ASTM C449-07(2019)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:C449 −07 (Reapproved 2019)
Standard Specification for
Mineral Fiber Hydraulic-Setting Thermal Insulating and
Finishing Cement
This standard is issued under the fixed designation C449; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers mineral fiber (rock or slag)
Barriers to Trade (TBT) Committee.
insulating and finishing cement shipped in dry-mix form,
including hydraulic-setting binder, which, when mixed with
2. Referenced Documents
water and applied in accordance with the manufacturer’s
2.1 ASTM Standards:
directions, affords a smooth surface as a final finish for heated
C163 Practice for Mixing Thermal Insulating Cement
surfaces up to 1200 °F (649 °C) for specific applications. The
Samples
actual temperature limit shall be agreed upon between the
C166 Test Method for Covering Capacity and Volume
purchaser and the manufacturer.
Change Upon Drying of Thermal Insulating Cement
NOTE 1—Precautionary measures should be taken with this material as
C168 Terminology Relating to Thermal Insulation
with other hydraulic-setting mixtures.This material should be used within
C177 Test Method for Steady-State Heat Flux Measure-
the time period recommended by the manufacturer.
ments and Thermal Transmission Properties by Means of
1.2 The values stated in inch-pound units are to be regarded
the Guarded-Hot-Plate Apparatus
as standard. The values given in parentheses are mathematical
C356 Test Method for Linear Shrinkage of Preformed High-
conversions to SI units that are provided for information only
Temperature Thermal Insulation Subjected to Soaking
and are not considered standard.
Heat
1.3 The following safety hazards caveat pertains only to the
C390 Practice for Sampling and Acceptance of Thermal
test method (Section 10) described in this specification: This
Insulation Lots
standard does not purport to address all of the safety concerns,
C411 Test Method for Hot-Surface Performance of High-
if any, associated with its use. It is the responsibility of the user
Temperature Thermal Insulation
of this standard to establish appropriate safety, health, and
C518 Test Method for Steady-State Thermal Transmission
environmental practices and determine the applicability of
Properties by Means of the Heat Flow Meter Apparatus
regulatory limitations prior to use.
C795 Specification for Thermal Insulation for Use in Con-
1.4 When the installation or use of thermal insulation
tact with Austenitic Stainless Steel
materials, accessories, and systems pose safety or health
C1045 Practice for Calculating Thermal Transmission Prop-
problems, the manufacturer shall provide the user with appro-
erties Under Steady-State Conditions
priate current information regarding any known problems
C1058 Practice for Selecting Temperatures for Evaluating
associated with the recommended use of the company’s
and Reporting Thermal Properties of Thermal Insulation
products and shall also recommend protective measures to be
C1114 Test Method for Steady-State Thermal Transmission
employed in their safe utilization. The user shall establish
Properties by Means of the Thin-Heater Apparatus
appropriate safety and health practices and determine the
E136 Test Method forAssessing Combustibility of Materials
applicability of regulatory requirements prior to use.
Using a Vertical Tube Furnace at 750°C
1.5 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions—Definitions found in Terminology C168
ization established in the Decision on Principles for the
shall be considered as applying to the terms used in this
specification.
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on
Homogeneous Inorganic Thermal Insulations. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2019. Published April 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1960. Last previous edition approved in 2013 as C449 – 07 (2013). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0449-07R19. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C449−07 (2019)
4. Materials and Manufacture Criteria for Inspection Requirements) of Practice C390, with
each bag representing a shipping unit.
4.1 Mineral fiber insulating and finishing cement shall be
composed of mineral fiber and suitable inorganic fillers,
7.2 The test specimen shall be taken from the middle of a
premixed with a hydraulic setting binder such that when mixed bag, so as to be representative of material from the entire bag.
with clean, fresh water, the cement will attain its initial set in
A “grain thief” or equivalent shall be used to obtain the
approximately 2 to4has usually applied. specimen from the bag.
4.2 The mineral fiber shall consist of rock or slag or glass
8. Number of Tests and Retests
processed from a molten state into fibrous form.
8.1 The number of tests shall be as required in 7.1 or as
4.3 Asbestos shall not be used as an ingredient or compo-
otherwise agreed to between the manufacturer and the user.
nent part in the manufacture of this product.
8.2 If the average of the test data obtained on the required
4.4 Ceramic fiber shall not be used as an ingredient or
number of specimens fails to comply with the requirements of
component part in the manufacture of this product.
Table 1, the lot shall be resampled and retested. The results of
Warning—In the presence of moisture or water, a hydraulic-
the retest shall be averaged with the results of the original tests
setting binder, usually portland cement, will chemically react
to determine compliance with this specification.
with aluminum-containing materials such as aluminum lagging
and powdered aluminum pigmented paints or coatings.
9. Specimen Preparation
5. Other Requirements
9.1 Allow dry cement to expand/swell by standing for at
5.1 The cement shall conform to the requirements given in
least 15 min. then mix cement with water, and mold, cure, dry
Table 1. Conformance shall be based on results of tests on
and cut in accordance with Practice C163, to produce the
specimens prepared in accordance with 9.1.
appropriate size and shape specimens, for testing as specified
5.2 Maximum Use Temperature—When tested in accor-
below.
dance with 10.5, the dried
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