ASTM F1097-91(2006)
(Specification)Standard Specification for Mortar, Refractory (High-Temperature, Air-Setting)
Standard Specification for Mortar, Refractory (High-Temperature, Air-Setting)
ABSTRACT
This specification covers dry air-setting refractory mortar for use in laying and bonding refractory brick in ship boiler furnaces and wet air-setting refractory mortar for use in laying refractory brick in stationary boiler furnaces, bright annealing furnaces, controlled atmosphere furnaces, and furnaces heated by electric elements. The refractory mortar shall be of the following types: Type 1 and Type 2. The mortar shall be composed of finely ground heat-resistant clays, minerals, or a mixture of clays and minerals in either a dry or wet condition. Fineness test, heat soak, and bonding strength test shall be performed to conform with the specified requirements.
SCOPE
1.1 This specification covers dry air-setting refractory mortar for use in laying and bonding refractory brick in ship boiler furnaces and wet air-setting refractory mortar for use in laying refractory brick in stationary boiler furnaces, bright annealing furnaces, controlled atmosphere furnaces, and furnaces heated by electric elements.
1.2 The values stated in inch-pound units are to be regarded as standard. The SI units in parentheses are for information purposes only and may be approximate.
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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Standards Content (Sample)
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An American National Standard
Designation: F1097 – 91 (Reapproved 2006)
Standard Specification for
Mortar, Refractory (High-Temperature, Air-Setting)
This standard is issued under the fixed designation F1097; 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 UU-S-48 Sacks, Shipping, Paper
PPP-B-35 Bags: Textile, Shipping, Burlap, Cotton and Wa-
1.1 This specification covers dry air-setting refractory mor-
terproof Laminated
tar for use in laying and bonding refractory brick in ship boiler
PPP-B-704 Pails: Shipping, Steel (1 through 12 gallon)
furnaces and wet air-setting refractory mortar for use in laying
2.3 Military Standards —The following documents shall
refractory brick in stationary boiler furnaces, bright annealing
apply only when one or more of the requirements of S1 are
furnaces, controlled atmosphere furnaces, and furnaces heated
specified in the contract or purchase order (see 4.1.3):
by electric elements.
MIL-STD-105 Sampling Procedures and Tables for Inspec-
1.2 The values stated in inch-pound units are to be regarded
tion by Attributes
as standard. The SI units in parentheses are for information
MIL-STD-129 Marking for Shipment and Storage
purposes only and may be approximate.
1.3 This standard does not purport to address all of the
3. Classification
safety concerns, if any, associated with its use. It is the
3.1 The refractory mortar shall be of the following types:
responsibility of the user of this standard to establish appro-
3.1.1 Type 1—Dry.
priate safety and health practices and determine the applica-
3.1.2 Type 2—Wet.
bility of regulatory limitations prior to use.
4. Ordering Information
2. Referenced Documents
2 4.1 Orders for material under this specification shall include
2.1 ASTM Standards:
the following information, as necessary to adequately describe
C24 Test Method for Pyrometric Cone Equivalent (PCE) of
the material:
Fireclay and High Alumina Refractory Materials
4.1.1 ASTM designation and year of issue,
C27 Classification of Fireclay and High-Alumina Refrac-
4.1.2 Type required (see 3.1), and
tory Brick
4.1.3 Optional requirements, if any (see S1).
C92 Test Methods for SieveAnalysis and Water Content of
Refractory Materials
5. Material
C133 Test Methods for Cold Crushing Strength and Modu-
5.1 The mortar shall be composed of finely ground heat-
lus of Rupture of Refractories
resistant clays, minerals, or a mixture of clays and minerals in
C198 Test Method for Cold Bonding Strength of Refractory
either a dry or wet condition.
Mortar
5.1.1 Type 1, Dry—Mortar shall be furnished dry and shall
C199 Test Method for Pier Test for Refractory Mortars
be ready for use as soon as mixed with water. Mortar, after
2.2 Federal Specifications —The following documents
being mixed with water and then dried, shall be capable of
shall apply only when one or more of the requirements of S1
being remixed with water.
are specified in the contract or purchase order (see 4.1.3):
5.1.2 Type 2, Wet—Mortar shall be furnished ready for use
at a trowelling consistency and shall be easily mixed with
This specification is under the jurisdiction of ASTM Committee F25 on Ships
water to a dipping consistency.
and Marine Technology and is the direct responsibility of Subcommittee F25.07 on
General Requirements.
Current edition approved Dec. 1, 2006. Published January 2007. Originally
approved in 1991. Last previous edition approved in 2001 as F1097 – 91 (2001).
DOI: 10.1520/F1097-91R06.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM 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.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
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Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1097 – 91 (2006)
6. Performance Requirements composite. There shall be no evidence of failure to meet the
specified unit or average requirements.
6.1 Resistance to Heat Soaking—Mortarshallnotsoftennor
9.3 The PCE shall be determined on two cones of different
show any evidence of fusion, and the shrinkage shall not be
samples from each lot. If both cones fail, this shall be cause for
greater than hairline cracks when tested as specified in 11.2.
rejection without retest. If either cone fails, three additional
6.2 Bonding Strength—The average modulus of rupture at
cones shall be made, each from a different sample. If any one
the brick joint when tested as specified in 11.3 shall be not less
of the three retest cones fail, this shall be cause for rejection.
than shown in Table 1.
6.3 Pyrometric Cone Equivalent (PCE)—The PCE shall be
10. Specimen Preparation
not less than cone 32 (see 11.4).
10.1 The entire mortar sample for testing shall be thor-
oughly mixed to ensure uniformity before any portion is taken
7. Requirements
for tests. The selected portion of Type 1 (dry) mortar shall be
7.1 Fineness—Mortar shall be ground to such fineness that
mixed with water to a trowelling consistency for the tests of
not more than 5 % shall be retained on a No. 40 ASTM sieve,
11.2 and 11.3.
and not more than 0.5 % shall be held on a No. 30ASTM sieve
10.2 For the test specified in 11.3, brick-mortar joints shall
(see 11.1).
be prepared in accordance with Test Method C198, except that
7.2 Shelf Life, Type 1—Mortar shall show no deterioration
refractorybricks,conformingtoClassificationC27,super-duty,
after 1 year’s storage.
shall be used and shall be cut in half. The two halves of each
7.3 Shelf Life, Type 2—At any time within one year of
brick shall be placed in a device suitable for bringing, with a
shipment from the supplier, the mortar in a previously un-
straight motion, the molded ends together with the faces
opened container shall not have stiffened to such an extent as
parallel at all times to form a bond.
to interfere with its easy removal and mixing.
10.2.1 Asmallquantityofmortarshallbespreadbyatrowel
7.4 Consistency—Mortar, when tempered with water, shall
on the upper face forming the bond to ensure intimate contact.
be of such consistency that it will be suitable for spreading
Sufficient mortar to give a ⁄8-in. (3-mm) thick layer shall be
easily with a trowel or for dipping and for laying refractory
spread evenly on the lower bond forming face and the upper
brick and bonding them together upon drying and upon
half shall be lowered until it is ⁄16 in. (2 mm) from the lower
subsequent heating at furnace temperatures. Mortar shall retain
half. The excess mortar shall be cut from the joint, flush with
this degree of workability for 2 h.
the sides of the brick. The unit thus formed shall be removed
7.4.1 The mixed mortar shall have sufficient water retention
at once from the bond-forming machine. The bond specimens
to permit a ⁄16-in. (2-mm) joint to be made with a trowelling
shall be allowed to air-dry for 24 h.
consistency, but not allow the newly laid brick to float out of
position. 11. Test Methods
11.1 Fineness—The fineness test shall be made in accor-
8. Workmanship
dance with Test Methods C92.
8.1 Workmanship shall be first class in every respect. There
11.2 Heat Soak:
shall be no foreign material or caked aggregate lumps in the 11.2.1 A pier of refractory brick, conforming to Classifica-
mortar. Wet mortar shall be easily removed from the container
tion C27, super-duty, laid up with the test mortar shall be
and shall mix easily to a uniform trowelling consistency. prepared and heated at 2910°F (1588°C) for5hin accordance
with Test Method C199.
9. Sampling 11.2.2 The cooled pier shall be examined for evidence of
shrinkage, softening, or fusion of the mortar. One or more
9.1 An inspection lot for tests and inspections shall consist
mortar joints shall be broken and the freshly broken morta
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