ASTM E759-92(2011)
(Test Method)Standard Test Method for Effect of Deflection on Sprayed Fire-Resistive Material Applied to Structural Members
Standard Test Method for Effect of Deflection on Sprayed Fire-Resistive Material Applied to Structural Members
SIGNIFICANCE AND USE
The intent of this test method is to determine properties of direct-applied SFRM that may be used to provide an indication of serviceability. Satisfactory performance of fire-resistive material applied to structural members and assemblies depends upon its ability while in place to withstand the various influences that may occur during the life of the structure, as well as upon its satisfactory performance under fire tests.
This test method measures the behavior of SFRM when subjected to deflection and evaluates such phenomena as spalling and delamination under bending stress. It is an indication of the ability of SFRM to remain in place and resist removal during anticipated service conditions.
SCOPE
1.1 This test method covers a procedure for determining the effect of deflection on sprayed fire-resistive material (SFRM) applied to steel deck. These materials include sprayed fibrous and cementitious materials applied directly in contact with the structural members. The test method is applicable only to laboratory procedures.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.
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.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E759 −92 (Reapproved 2011)
StandardTest Method for
Effect of Deflection on Sprayed Fire-Resistive Material
Applied to Structural Members
This standard is issued under the fixed designation E759; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Significance and Use
1.1 This test method covers a procedure for determining the
4.1 The intent of this test method is to determine properties
effect of deflection on sprayed fire-resistive material (SFRM)
of direct-applied SFRM that may be used to provide an
applied to steel deck. These materials include sprayed fibrous
indication of serviceability. Satisfactory performance of fire-
and cementitious materials applied directly in contact with the
resistive material applied to structural members and assemblies
structural members. The test method is applicable only to
depends upon its ability while in place to withstand the various
laboratory procedures.
influences that may occur during the life of the structure, as
1.2 The values stated in SI units are to be regarded as well as upon its satisfactory performance under fire tests.
standard. The values given in parentheses are mathematical
4.2 This test method measures the behavior of SFRM when
conversions to inch-pound units that are provided for informa-
subjected to deflection and evaluates such phenomena as
tion only and are not considered standard.
spalling and delamination under bending stress. It is an
1.3 This standard does not purport to address all of the
indication of the ability of SFRM to remain in place and resist
safety concerns, if any, associated with its use. It is the
removal during anticipated service conditions.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Apparatus
bility of regulatory limitations prior to use.
5.1 Supports—Rigid base to provide at least 50 mm (2 in.)
2. Referenced Documents
bearing and a clear span between supports of 3 m (10 ft).
2.1 ASTM Standards:
5.2 Bearing Block—Approximately 50 mm (2 in.) wide,
E84 Test Method for Surface Burning Characteristics of
minimum 600 mm (24 in.) long bearing surface designed to
Building Materials
distribute the load across the width of the specimen.
E119 Test Methods for Fire Tests of Building Construction
5.3 Load—Any form of weights or testing machine capable
and Materials
of applying a load normal to the test surface and of developing
E605 Test Methods for Thickness and Density of Sprayed
a deflection of ⁄120 of the clear span of the specimen.
Fire-Resistive Material (SFRM) Applied to Structural
Members
5.4 Deflection Gage— A dial or digital micrometer gradu-
ated to 0.01 mm (0.001 in.).
3. Summary of Test Method
3.1 In this test method, a cellular steel deck panel sprayed
6. Materials and Manufacture
with fire-resistive material is subjected to bending by a vertical
6.1 The specimen shall consist of cellular steel deck nomi-
center load while supported horizontally at its ends.
nal 40 mm (1 ⁄2 in.) deep, 600 mm (24 in.) wide, by 3600 mm
(12 ft) long, consisting of a 1.5 mm (0.060 in. (18 ga.)) thick
This test method is under the jurisdiction of ASTM Committee E06 on
galvanized steel fluted top section and a 1.2-mm (0.048-in.)
Performance of Buildings and is the direct responsibility of Subcommittee E06.21
galvanized steel flat bottom section welded together to form
on Serviceability.
Current edition approved April 1, 2011. Published May 2011. Originally
four cells 150 mm (6 in.) on center.
approved in 1980. Last previous edition approved in 2005 as E759 – 92 (2005).
DOI: 10.1520/E0759-92R11.
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