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ASTM C656-07(2013)

(Specification)

Standard Specification for Structural Insulating Board, Calcium Silicate

Standard Specification for Structural Insulating Board, Calcium Silicate

ABSTRACT
This specification covers structural insulating board for general thermal insulating, fire-resistive, and marine bulkhead applications. The structural insulating boards shall be of the following types and grades: Types I and II and Grades 1; 2; 3; 4; 5; 6; 7; and 8. Calcium silicate structural insulating board shall be composed of hydrated calcium silicate with natural or man-made fibers or fillers, or a combination thereof. The following test methods shall be performed: dimensions and density; flexural strength; compressive strength; screw holding strength; apparent thermal conductivity; combustion characteristics; and maximum use temperatures.
SCOPE
1.1 This specification covers structural insulating board for general thermal insulating, fire-resistive, and marine bulkhead applications. The rigid, preformed structural insulating board is for use at temperatures up to 1700°F (927°C). For specific applications, the actual temperature limit shall be agreed upon between the manufacturer and the purchaser.  
1.2 The structural insulating board maintains its structural integrity after immersion in water.  
1.3 Rapid cycling over a wide temperature range is not recommended because of potential damage due to thermal shock.  
1.4 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.  
1.5 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.  
1.6 When the installation or use of thermal insulation materials, accessories and systems, may pose safety or health problems, the manufacturer shall provide the user appropriate current information regarding any known problems associated with the recommended use of the company's products, and shall also recommend protective measures to be employed in their safe utilization. The user shall establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

General Information

Status
Historical
Publication Date
28-Feb-2013
ICS
91.100.60 - Thermal and sound insulating materials
Technical Committee
C16 - Thermal Insulation
Drafting Committee
C16.20 - Homogeneous Inorganic Thermal Insulations
Current Stage
Ref Project

Relations

Replaces
ASTM C656-07 - Standard Specification for Structural Insulating Board, Calcium Silicate
Effective Date
01-Mar-2013
Referred By
ASTM C1558-19 - Standard Guide for Development of Standard Data Records for Computerization of Thermal Transmission Test Data for Thermal Insulation
Effective Date
01-Mar-2013

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ASTM C656-07(2013) - Standard Specification for Structural Insulating Board, Calcium SilicateASTM C656-07(2013) - Standard Specification for Structural Insulating Board, Calcium Silicate
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ASTM C656-07(2013) - Standard Specification for Structural Insulating Board, Calcium Silicate
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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:C656 −07 (Reapproved 2013)
Standard Specification for
Structural Insulating Board, Calcium Silicate
This standard is issued under the fixed designation C656; 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 C165 Test Method for Measuring Compressive Properties of
Thermal Insulations
1.1 This specification covers structural insulating board for
C168 Terminology Relating to Thermal Insulation
general thermal insulating, fire-resistive, and marine bulkhead
C177 Test Method for Steady-State Heat Flux Measure-
applications.Therigid,preformedstructuralinsulatingboardis
ments and Thermal Transmission Properties by Means of
for use at temperatures up to 1700°F (927°C). For specific
the Guarded-Hot-Plate Apparatus
applications, the actual temperature limit shall be agreed upon
C203 Test Methods for Breaking Load and Flexural Proper-
between the manufacturer and the purchaser.
ties of Block-Type Thermal Insulation
1.2 The structural insulating board maintains its structural
C303 Test Method for Dimensions and Density of Pre-
integrity after immersion in water.
formed Block and Board–Type Thermal Insulation
1.3 Rapid cycling over a wide temperature range is not C356 Test Method for Linear Shrinkage of Preformed High-
Temperature Thermal Insulation Subjected to Soaking
recommended because of potential damage due to thermal
shock. Heat
C390 Practice for Sampling and Acceptance of Thermal
1.4 The values stated in inch-pound units are to be regarded
Insulation Lots
as standard. The values given in parentheses are mathematical
C411 Test Method for Hot-Surface Performance of High-
conversions to SI units that are provided for information only
Temperature Thermal Insulation
and are not considered standard.
C447 Practice for Estimating the Maximum Use Tempera-
1.5 This standard does not purport to address all of the
ture of Thermal Insulations
safety concerns, if any, associated with its use. It is the
C518 Test Method for Steady-State Thermal Transmission
responsibility of the user of this standard to establish appro-
Properties by Means of the Heat Flow Meter Apparatus
priate safety and health practices and determine the applica-
C1045 Practice for Calculating Thermal Transmission Prop-
bility of regulatory limitations prior to use.
erties Under Steady-State Conditions
1.6 When the installation or use of thermal insulation
C1058 Practice for Selecting Temperatures for Evaluating
materials, accessories and systems, may pose safety or health
and Reporting Thermal Properties of Thermal Insulation
problems, the manufacturer shall provide the user appropriate
D1037 Test Methods for Evaluating Properties of Wood-
current information regarding any known problems associated
Base Fiber and Particle Panel Materials
with the recommended use of the company’s products, and
E136 Test Method for Behavior of Materials in a Vertical
shall also recommend protective measures to be employed in
Tube Furnace at 750°C
their safe utilization.The user shall establish appropriate safety
and health practices and determine the applicability of regula- 3. Terminology
tory requirements prior to use.
3.1 Definitions—The definitions in Terminology C168 shall
apply to the terms used in this specification.
2. Referenced Documents
4. Classification
2.1 ASTM Standards:
4.1 Thestructuralinsulatingboardsshallbeofthefollowing
types:
This specification is under the jurisdiction of ASTM Committee C16 on
4.1.1 Type I—Maximum use temperature 1400°F (760°C).
Thermal Insulation and is the direct responsibility of Subcommittee C16.20 on
Homogeneous Inorganic Thermal Insulations.
4.1.2 Type II—Maximum use temperature 1700°F (927°C).
Current edition approved March 1, 2013. Published March 2013. Originally
4.2 Thestructuralinsulatingboardsshallbeofthefollowing
approved in 1970. Last previous edition approved in 2007 as C656 – 07. DOI:
10.1520/C0656-07R13.
grades:
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 3 3
4.2.1 Grade 1—Typical density 36 lb/ft (577 kg/m ).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3 3
4.2.2 Grade 2—Typical density 46 lb/ft (737 kg/m ).
Standards volume information, refer to the standard’s Document Summary page on
3 3
the ASTM website. 4.2.3 Grade 3—Typical density 60 lb/ft (961 kg/m ).
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C656−07 (2013)
3 3
4.2.4 Grade 4—Typical density 14 lb/ft (224 kg/m ). 10. Qualification Requirements
3 3
4.2.5 Grade 5—Typical density 18 lb/ft (288 kg/m ).
10.1 Unless otherwise specified, the following requirements
3 3
4.2.6 Grade 6—Typical density 28 lb/ft (449 kg/m ).
shall be employed for the purpose of initial material or product
3 3
4.2.7 Grade 7—Typical density 40 lb/ft (641 kg/m ).
qualification.
3 3
4.2.8 Grade 8—Typical density 60 lb/ft (961 kg/m ).
10.1.1 Compressive strength,
10.1.2 Screw holding strength,
5. Ordering Information
10.1.3 Linear shrinkage and temperate of use,
5.1 The type, grade, and dimensions shall be specified by
10.1.4 Apparent thermal conductivity, and
the purchaser.
10.1.5 Combustion characteristics.
5.2 When a certification or test report, or both, are required,
it shall be specified by the purchaser.
11. Sampling
6. Materials and Manufacture
11.1 Calcium silicate structural insulating boards shall be
sampled in accordance with Practice C390. Specific provisions
6.1 Calcium silicate structural insulating board shall be
for sampling shall be agreed upon between the purchaser and
composed of hydrated calcium silicate with natural or man-
the supplier.
made fibers or fillers, or a combination thereof. Asbestos shall
not be used as an ingredient or component of the product.
12. Test Methods
7. Other Requirements
12.1 Dimensions and Density—Use Test Method C303,
7.1 Calcium silicate structural insulating board shall con-
except that specimens shall be full-size sheets for determina-
form to the physical and mechanical requirements specified in
tion of length and width and at least 12-in. (300-mm) square
Table 1.
for determination of thickness and density.
12.2 Flexural Strength—Use Test Methods C203 on a 1-in.
8. Dimensions and Permissible Variations
(25-mm) thick specimen.
8.1 Calcium silicate s
...

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1.1 This specification2 covers the types, physical properties, and dimensions of cellular polystyrene boards with or without facings or coatings made by molding (EPS) or extrusion (XPS) of expandable polystyrene. Products manufactured to this specification are intended for use as thermal insulation for temperatures from –65 to +165°F (–53.9 to +73.9°C). This specification does not apply to laminated products manufactured with any type of rigid board facer including fiberboard, perlite board, gypsum board, or oriented strand board.  
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