ASTM C71-01a

Standard Terminology Relating to Refractories

SCOPE
1.1 This terminology covers terms particularly related to refractories and encompasses raw materials, manufacture, finished products, applications, and testing procedures.
1.2 When any of the definitions in this terminology are quoted or published out of context, editorially insert the limiting phrase "in refractories" after the dash following the term to properly limit the field of application of the term and definition.

General Information

• Status: Historical
• Publication Date: 09-Dec-2001
• ICS: 01.040.81 - Glass and ceramics industries (Vocabularies)
• ICS: 81.080 - Refractories
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.92 - The Joseph E. Kopanda Subcommittee for Editorial, Terminology and Classification

Relations

• Replaces: ASTM C71-01 - Standard Terminology Relating to Refractories
• Effective Date: 10-Dec-2001
• Replaced By: ASTM C71-07 - Standard Terminology Relating to Refractories
• Effective Date: 15-Dec-2007
• Referred By: ASTM C1548-02(2020) - Standard Test Method for Dynamic Young’s Modulus, Shear Modulus, and Poisson’s Ratio of Refractory Materials by Impulse Excitation of Vibration
• Effective Date: 10-Dec-2001
• Referred By: ASTM C1547-02(2022) - Standard Classification for Fusion-Cast Refractory Blocks and Shapes
• Effective Date: 10-Dec-2001
• Referred By: ASTM C1685-15(2021) - Standard Specification for Pneumatically Applied High-Temperature Fiber Thermal Insulation for Industrial Applications
• Effective Date: 10-Dec-2001
• Referred By: ASTM C24-09(2022) - Standard Test Method for Pyrometric Cone Equivalent (PCE) of Fireclay and High-Alumina Refractory Materials
• Effective Date: 10-Dec-2001
• Referred By: ASTM C455-07(2022) - Standard Classification of Chrome, Chrome-Magnesia, Magnesia-Chrome, and Magnesia Brick
• Effective Date: 10-Dec-2001
• Referred By: ASTM E1602-03(2017) - Standard Guide for Construction of Solid Fuel Burning Masonry Heaters
• Effective Date: 10-Dec-2001
• Referred By: ASTM C1445-13(2018) - Standard Test Method for Measuring Consistency of Castable Refractory Using a Flow Table
• Effective Date: 10-Dec-2001
• Referred By: ASTM C892-19 - Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
• Effective Date: 10-Dec-2001
• Referred By: ASTM C1656-13(2023) - Standard Guide for Measuring the Reactivity of Hydraulic Refractory Castables Using Exothermic Profile
• Effective Date: 10-Dec-2001

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
Designation:C 71–01a
Standard Terminology Relating to
1
Refractories
ThisstandardisissuedunderthefixeddesignationC71;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope to resolve differences and ensure commonality of usage,
particularly in the preparation of ASTM standards.
1.1 This terminology covers terms particularly related to
3.3 Although this terminology is intended to promote uni-
refractories and encompasses raw materials, manufacture,
formity in the usage of terms related to refractories, it can
finished products, applications, and testing procedures.
never be complete because new terms are constantly arising.
1.2 When any of the definitions in this terminology are
The existence of this terminology does not preclude the use or
quoted or published out of context, editorially insert the
misuse of any term in another context.
limiting phrase “in refractories” after the dash following the
term to properly limit the field of application of the term and
4. Terminology
definition.
4.1 Definitions:
2. Referenced Documents
abrasion of refractories, n—wearing away of refractory
2.1 ASTM Standards:
surfaces by the scouring action of moving solids.
C 24 TestMethodforPyrometricConeEquivalent(PCE)of
acid refractories, n— see refractories, acid.
2
Fireclay and High-Alumina Refractory Materials
alumina-chromia brick, n—a refractory brick, which may be
C 181 Test Method for Workability Index of Fireclay and
burned or unburned, manufactured predominantly of a mix-
2
High-Alumina Plastic Refractories
ture of a high-alumina raw material and chromic oxide
C 401 Classification of Alumina and Alumina-Silicate
(Cr O ), with the alumina (Al O ) content being 50 % or
2 3 2 3
2
Castable Refractories
greater by weight and with chromic oxide (Cr O ) predomi-
2 3
2
C 416 Classification of Silica Refractory Brick
nating by weight among the other constituent oxides.
C 456 Test Method for Hydration Resistance of Basic
angle of repose, n—the acute angle measured from the
2
Bricks and Shapes
horizontal to the slope of a cone-shaped pile of free-flowing
C 492 Test Method for Hydration of Granular Dead-Burned
material.
2
Refractory Dolomite
anthracite-coal-base carbon refractory, n—see carbon refrac-
C 860 Practices for Determining and Measuring Consis-
tory, anthracite-coal-base.
2
tency of Refractory Concretes
basic refractories, n— see refractories, basic.
C 909 Practice for Dimensions of a Modular Series of
bat, v—to reject or discard a brick or shape.
2
Refractory Brick and Shapes
binder, n—a substance added to a granular material to give it
workability and green or dry strength.
3. Significance and Use
bloating of refractories, v—substantial swelling produced by
3.1 This terminology ensures that terms peculiar to refrac-
a heat treatment that causes the formation of a vesicular
tories are adequately defined so that other standards in which
structure.
such terms are used can be understood and interpreted prop-
bond fireclay, n—see fireclay, plastic or bond.
erly.
burn, v—the heat treatment to which refractory materials are
3.2 This terminology is useful to those who are not conver-
subjected in the firing process.
sant with the terms related to refractories. However, it is also a
burning (firing) of refractories, v—the final heat treatment in
ready reference for those directly associated with refractories
a kiln to which refractory brick and shapes are subjected in
the process of manufacture for the purpose of developing
bond and other necessary physical and chemical properties.
1
calcine, calcines, n—refractory material, often fireclay, that
This terminology is under the jurisdiction of ASTM Committee C08 on
Refractories and is the direct responsibility of Subcommittee C08.92,The Joseph E.
has been heated to eliminate volatile constituents and to
Kopanda Subcommittee for Editorial and Terminology.
produce desired physical changes.
Current edition approved Dec. 10, 2001. Published January 2002. Originally
calcined refractory dolomite, n—see dolomite, calcined re-
published as C 71 – 27. Last previous edition C 71 – 01.
2
Annual Book of ASTM Standards, Vol 15.01. fractory.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C71
calcining of refractory materials, v—the heat treatment to resulting from a heat treatment that yields a product resistant
which raw refractory materials are subjected, preparatory to to atmospheric hydration or recombination with carbon
further processing or use, for the purpose of eliminating diox
...