 Mold the cement specimen immediately after mixing orthe time frame recommended by the manufacturer.8. Preparation of Dried Specimens for Later Tests8.1 Cover a p
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