ASTM E760-92(2000)
(Test Method)Standard Test Method for Effect of Impact on Bonding of Sprayed Fire-Resistive Material Applied to Structural Members
Standard Test Method for Effect of Impact on Bonding of Sprayed Fire-Resistive Material Applied to Structural Members
SCOPE
1.1 This test method covers a procedure for determining the effect of impact loading on the bonding of sprayed fire-resistive material (SFRM) applied to the underside of steel floor 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 This standard does not purport to address 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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An American National Standard
Designation:E760–92 (Reapproved 2000)
Standard Test Method for
Effect of Impact on Bonding of Sprayed Fire-Resistive
Material Applied to Structural Members
This standard is issued under the fixed designation E 760; 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 in-place serviceability. Satisfactory performance of SFRM
applied to structural members and assemblies depends upon its
1.1 This test method covers a procedure for determining the
ability to withstand the various influences that may occur
effectofimpactloadingonthebondingofsprayedfire-resistive
during construction and during the life of the structure, as well
material (SFRM) applied to the underside of steel floor deck.
as upon its satisfactory performance under fire conditions.
These materials include sprayed fibrous and cementitious
4.2 The test method measures the behavior of SFRM when
materials applied directly in contact with the structural mem-
the floor construction to which it is applied is subjected to
bers. The test method is applicable only to laboratory proce-
shock loading and evaluates adhesion and resistance to spal-
dures.
ling, cracking, and delamination. It is an indication of the
1.2 This standard does not purport to address all of the
ability of SFRM to remain in place and resist removal during
safety concerns, if any, associated with its use. It is the
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 at least 3 m (10
ft).
2.1 ASTM Standards:
5.2 Impact Instrument—A lead shot- or steel shot-filled
E 84 Test Method for Surface Burning Characteristics of
leather bag weighing 27.2 kg (60 lb) and equipped with a
Building Materials
leather hoisting strap, both as described in Method E 695.
E 119 Test Methods for Fire Tests of Building Construction
5.3 Rule—To measure the height of drop (1.2 m (4 ft)) with
and Materials
an accuracy of 12.8 mm ( ⁄2 in.).
E 605 Test Methods for Thickness and Density of Sprayed
Fire-Resistive Material (SFRM) Applied to Structural
6. Materials
Members
6.1 Thetestspecimenshallbeadeckassemblyconsistingof
E 695 Method for Measuring Relative Resistance of Wall,
3 cellular steel deck and a concrete topping. The cellular steel
Floor, and Roof Constructions to Impact Loading
deck shall be of the noncomposite type, nominal 40 mm (1 ⁄2
3. Summary of Test Method in.) deep, 600 mm (24 in.) wide, by 3600 mm (12 ft) long,
consisting of a 1.5-mm (0.060-in.) thick galvanized or painted
3.1 In this test method, a cellular steel deck with a concrete
steel fluted top section and 1.2-mm (0.048-in.) galvanized steel
topping sprayed with fire-resistive material is subjected to a
flat bottom section welded together to form four cells 150 mm
leather bag drop impact while supported horizontally at its
(6 in.) on center.
ends.
6.2 The concrete shall be nominal 20 MPa (3000 psi), and
4. Significance and Use 64 mm (2 ⁄2 in.) deep as measured from the top plane to the
steel decking.
4.1 The intent of this test method is to determine a property
6.3 This test method requires the application of SFRM in
of SFRM that may be used to provide an indication of its
accordance with manufacturers’ published instructions. The
apparatus, materials, and procedures used to apply the S
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