ASTM C383-97

Standard Test Method for Wet Adhesion of Thermal Insulating Cements to Metal (Withdrawn 2002)

SCOPE
1.1 This test method measures the relative adhesion of wet mixed thermal insulating cements to a metal test surface. While this test method is valuable in rating these products generally, the wet adhesion of the cement to one type of surface cannot be construed as being indicative of the wet adhesion to another type of surface.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are 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.

General Information

• Status: Withdrawn
• Publication Date: 09-May-1997
• Withdrawal Date: 31-Dec-2001
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.32 - Mechanical Properties

Standards Content (Sample)

Designation: C 383 – 97
Standard Test Method for
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Wet Adhesion of Thermal Insulating Cements to Metal
This standard is issued under the fixed designation C 383; 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. Scope measures the force required to cause a freshly applied test cake
of the wet mixed cement to move along a suitable test surface,
1.1 This test method measures the relative adhesion of wet
will indicate the ability of the cement to remain in place during
mixed thermal insulating cements to a metal test surface. While
normal application to a vertical metal surface.
this test method is valuable in rating these products generally,
4.2 Many factors such as the quality and amount of mixing
the wet adhesion of the cement to one type of surface cannot be
water used, the method of mixing and applying the cement, the
construed as being indicative of the wet adhesion to another
type and condition of the surface to be insulated, and the
type of surface.
temperature of the surface will affect the wet adhesion of
1.2 The values stated in inch-pound units are to be regarded
thermal insulating cement.
as the standard. The values given in parentheses are for
information only.
5. Apparatus
1.3 This standard does not purport to address all of the
5.1 Test Plate—A stainless steel test plate 24 by 8 in. by No.
safety concerns, if any, associated with its use. It is the
10 gage (610 by 200 by 3.4 mm) or heavier thickness, with at
responsibility of the user of this standard to establish appro-
least the test surface being smoothly finished.
priate safety and health practices and determine the applica-
5.2 Mold Frames—Three, square, nondemountable mold
bility of regulatory limitations prior to use.
frames made from No. 12 gage (about 2.7 mm) aluminum
2. Referenced Documents having inside dimensions 6 by 6 by 1 in. (152 by 152 by 25
mm).
2.1 ASTM Standards:
5.3 Small Pointing Trowel and Plasterer’s Trowel.
C 163 Practice for Mixing Thermal Insulating Cement
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5.4 Loading Assembly—A base for holding the test plate in
Samples
an immovable and level position with a ball bearing or equally
C 168 Terminology Relating to Thermal Insulating Materi-
2
frictionless pulley fastened to one end of the base in such a
als
fashion that a cord can be placed around the cement cake under
3. Terminology
test. The cord shall be extended over the pulley and used to
support a container.
3.1 Definitions—Terminology C 168 shall apply to terms
used in this test method.
6. Sampling, Test Specimens, and Test Units
3.2 Description of Term Specific to This Standard:
6.1 Sample at least 3 lb (1.4 kg) of dry cement. The
3.2.1 wet adhesion—of thermal insulating cement to a test
specimen for test is to be taken from the middle of a bag, so as
surface, the force, expressed in pounds per square foot (or
to be representative of material from the entire bag.
kilograms per square metre) of contact area, that must be
6.2 Mix the cement in accordance with Practice C 163. The
applied in a direction parallel with the surface in order to slide
temperature of the mixing water shall be between 70 and 75°F
the cake of cement from its initial area of contact.
(21 and 24°C).
4. Significance and Use
6.3 Carefully clean the test plate with soap and water, rinse
in boiling water, and air dry. Take care not to touch the cleaned
4.1 Where the wet adhesive strength of thermal insulating
test surface of the plate with the fingers prior to applying test
cement is low, it is difficult to apply it to a desirable thickness
cakes of cement. Arrange the three mold frames symmetrically
or over a large area, particularly on vertical metal surfaces,
on the surface of the test plate (see Fig. 1). A jig to hold them
without having the material slide. The wet adhesion test, which
in this arrangement during the application of the cement is
desirable.
6.4 Form a properly mixed cement intoa3to 4-in. (76 to
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This test method is under the jurisdiction of ASTM Committee C-16 on
102-mm) high circular mound. Smooth the mound and allow it
Thermal Insulation and is the direct responsibility of Subcommittee C16.32 on
Mechanical Properties. to set for 1 h after mixing to absorb the water thoroughly. Then
Current edition approved May 10, 1997. Published August 1997. Originally
mix the cement once more before testing and again form it into
published as C 383 – 56 T. Last previous edition C 383 – 90.
a circular mound 3 to 4 in. high.
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Annual Book of ASTM Standards, Vol 04.06.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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C 383
FIG. 1 Assembly of Wet Adhesion Test Apparatus
6.5 Fill each of the three molds with the wet mixed cement 8.1.1 The wet adhe
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