ASTM C1655-06

Standard Classification of Fireclay and High-Alumina Mortars

SIGNIFICANCE AND USE
Refractory mortars are used for laying, bonding and coating refractory brick. They become an integral part of the resulting refractory lining or structure. Therefore, such mortars should be selected in order to closely match those of the brick. A classification system is provided for use in producing, purchasing and using different types of refractory mortars.
SCOPE
1.1 This classification pertains to fireclay and high-alumina refractory mortars that can be trowelled, dipped or painted to join or coat refractory bricks and shapes.
1.2 This standard does not purport to address 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.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

General Information

• Status: Historical
• Publication Date: 30-Nov-2006
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C08 - Refractories
• Drafting Committee: C08.92 - The Joseph E. Kopanda Subcommittee for Editorial, Terminology and Classification

Relations

• Replaced By: ASTM C1655-06(2011) - Standard Classification of Fireclay and High-Alumina Mortars
• Effective Date: 01-Jul-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C1655 – 06
Standard Classification of
Fireclay and High-Alumina Mortars
This standard is issued under the fixed designation C1655; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4.3 Chemically Bonded Mortars – Mortars in this class
cannot be said to truly airset, since they require some heating
1.1 This classification pertains to fireclay and high-alumina
to initiate hardening. However, they harden at temperatures
refractory mortars that can be trowelled, dipped or painted to
lower than those required for ceramic bonding. A common
join or coat refractory bricks and shapes.
example of a chemically bonded mortar is a phosphate-bonded
1.2 This standard does not purport to address safety con-
mortar.
cerns, if any, associated with its use. It is the responsibility of
4.4 Each of the above classes of mortar are further classified
the user of this standard to establish appropriate safety and
by the condition in which they are supplied:
health practices and determine the applicability of regulatory
4.4.1 Dry Mortars – This class is supplied dry and must be
limitations prior to use.
mixed with water prior to use.
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
4.4.2 WetMortars – This class is supplied in a ready for use.
as standard. The values given in parentheses are mathematical
4.5 The above classes of mortars are further classified for
conversions to SI units that are provided for information only
usage with a particular type of brick as prescribed in Table 1.
and are not considered standard.
5. Test Methods
2. Referenced Documents
5.1 The properties enumerated in this classification shall be
2.1 ASTM Standards:
determined in accordance with the following ASTM test
C199 Test Method for Pier Test for Refractory Mortars
methods:
C27 Classification of Fireclay and High-Alumina Refrac-
5.1.1 Pier Test – Test Method C199. For medium-duty,
tory Brick
high-duty, super-duty and high-alumina mortar classes test
3. Significance and Use with appropriate brick that meet requirements specified in Test
Method C199. For high-alumina mortars in the 80 %, 85 %,
3.1 Refractory mortars are used for laying, bonding and
90 %, and 99 % classes test with high-alumina brick from the
coating refractory brick. They become an integral part of the
appropriate class meeting the requirements specified in Clas-
resulting refractory lining or structure. Therefore, such mortars
sification C27.
should be selected in order to closely match those of the brick.
5.1.2 Alumina Content – XRF and ICP after calcining to
A classification system is provided for use in producing,
1830 °F (1000 °C).
purchasing and using different types of refractory mortars.
6. Retests
4. Basis of Classification
6.1 Because of possible variables that may result from
4.1 Heat-Setting Mortars – This class hardens at elevated
sampling or an unsatisfactory reproducibility of tests by
temperature by forming a ceramic bond. The minimum tem-
different laboratories, the material may be resampled and
perature required for formi
...