ASTM C1705/C1705M-09

Standard Specification for Structural Cementitious Panels

SCOPE
1.1 This specification covers structural cementitious panels. Structural cementitious panels are non-combustible, water durable, fiber reinforced inorganic composite panels intended for use as structural panels. Structural cementitious panels can be used as floor, roof and wall sheathing when fastened to supports spaced in accordance with the appropriate span rating.
1.2 This specification defines minimum performance requirements for structural cementitious sheathing panels with respect to structural performance, dimensional stability performance, dimensional tolerance, noncombustibility, surface burning characteristics, long-term durability, water durability, mold resistance, density, moment capacity and bending stiffness.
1.3 This specification also defines a policy to assure on-going product quality by detecting changes in panel properties that may adversely affect panel performance. Required audits of quality activities by a third party quality assurance agency are also defined.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 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: Historical
• Publication Date: 14-Feb-2009
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C27 - Precast Concrete Products
• Drafting Committee: C27.40 - Glass Fiber Reinforced Concrete

Relations

• Referred By: ASTM C1704/C1704M-09a(2023) - Standard Test Method for Sampling and Testing Structural Cementitious Panels
• Effective Date: 15-Feb-2009

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C1705/C1705M −09
StandardSpecification for
Structural Cementitious Panels
This standard is issued under the fixed designation C1705/C1705M; 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 C1185 Test Methods for Sampling and Testing Non-
Asbestos Fiber-Cement Flat Sheet, Roofing and Siding
1.1 This specification covers structural cementitious panels.
Shingles, and Clapboards
Structural cementitious panels are non-combustible, water
C1704/C1704M Test Method for Sampling and Testing
durable, fiber reinforced inorganic composite panels intended
Structural Cementitious Panels
for use as structural panels. Structural cementitious panels can
D1037 Test Methods for Evaluating Properties of Wood-
be used as floor, roof and wall sheathing when fastened to
Base Fiber and Particle Panel Materials
supportsspacedinaccordancewiththeappropriatespanrating.
D1761 Test Methods for Mechanical Fasteners in Wood
1.2 This specification defines minimum performance re-
D3273 TestMethodforResistancetoGrowthofMoldonthe
quirements for structural cementitious sheathing panels with
Surface of Interior Coatings in an Environmental Cham-
respect to structural performance, dimensional stability
ber
performance, dimensional tolerance, noncombustibility, sur-
E84 Test Method for Surface Burning Characteristics of
face burning characteristics, long-term durability, water
Building Materials
durability, mold resistance, density, moment capacity and
E136 Test Method for Behavior of Materials in a Vertical
bending stiffness.
Tube Furnace at 750°C
E330 Test Method for Structural Performance of Exterior
1.3 This specification also defines a policy to assure on-
going product quality by detecting changes in panel properties Windows, Doors, Skylights and CurtainWalls by Uniform
Static Air Pressure Difference
that may adversely affect panel performance. Required audits
of quality activities by a third party quality assurance agency E661 Test Method for Performance of Wood and Wood-
Based Floor and Roof Sheathing Under Concentrated
are also defined.
Static and Impact Loads
1.4 The values stated in either inch-pound units or SI units
G21 Practice for Determining Resistance of Synthetic Poly-
are to be regarded separately as standard. Within the text, the
meric Materials to Fungi
SI units are shown in brackets. The values stated in each
system may not be exact equivalents; therefore, each system
3. Terminology
shall be used independently of the other. Combining values
from the two systems may result in non-conformance with the 3.1 Definitions of Terms Specific to This Standard:
standard.
3.1.1 cross machine direction (XMD), n— the direction
perpendicular to the machine direction.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1.2 edge, n—edges of a panel refer to the long side of a
responsibility of the user of this standard to establish appro-
rectangular panel. For example, ona4by8ft panel, the edges
priate safety and health practices and determine the applica-
refer to the sides of the panel that are 8 ft long.
bility of regulatory limitations prior to use.
3.1.3 end, n—the end of a panel refers to the short side of a
rectangular panel. For example, ona4by8ft panel, the end
2. Referenced Documents
refers to the side of the panel that is 4 ft long.
2.1 ASTM Standards:
3.1.4 fiber reinforced inorganic composite, n—a composite
material composed primarily of inorganic matrix materials
This specification is under the jurisdiction ofASTM Committee C27 on Precast
reinforced primarily with inorganic fibers. Inorganic aggre-
Concrete Products and is the direct responsibility of Subcommittee C27.40 on Glass
Fiber Reinforced Concrete. gates may be combined with the inorganic matrix.
Current edition approved Feb. 15, 2009. Published March 2009. DOI: 10.1520/
3.1.5 machine direction (MD), n—the direction the board
C1705_C1705M-09.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or travels during manufacture.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3.1.6 noncombustibility, n—term intended to describe prod-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ucts that do not ignite and/or burn when subjected to fire. Test
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1705/C1705M−09
methods are generally specified by reputable agencies such as 3.1.18 test exposure condition, n—the condition to which a
ASTM, Factory Mutual, Underwriters Lab Inc., etc. panel is subjected prior to test. Generally, such conditions are
referred to as the dry or wet conditions.
3.1.7 performance standard, n—a standard for products
based on performance. Performance is measured by tests that
3.1.19 test specimen, n—specimens cut from a sample panel
approximate end-use conditions.
that are used for testing.
3.1.8 plant specification, n—theplantspecificationisunique
3.1.20 water durability, n—performance of a product after
to each qualified product under a given performance standard.
sustained immersion in water for a specified period of time.
The specification is used in the plant quality program as
audited under the approved quality control program.
4. Performance Specifications for Structural
3.1.9 qualification policy, n—policy that describes the pro-
Cementitious Panels
cedures by which a plant may obtain span rating privileges for
4.1 Structural cementitious panels are fiber-reinforced inor-
performance-rated products policy.
ganic composite panels intended for use as structural panels.
3.1.10 quality assurance policy, n—policy covering the
When used as a floor sheathing panel, structural cementitious
third-party auditing of plant’s quality control program.
panelscanbeusedasacombinationsubfloorandunderlayment
3.1.11 reference value, n—the numerical value established
(single floor grade) or as a sheathing grade panel, which when
for the plant specification for a given mechanical or physical
used as a floor requires an underlayment panel on top of it. In
property.
either case, panels must be fastened to supports spaced in
accordance with the panel’s span rating. Sections 5 through 13
3.1.12 sample average, n—the average test value, obtained
by summing the observations and dividing by the number of describe qualification procedures and initial testing required to
tests. demonstrate that the panel’s performance characteristics meet
the requirements of this standard.
3.1.13 sample panel, n—a structural cementitious panel
from which test specimens are cut and conditioned as neces-
5. Structural Performance
sary.
3.1.14 sample standard deviation, n—a measure of test 5.1 Concentrated Loads—Panels shall be tested according
variation. Calculated as:
to the procedures of Test Method E661 for concentrated static
and impact loads. Panels shall conform to the criteria of Tables
S 5 =@ x 2 x /n#/n 21 (1)
~ !
( (
1 and 2 for the end use and span shown on the panel.
where:
5.2 Uniform Loads—Panels shall be tested according to the
S = sample standard deviation,
procedures of Test Method E330 for uniform loads. Uniform
x = test observation, and
loads shall be applied in both the positive and negative
n = number of observations.
directions. Panels shall conform to the performance values of
3.1.15 span rating, n—the recommended maximum center- Table 3 for the end use and span shown on the panel.
to-center support spacing in inches for the specified end use
5.3 Fastener Holding—For lateral fastener loads, panels
under normal use conditions.
shall be tested according to the procedures of Test Methods
3.1.16 specimen, n—the individual test piece cut from a
D1761, using the sections applicable to lateral fastener load
sample panel.
testing. For withdrawal loads, panels shall be tested according
3.1.17 structural cementitious panel, n— non-combustible, to Test Methods D1037, using the sections applicable to
water durable, fiber-reinforced inorganic composite panels withdrawal load testing. Panels shall conform to the criteria of
intended for use as structural panels. Table 4 for the end use and thickness shown on the panel.
TABLE 1 Sheathing Grade Sheets—Concentrated Static and Impact Test Performance Criteria for Panels Tested According to
Test Method E661
Performance Requirements
Span Rating, Test Exposure
Maximum
Minimum Ultimate Load, lb [kN]
A
in. Conditions
Deflection, in. [mm]
Static Following Impact
Under 200-lb Load [0.89 kN]
B C
16 [406 mm] Dry 400 lb [1.78 kN] 400 lb [1.78 kN] 0.125 in. [3.18 mm]
B C
400 lb [1.78 kN] 0.125 in. [3.18 mm]
Wet 400 lb [1.78 kN]
B C
20 [508 mm] Dry 400 lb [1.78 kN] 400 lb [1.78 kN] 0.125 in. [3.18 mm]
B C
400 lb [1.78 kN] 0.125 in. [3.18 mm]
Wet 400 lb [1.78 kN]
B C
24 [610 mm] Dry 400 lb [1.78 kN] 400 lb [1.78 kN] 0.125 in. [3.18 mm]
B C
400 lb [1.78 kN] 0.125 in. [3.18 mm]
Wet 400 lb [1.78 kN]
A
Wet conditioning is exposure to seven days continuous wetting and tested wet.
B
Impact shall be 75 ft-lb [102 J] for span ratings up to 24 in. o.c [610 mm o.c.].
C
Criteria apply under both static concentrated load and following impact.
C1705/C1705M−09
TABLE 2 Single Floor Grade Sheets—Concentrated Static and Impact Test Performance Criteria for Panels Tested According to
Test Method E661
Performance Requirements
Span Rating, Test Exposure
Maximum
Minimum Ultimate Load, lb [kN]
A
in. Conditions
Deflection, in. [mm]
Static Following Impact
Under 200-lb Load [0.89 kN]
B C
16 [406 mm] Dry 550 lb [2.45 kN] 400 lb [1.78 kN] 0.078 in. [1.98 mm]
B C
400 lb [1.78 kN] 0.078 in. [1.98 mm]
Wet 550 lb [2.45 kN]
B C
20 [508 mm] Dry 550 lb [2.45 kN] 400 lb [1.78 kN] 0.094 in. [2.39 mm]
B C
400 lb [1.78 kN] 0.094 in. [2.39 mm]
Wet 550 lb [2.45 kN]
B C
24 [610 mm] Dry 550 lb [2.45 kN] 400 lb [1.78 kN] 0.108 in. [2.74 mm]
B C
400 lb [1.78 kN] 0.108 in. [2.74 mm]
Wet 550 lb [2.45 kN]
A
Wet conditioning is exposure to seven days continuous wetting and tested wet.
B
Impact shall be 75 ft-lb [102 J] for span ratings up to 24 in. o.c. [610 mm o.c.].
C
Criteria apply under both static concentrated load and following impact.
TABLE 3 Uniform Load Performance Criteria for Panels Tested per Test Method E330
Test Minimum Ultimate
Span Rating, Average Deflection
Exposure Uniform Load,
B,C
in. Under Load
A
Conditions psf
...