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ASTM C318/C318M-13

(Specification)

Standard Specification for Gypsum Formboard

Standard Specification for Gypsum Formboard

ABSTRACT
This specification covers the minimum requirements for gypsum formboard designed for use as a permanent form for poured-in-place reinforced gypsum concrete roof decks. Gypsum formboard shall consist of a noncombustible core, essentially gypsum, either mineral or organic, synthetic or natural. The face surface shall be specifically treated to resist fungus growth. Specimens shall be subjected to the following test methods: flexural strength; humidified deflection; core, end, and edge hardness; and resistance to fungi. Specimens shall be tested to determine thickness, width, length, end squareness, and edges and ends. The surfaces of gypsum formboard shall be true and free from imperfections that would render it unfit for use with or without decoration.
SCOPE
1.1 This specification covers the minimum requirements for gypsum formboard designed for use as a permanent form for poured-in-place reinforced gypsum concrete roof decks.  
1.2 The values stated in either inch-pound units or SI (metric) are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independent of the other. Values from the two systems shall not be combined.  
1.3 The text of this standard references notes which provide explanatory material. These notes shall not be considered requirements of the standard.

General Information

Status
Historical
Publication Date
30-Sep-2013
ICS
91.100.40 - Products in fibre-reinforced cement
Technical Committee
C11 - Gypsum and Related Building Materials and Systems
Drafting Committee
C11.01 - Specifications and Test Methods for Gypsum Products
Current Stage
Ref Project

Relations

Replaces
ASTM C318/C318M-00(2010) - Standard Specification for Gypsum Formboard
Effective Date
01-Oct-2013
Replaced By
ASTM C318/C318M-13(2018) - Standard Specification for Gypsum Formboard
Effective Date
01-Oct-2018
Referred By
ASTM C11-23 - Standard Terminology Relating to Gypsum and Related Building Materials and Systems
Effective Date
01-Oct-2013

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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C318/C318M −13
Standard Specification for
1
Gypsum Formboard
This standard is issued under the fixed designation C318/C318M; 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* containing not more than 15 % by weight of fiber, either
mineral or organic, synthetic or natural.
1.1 This specification covers the minimum requirements for
gypsum formboard designed for use as a permanent form for 4.2 The face surface shall be specifically treated to resist
poured-in-place reinforced gypsum concrete roof decks. fungus growth.
1.2 The values stated in either inch-pound units or SI
5. Physical Properties
(metric) are to be regarded separately as standard. Within the
text, the SI units are shown in brackets. The values stated in 5.1 Specimens shall be tested in accordance with Test
each system shall be used independent of the other. Values
Methods C473.
from the two systems shall not be combined.
NOTE 1—Since this product is laid between subpurlins without me-
1.3 The text of this standard references notes which provide chanical attachment, a nail pull requirement is not specified for this
gypsum panel product.
explanatory material. These notes shall not be considered
requirements of the standard.
5.1.1 Specimensshallbetakenfromthesamplesobtainedin
accordance with Specification C1264.
2. Referenced Documents
5.1.2 Flexural Strength—The specimens shall be tested face
2
2.1 ASTM Standards:
up and face down. The average breaking load shall be not less
C11 Terminology Relating to Gypsum and Related Building
than the following:
Materials and Systems
Bearing Edges Across Bearing Edges Par- Bearing Edges Par-
C22 Specification for Gypsum
Fiber of Surfacing, allel Fiber of Sur- allel Fiber of Sur-
lbf [N] facing, Face, lbf [N] facing, Back, lbf [N]
C473 Test Methods for Physical Testing of Gypsum Panel
Method A 160 [715] 60 [270] 40 [180]
Products
Method B 157 [700] 56 [250] 36 [160]
C1264 Specification for Sampling, Inspection, Rejection,
5.1.3 Humidified Deflection—The specimens shall have an
Certification, Packaging, Marking, Shipping, Handling,
average deflection of not more than the following:
and Storage of Gypsum Panel Products
Thickness, Humidified Deflection,
G21 Practice for Determining Resistance of Synthetic Poly-
in. (mm) Eighths of an in. (mm)
1
meric Materials to Fungi
⁄2 [12.7] 10 [32]
5.1.4 Core, End, and Edge Hardness—The specimens shall
3. Terminology
have an average hardness of 15 lbf [65 N] when tested by
3.1 Definitions—Definitions of terms used in this standard
Method A and 11 lbf [50 N] when tested by Method B.
shall be in accordance with Terminology C11.
5.1.5 Resistance to Fungi—The specimens shall obtain a
rating not more than 1 (one) when judged in accordance with
4. Materials and Manufacture
Practice G21, paragraph 9.3, (Observation for Visible Effects).
4.1 Gypsum formboard shall consist of a noncombustible
core, essentially gypsum complying with Specification C22,
6. Dimensions and Tolerances
6.1 Specimens shall be taken from the samples obtained in
1
This specification is under the jurisdiction of ASTM Committee C11 on
accordance with Section 8.
Gypsum and Related Building Materials and Systems and is the direct responsibility
of Subcommittee C11.01Specifications and Test Methods for Gypsum Products.
6.2 Thickness, width, length, and end squareness shall be
Current edition approved Oct. 1, 2013. Published October 2013. Originally
determined in accordance with Test Methods C473.
approved in 1953. Last previous edition approved in 2010 as C318/C318M – 00
1
(2010). DOI: 10.1520/C0318_C0318M-13.
6.2.1 Thickness—Thenominalthicknessshallbe ⁄2in.[12.7
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
mm] with tolerances in the nominal thickness of 6 ⁄64 in. [0.4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
mm] with local variations of 6 ⁄32 in. [0.8 mm] from the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. nominal thickness.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C318/C318M − 13
6.2.2 Width—The nominal width shall be 32 in. [813 mm] 8. Sampling, Inspection, Rejection, Certification,
1
with a tolerance of ⁄8 in. [3 mm] over the specified width, and Packaging and Package Marking, Shipping, Handling
1
⁄4 in.
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C318/C318M − 00 (Reapproved 2010) C318/C318M − 13
Standard Specification for
1
Gypsum Formboard
This standard is issued under the fixed designation C318/C318M; 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 Scope*
1.1 This specification covers the minimum requirements for gypsum formboard designed for use as a permanent form for
poured-in-place reinforced gypsum concrete roof decks.
1.2 The values stated in either inch-pound units or SI (metric) are to be regarded separately as standard. Within the text, the SI
units are shown in brackets. The values stated in each system shall be used independent of the other. Values from the two systems
shall not be combined.
1.3 The text of this standard references notes which provide explanatory material. These notes shall not be considered
requirements of the standard.
2. Referenced Documents
2
2.1 ASTM Standards:
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C22 Specification for Gypsum
C473 Test Methods for Physical Testing of Gypsum Panel Products
C1264 Specification for Sampling, Inspection, Rejection, Certification, Packaging, Marking, Shipping, Handling, and Storage of
Gypsum Panel Products
G21 Practice for Determining Resistance of Synthetic Polymeric Materials to Fungi
3. Terminology
3.1 Definitions—Definitions of terms used in this standard shall be in accordance with Terminology C11.
4. Materials and Manufacture
4.1 Gypsum formboard shall consist of a noncombustible core, essentially gypsum, gypsum complying with Specification C22,
containing not more than 15 % by weight of fiber, either mineral or organic, synthetic or natural.
4.2 The face surface shall be specifically treated to resist fungus growth.
5. Physical Properties
5.1 Specimens shall be tested in accordance with Test Methods C473.
NOTE 1—Since this product is laid between subpurlins without mechanical attachment, a nail pull requirement is not specified for this gypsum panel
product.
5.1.1 Specimens shall be taken from the samples obtained in accordance with Specification C1264.
5.1.2 Flexural Strength—The specimens shall be tested face up and face down. The average breaking load shall be not less than
the following:
1
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.01Specifications and Test Methods for Gypsum Products.
Current edition approved Oct. 1, 2010Oct. 1, 2013. Published December 2010October 2013. Originally approved in 1953. Last previous edition approved in 20052010
as C318/C318M – 00 (2010).(2005). DOI: 10.1520/C0318_C0318M-00R10.10.1520/C0318_C0318M-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C318/C318M − 13
Bearing Edges Across Bearing Edges Par- Bearing Edges Par-
Fiber of Surfacing, allel Fiber of Sur- allel Fiber of Sur-
lbf [N] facing, Face, lbf [N] facing, Back, lbf [N]
Method A 160 [715] 60 [270] 40 [180]
Method B 157 [700] 56 [250] 36 [160]
Bearing Edges Across Bearing Edges Par- Bearing Edges Par-
Fiber of Surfacing, allel Fiber of Sur- allel Fiber of Sur-
lbf [N] facing, Face, lbf [N] facing, Back, lbf [N]
Method A 160 [715] 60 [270] 40 [180]
Method B 157 [700] 56 [250] 36 [160]
5.1.3 Humidified Deflection—The specimens shall have an average deflection of not more than the following:
Thickness, Humidified Deflection,
in. (mm) Eighths of an in. (mm)
1
⁄2 [12.7] 10 [32]
Thickness, Humidified Deflection,
in. (mm) Eighths of an in. (mm)
1
⁄2 [12.7] 10 [32]
5.1.4 Core, End, and Edge Hardness—The specimens shall have an average hardness of 15 lbf [65 N] when tested by Method
A and 11 lbf [50 N] when tested by Method B.
5.1.5 Resistance to Fungi—The specimens shall obtain a rating not more than 1 (one) when judged in accor
...

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ABSTRACT
This specification covers the minimum requirements for gypsum formboard designed for use as a permanent form for poured-in-place reinforced gypsum concrete roof decks. Gypsum formboard shall consist of a noncombustible core, essentially gypsum, either mineral or organic, synthetic or natural. The face surface shall be specifically treated to resist fungus growth. Specimens shall be subjected to the following test methods: flexural strength; humidified deflection; core, end, and edge hardness; and resistance to fungi. Specimens shall be tested to determine thickness, width, length, end squareness, and edges and ends. The surfaces of gypsum formboard shall be true and free from imperfections that would render it unfit for use with or without decoration.
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5.1.3 The World Bank states: “Health hazards from breathing asbestos dust include asbestosis, a lung scarring disease, and various forms of cancer (including lung cancer and mesothelioma of the pleura and peritoneum). These diseases usually arise decades after the onset of asbestos exposure. Mesothelioma, a signal tumor for asbestos exposure, occurs among workers’ family members from dust on the workers’ clothes and among neighbors of asbestos air pollution point sources” (3).  
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SCOPE
1.1 This practice describes work practices for asbestos-cement products when maintenance, renovation, and repair are required. This includes common tasks such as drilling and cutting holes in roofing, siding, pipes, etc. that can result in exposure to asbestos fibers if not done carefully. These work practices are supplemented and facilitated by the regulatory, contractual, training, and supervisory provisions of this practice.  
1.2 Materials covered include those installed in or on buildings and facilities and those used in external infrastructure such as water, wastewater, and electrical distribution systems. Also included is pavement made from asbestos-cement manufacturing waste.  
1.3 The work practices described herein are intended for use only with asbestos-cement products already installed in buildings, facilities, and external infrastructure. They are not intended for use in construction or renovation involving the installation of new asbestos-cement products.  
1.4 The work practices are primarily intended to be used in situations where small amounts of asbestos-cement products must be removed or disturbed in order to perform maintenance, renovation, or repair necessary for operation of the building, facility, or infrastructure.  
1.5 The work practices described herein are also applicable for use where the primary objective is the removal of asbestos-cement products from the building or other location, particularly the use of wet methods and other means of dust and fiber control.  
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.7 Warning—Asbestos fibers are acknowledged carcinogens. Breathing asbestos fibers can result in disease of the lungs including asbestosis, lung cancer, and mesothelioma. Precautions in this practice should b...

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ASTM
ASTM C1609/C1609M-19a(Test Method)
Standard Test Method for Flexural Performance of Fiber-Reinforced Concrete (Using Beam With Third-Point Loading)

SIGNIFICANCE AND USE
5.1 The first-peak strength characterizes the flexural behavior of the fiber-reinforced concrete up to the onset of cracking, while residual strengths at specified deflections characterize the residual capacity after cracking. Specimen toughness is a measure of the energy absorption capacity of the test specimen. The appropriateness of each parameter depends on the nature of the proposed application and the level of acceptable cracking and deflection serviceability. Fiber-reinforced concrete is influenced in different ways by the amount and type of fibers in the concrete. In some cases, fibers may increase the residual load and toughness capacity at specified deflections while producing a first-peak strength equal to or only slightly greater than the flexural strength of the concrete without fibers. In other cases, fibers may significantly increase the first-peak and peak strengths while affecting a relatively small increase in residual load capacity and specimen toughness at specified deflections.  
5.2 The first-peak strength, peak strength, and residual strengths determined by this test method reflect the behavior of fiber-reinforced concrete under static flexural loading. The absolute values of energy absorption obtained in this test are of little direct relevance to the performance of fiber-reinforced concrete structures since they depend directly on the size and shape of the specimen and the loading arrangement.  
5.3 The results of this test method may be used for comparing the performance of various fiber-reinforced concrete mixtures or in research and development work. They may also be used to monitor concrete quality, to verify compliance with construction specifications, obtain flexural strength data on fiber-reinforced concrete members subject to pure bending, or to evaluate the quality of concrete in service.  
5.4 The results of this standard test method are dependent on the size of the specimen.
Note 5: The results obtained using one size molded ...
SCOPE
1.1 This test method evaluates the flexural performance of fiber-reinforced concrete using parameters derived from the load-deflection curve obtained by testing a simply supported beam under third-point loading using a closed-loop, servo-controlled testing system.  
1.2 This test method provides for the determination of first-peak and peak loads and the corresponding stresses calculated by inserting them in the formula for modulus of rupture given in Eq 1. It also requires determination of residual loads at specified deflections, the corresponding residual strengths calculated by inserting them in the formula for modulus of rupture given in Eq 1 (see Note 1). It provides for determination of specimen toughness based on the area under the load-deflection curve up to a prescribed deflection (see Note 2) and the corresponding equivalent flexural strength ratio.
Note 1: Residual strength is not a true stress but an engineering stress computed using simple engineering bending theory for linear elastic materials and gross (uncracked) section properties.
Note 2: Specimen toughness expressed in terms of the area under the load-deflection curve is an indication of the energy absorption capability of the particular test specimen, and its magnitude depends directly on the geometry of the test specimen and the loading configuration.  
1.3 This test method utilizes two preferred specimen sizes of 100 by 100 by 350 mm [4 by 4 by 14 in.] tested on a 300 mm [12 in.] span, or 150 by 150 by 500 mm [6 by 6 by 20 in.] tested on a 450 mm [18 in.] span. A specimen size different from the two preferred specimen sizes is permissible.  
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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 w...

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ASTM
ASTM D7357-07(2019)(Specification)
Standard Specification for Cellulose Fibers for Fiber-Reinforced Concrete

SCOPE
1.1 This specification covers minimum requirements for cellulose fibers intended for use in fiber-reinforced concrete, and other cementitious products.  
1.2 This specification provides for measurement of properties, definition of types, typical properties, and prescribes testing procedures to establish conformance to these requirements.  
1.3 In the case of conflict between a more stringent requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of a conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail. The purchase order requirements shall not take precedence if they, in any way, violate the requirements of the product specification or this specification; for example, by the waiving of a test requirement or by making a test requirement less stringent.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 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.

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ASTM
ASTM D7337/D7337M-12(2019)(Test Method)
Standard Test Method for Tensile Creep Rupture of Fiber Reinforced Polymer Matrix Composite Bars

SIGNIFICANCE AND USE
5.1 This method for investigating creep rupture of FRP bars is intended for use in laboratory tests in which the principal variable is the size or type of FRP bars, magnitude of applied force, and duration of force application. Unlike steel reinforcing bars or prestressing tendons subjected to significant sustained stress, creep rupture of FRP bars may take place below the static tensile strength. Therefore, the creep rupture strength is an important factor when determining acceptable stress levels in FRP bars used as reinforcement or tendons in concrete members designed to resist sustained loads. Creep rupture strength varies according to the type of FRP bars used.  
5.2 This test method measures the creep rupture time of FRP bars under a given set of controlled environmental conditions and force ratios.  
5.3 This test method is intended to determine the creep rupture data for material specifications, research and development, quality assurance, and structural design and analysis. The primary test result is the million-hour creep rupture capacity of the specimen.  
5.4 Creep properties of reinforced, post-tensioned, or prestressed concrete structures are important to be considered in design. For FRP bars used as reinforcing bars or tendons, the creep rupture shall be measured according to the method given herein.
SCOPE
1.1 This test method outlines requirements for tensile creep rupture testing of fiber reinforced polymer matrix (FRP) composite bars commonly used as tensile elements in reinforced, prestressed, or post-tensioned concrete.  
1.2 Data obtained from this test method are used in design of FRP reinforcements under sustained loading. The procedure for calculating the one-million hour creep-rupture capacity is provided in Annex A1.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 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.

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