ASTM C179-85(1999)

Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens

SCOPE
1.1 This test method covers the determination of the drying shrinkage and of the combined drying and linear change of ramming and plastic refractories.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are provided for information only.  
1.3  This standard does not purport to address all of the safety problems 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-1998
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.09 - Monolithics

Relations

• Replaced By: ASTM C179-85(1999)e1 - Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens
• Effective Date: 01-Jan-1999
• Referred By: ASTM C704/C704M-15(2022)e1 - Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature
• Effective Date: 01-Jan-1999
• Referred By: ASTM C113-14(2019) - Standard Test Method for Reheat Change of Refractory Brick
• Effective Date: 01-Jan-1999
• Referred By: ASTM C1054-18 - Standard Practice for Pressing and Drying Refractory Plastic and Ramming Mix Specimens
• Effective Date: 01-Jan-1999
• Referred By: ASTM C1419-14(2020) - Standard Test Method for Sonic Velocity in Refractory Materials at Room Temperature and Its Use in Obtaining an Approximate Young's Modulus
• Effective Date: 01-Jan-1999

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 179 – 85 (Reapproved 1999)
Standard Test Method for
Drying and Firing Linear Change of Refractory Plastic and
Ramming Mix Specimens
This standard is issued under the fixed designation C 179; 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. Apparatus
1.1 This test method covers the determination of the drying 4.1 Kiln, electric or gas type, of such design that the flame,
shrinkage and of the combined drying and linear change of as coming directly from the burner, cannot impinge upon the
ramming and plastic refractories. test specimens.
1.2 The values stated in inch-pound units are to be regarded 4.2 Measuring Device , a 12-in. (305-mm), graduated in
as the standard. The values in parentheses are provided for 0.02-in. (0.5-mm) increments. A hooked rule is convenient to
information only. use, and a suitable type is described in Test Methods C 134.
1.3 This standard does not purport to address all of the
5. Test Specimens
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- 5.1 Number of Specimens—A minimum of six specimens
molded from the sample (see Note 1) of plastic refractory will
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. be required. Half of the specimens shall be used for the test and
the other half used as supporting pieces during the kiln heat
2. Referenced Documents
treatment.
2.1 ASTM Standards:
NOTE 1—For pressing and drying the specimens see Practice C 1054.
C 113 Test Method for Reheat Change of Refractory Brick
5.2 Measurement of Specimens—Using the measuring de-
C 134 Test Methods for Size, Dimensional Measurements,
vice, measure the bar for all dimensions to the nearest 0.02-in.
and Bulk Density of Refractory Brick and Insulating
2 (0.5-mm). Label and make reference marks to indicate the
Firebrick
exact length measurement points. Caution should be taken as
C 181 Test Method for Workability Index of Fireclay and
deformation of the specimens may be caused by handling.
High-Alumina Plastic Refractories
5.3 Drying of Specimens—Dry specimens should be dried
C 1054 Practice for Pressing and Drying Refractory Plastic
as stated in Practice C 1054, 6.6 (6.6.2 for phosphate-bonded
and Ramming Mix Specimens
material, 6.6.3 for clay-bonded and air-setting materials).
3. Significance and Use 5.4 Measuring Dried Specimens—Measure specimens as
stated in 5.2.
3.1 This test method is useful in quantitatively rating or
ranking both ramming and plastic refractories by their linear
6. Procedure
stability after heating.
6.1 Placing Specimens in Kiln—Place the dried specimens
3.2 This test method is also useful for determining whether
in the kiln in accordance with Test Method C 113, with the
a ramming or plastic refractory can be used in a specified
exception that the supporting brick shall consist of the three
application based on linear change criteria.
plastic refractory brick prepared for that purpose.
3.3 This test method excludes basic and carbon bearing
6.2 Temperature Measurements—Conduct temperature
materials.
measurements in accordance with Test Method C 113.
3.4 T
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