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ASTM C704-01e1

(Test Method)

Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature

Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature

SIGNIFICANCE AND USE
This test method measures the relative abrasion resistance of various refractory samples under standard conditions at room temperature.
The abrasion resistance of a refractory material provides an indication of its suitability for service in abrasion or erosive environments.
The results obtained by this test method could be different than those obtained in service because of the different conditions encountered.
SCOPE
1.1 This test method covers the determination of relative abrasion resistance of refractory brick at room temperature. This test method can also be applied to castable refractories (see Metric Dimensions C861 and Practice C865) and plastic refractories (see Practice C1054).
1.2 The values stated in SI 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 concerns, 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.

General Information

Status
Historical
Publication Date
09-Dec-2001
ICS
81.080 - Refractories
Technical Committee
C08 - Refractories
Drafting Committee
C08.03 - Physical Properties
Current Stage
Ref Project

Relations

Replaces
ASTM C704-01 - Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature
Effective Date
10-Dec-2001
Replaced By
ASTM C704-07 - Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature
Effective Date
01-Oct-2007

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ASTM C704-01e1 - Standard Test Method for Abrasion Resistance of Refractory Materials at Room Temperature
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
e1
Designation: C 704 – 01
Standard Test Method for
Abrasion Resistance of Refractory Materials at Room
1
Temperature
This standard is issued under the fixed designation C 704; 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
e NOTE—Adjunct references were corrected editorially in April 2006.
3
1. Scope Abrasion Tester (1 dwg)
1.1 This test method covers the determination of relative
3. Summary of Test Method
abrasion resistance of refractory brick at room temperature.
3.1 This test method measures the volume of material in
This test method can also be applied to castable refractories
cubic centimetres abraded from a flat surface at a right angle to
(see Metric Dimensions C 861 and Practice C 865) and plastic
a nozzle through which 1000 g of size-graded silicon carbide
refractories (see Practice C 1054).
grain is blasted by air at 448 kPa (65 psi).
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are provided for
4. Significance and Use
information only.
4.1 This test method measures the relative abrasion resis-
1.3 This standard does not purport to address all of the
tance of various refractory samples under standard conditions
safety concerns, if any, associated with its use. It is the
at room temperature.
responsibility of the user of this standard to establish appro-
4.2 The abrasion resistance of a refractory material provides
priate safety and health practices and determine the applica-
an indication of its suitability for service in abrasion or erosive
bility of regulatory limitations prior to use.
environments.
4.3 The results obtained by this test method could be
2. Referenced Documents
2
different than those obtained in service because of the different
2.1 ASTM Standards:
conditions encountered.
C 134 Test Methods for Size, Dimensional Measurements,
and Bulk Density of Refractory Brick and Insulating
5. Apparatus
Firebrick
5.1 Abrasion Tester, used for measuring the abrasion resis-
C 179 Test Method for Drying and Firing Linear Change of
tance of refractory specimens, consisting of the following (Fig.
Refractory Plastic and Ramming Mix Specimens
1 and Fig. 2):
C 861 Practice for Determining Metric Dimensions of Stan-
4
5.1.1 Blast Gun , modified for this equipment as shown in
dard Series Refractory Brick and Shapes
Fig. 3.
C 862 Practice for Preparing Refractory Concrete Speci-
5.1.2 Nozzle—Apiece of glass tubing is used to replace the
mens by Casting
steel nozzle supplied with the sand-blast gun to permit control
C 865 Practice for Firing Refractory Concrete Specimens
of nozzle size through nozzle replacement after each determi-
C 1054 Practice for Pressing and Drying Refractory Plastic
1 1
nation. Flint-glass tubing, 115 mm (4 ⁄2 in.) long, 7 mm ( ⁄4 in.)
and Ramming Mix Specimens
1
in outside diameter, with a nominal 1.1 mm ( ⁄16 in.) wall, is
2.2 ASTM Adjuncts:
used. This piece of glass tubing is held in place by a 70 mm
3
(2 ⁄4 in.) long piece of stainless steel tubing. The I.D. (inside
1
diameter) of this tubing, which should be flared at one end to
This test method is under the jurisdiction of ASTM Committee C08 on
Refractories and is the direct responsibility of Subcommittee C08.03 on Physical
Tests and Properties.
3
Current edition approved Dec. 10, 2001. Published January 2002. Originally
Detailed prints for the construction of the test chamber are available at a
published as C 704 – 72. Last previous edition C 704 – 99.
nominal cost from ASTM Headquarters. Request ADJC0704. An acceptable test
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
chamber can be made from a weatherproof electrical switch box such as a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Wiegmann B 20167 continuous hinge box.
4
Standards volume information, refer to the standard’s Document Summary page on
The sand blast gun shown in Fig. 3, available from Leitch and Company, 971
the ASTM website.
Howard St., San Francisco, CA, has been found suitable for use in this test method.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
e1
C 704–01
NOTE 1—Identified by number in this figure are: (1) cabinet pressure manometer, (2) dust collector vent, (3) test pressure gage, (4) grit feed tunnel,
and (5) vacuum gage.
FIG. 1 Abrasion Tester
3
sit snugly inside a 9.53 mm ( ⁄8 in.) tubing nut, should be 7.15 end of the glass tube, through which the abrading media enters
9
mm ( ⁄32 in.). The O.D.
...

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3.1 The oxidation of silicon carbide refractories at elevated temperatures is an important consideration in the application of these refractories. The product of oxidation is amorphous silica or cristobalite, depending upon the temperature at which oxidation takes place. This oxide formation is associated with expansion and degradation of strength. The quantity of water vapor in the atmosphere greatly affects the rate of oxidation.  
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