ASTM C704-07
(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
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, Practice C 861 and Practice C 865) and plastic refractories (see Practice C 1054).
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.
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Designation: C 704 – 07
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.
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, Practice C 861 and Practice C 865)
a nozzle through which 1000 g of size-graded silicon carbide
and plastic 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. Interferences (Factors known to Affect Results)
Firebrick
5.1 During development, a ruggedness test was performed
C 179 Test Method for Drying and Firing Linear Change of
1 1 1
using 114 by 114 by 12.7 mm (4 ⁄2 by 4 ⁄2 by ⁄2 in.) float glass
Refractory Plastic and Ramming Mix Specimens
plates conforming to Specification C 1036. Several factors
C 861 Practice for Determining Metric Dimensions of Stan-
werefoundtocausestatisticallysignificanteffectsonmeasured
dard Series Refractory Brick and Shapes
4
results.
C 862 Practice for Preparing Refractory Concrete Speci-
5.1.1 Nozzle Tube Inside Diameter—variation in the inside
mens by Casting
diameter of the flint glass nozzle tube statistically affected the
C 865 Practice for Firing Refractory Concrete Specimens
abrasion values obtained on the glass plate. Ideal glass tube
C 1036 Specification for Flat Glass
inside diameter is 4.8mm. Glass tube lots purchased as 7 mm
C 1054 Practice for Pressing and Drying Refractory Plastic
outside diameter tube with a nominal 1.1 mm wall thickness
and Ramming Mix Specimens
can have inside diameters ranging from 4.6 mm to 5.0 mm. For
2.2 ASTM Adjuncts:
the ruggedness test, flint glass tube inside diameters of 4.7 mm
and 4.9 mm were used. The statistically significant effect of
1
This test method is under the jurisdiction of ASTM Committee C08 on
this small tube inside diameter variation must be taken into
Refractories and is the direct responsibility of Subcommittee C08.03 on Physical
Properties.
Current edition approved Oct. 1, 2007. Published November 2007. Originally
3
published approved in 1972. Last previous edition approved in 2001 as C 704 – 01 Detailed prints for the construction of the test chamber are available at a
e1 . nominal cost from ASTM International Headquarters. Order Adjunct No.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or ADJC0704.An acceptable test chamber can be made from a weatherproof electrical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM switch box.
4
Standards volume information, refer to the standard’s Document Summary page on Supporting data have been filed at ASTM International Headquarters and may
the ASTM website. be obtained by requesting Research Report RR: C08–1019 .
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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C 704–07
consideration and all nozzle tube should be individually (see 8.6) will be unattainable. The glass tube is then positioned
measured and chosen to conform to a specified 4.8 mm inside at a distance of 2 mm (0.08 in.) from the air-generator nozzle.
diameter. This is done by using a brass rod, 4.
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
e1
Designation:C 704–01 Designation: C 704 – 07
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.
1. 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, Practice C 861 and Practice C 865) and plastic
refractories (see Practice C 1054).
1.2 ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareprovidedforinformation
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C 134 Test Methods for Size, Dimensional Measurements, and Bulk Density of Refractory Brick and Insulating Firebrick
C 179 Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens
C 861 Practice for Determining Metric Dimensions of Standard Series Refractory Brick and Shapes
C 862 Practice for Preparing Refractory Concrete Specimens by Casting
C 865 Practice for Firing Refractory Concrete Specimens
C 1036 Specification for Flat Glass
C 1054 Practice for Pressing and Drying Refractory Plastic and Ramming Mix Specimens
2.2 ASTM Adjuncts:
3
Abrasion Tester (1 dwg)
3. Summary of Test Method
3.1 Thistestmethodmeasuresthevolumeofmaterialincubiccentimetresabradedfromaflatsurfaceatarightangletoanozzle
through which 1000 g of size-graded silicon carbide grain is blasted by air at 448 kPa (65 psi).
4. Significance and Use
4.1 This test method measures the relative abrasion resistance of various refractory samples under standard conditions at room
temperature.
4.2 The abrasion resistance of a refractory material provides an indication of its suitability for service in abrasion or erosive
environments.
4.3 The results obtained by this test method could be different than those obtained in service because of the different conditions
encountered.
1
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.
Current edition approved Dec. 10, 2001. Published January 2002. Originally published as C704–72. Last previous edition C704–99.
1
This test method is under the jurisdiction of ASTM Committee C08 on Refractories and is the direct responsibility of Subcommittee C08.03 on Physical Properties .
e1
Current edition approved Oct. 1, 2007. Published November 2007. Originally published approved in 1972. Last previous edition approved in 2001 as C 704–01 .
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Detailed prints for the construction of the test chamber are available at a nominal cost fromASTM International Headquarters. Request OrderAdjunct No.ADJC0704.
An acceptable test chamber can be made from a weatherproof electrical switch box such as a Wiegmann B20167 continuous hinge box.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C 704–07
5. Interferences (Factors known to Affect Results)
1 1 1
5.1 Duringdevelopment,aruggednesstestwasperformedusing114by114by12.7mm(4 ⁄2by4 ⁄2by ⁄2in.)floatglassplates
4
conforming to Specification C 1036. Several factors were found to cause statistically significant effects on measured results.
5.1.1 Nozzle Tube Inside Diameter—variation in the inside diameter of the flint glass nozzle tube statistically affected the
abrasion values obtained on the glass plate. Ideal glass tube inside diameter is 4.8mm. Glass tube lots purchased as 7 mm outside
diametertubewithanominal1.1mmwallthicknesscanhaveinsidediametersrangi
...
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