ASTM C332-09
(Specification)Standard Specification for Lightweight Aggregates for Insulating Concrete
Standard Specification for Lightweight Aggregates for Insulating Concrete
ABSTRACT
This specification covers lightweight aggregates intended for use in concrete not exposed to the weather, in which the prime consideration is the thermal insulating property of the resulting concrete. Two general types of lightweight aggregate are group I aggregates, which are prepared by expanding products, such as perlite or vermiculite, and group II aggregates which are prepared by expanding, calcining, or sintering products such as blast-furnace slag, clay, diatomite, fly ash, shale, or slate; and aggregates prepared by processing natural materials, such as pumice, scoria, or tuff. The thermal insulating properties of concrete made from the lightweight aggregate under test shall conform to the maximum average thermal conductivity indicated in the specification. To ensure reasonable uniformity in the gradation of successive shipments of lightweight aggregates, fineness modulus determination shall be made periodically. The aggregate shall be composed predominantly of lightweight cellular and granular inorganic material. The test methods for insulating concrete properties include specimen preparation, then concrete density determination, and determinacy of thermal conductivity. When lightweight aggregates covered by this specification are delivered in packages, the name of the manufacturer, type of aggregate, and minimum mass and approximate volume of the contents shall be plainly indicated thereon.
SCOPE
1.1 This specification covers lightweight aggregates intended for use in concrete not exposed to the weather, in which the prime consideration is the thermal insulating property of the resulting concrete.
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 With regard to sieve size and the size of aggregate as determined by the use of testing sieves, the values in inch-pound units are shown for the convenience of the user; however, the standard sieve designation shown in parentheses is the standard value as stated in Specification E11.
1.3.1 With regard to other units of measure, 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.
1.4 The following precautionary caveat pertains only to the test method portion, Section 6, of the specification: 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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Designation:C332 −09
Standard Specification for
1
Lightweight Aggregates for Insulating Concrete
This standard is issued under the fixed designation C332; 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* and Voids in Aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse
1.1 This specification covers lightweight aggregates in-
Aggregates
tended for use in concrete not exposed to the weather, in which
C177 Test Method for Steady-State Heat Flux Measure-
the prime consideration is the thermal insulating property of
ments and Thermal Transmission Properties by Means of
the resulting concrete.
the Guarded-Hot-Plate Apparatus
1.2 The text of this standard references notes and footnotes
D75 Practice for Sampling Aggregates
which provide explanatory material. These notes and footnotes
E11 Specification for Woven Wire Test Sieve Cloth and Test
(excluding those in tables and figures) shall not be considered
Sieves
as requirements of the standard.
3. Classification
1.3 With regard to sieve size and the size of aggregate as
3.1 Two general types of lightweight aggregate are covered
determined by the use of testing sieves, the values in inch-
by this specification as follows:
pound units are shown for the convenience of the user;
3.1.1 Group I—Aggregates prepared by expanding products
however, the standard sieve designation shown in parentheses
such as perlite or vermiculite.
is the standard value as stated in Specification E11.
1.3.1 With regard to other units of measure, the values
NOTE 1—These aggregates generally produce concrete having a density
3 3
stated in inch-pound units are to be regarded as standard. The
from 15 to 50 lb/ft (240 to 800 kg/m ), the thermal conductivity of which
2
may be expected to range from 0.45 to 1.50 Btu·in/h·ft ·°F (0.065 to 0.22
values given in parentheses are mathematical conversions to SI
W/m·K).
units that are provided for information only and are not
considered standard. 3.1.2 Group II—Aggregates prepared by expanding,
calcining, or sintering products such as blast-furnace slag, clay,
1.4 The following precautionary caveat pertains only to the
diatomite, fly ash, shale, or slate; and aggregates prepared by
test method portion, Section 6, of the specification: This
processing natural materials, such as pumice, scoria, or tuff.
standarddoesnotpurporttoaddressallofthesafetyconcerns,
ifany,associatedwithitsuse.Itistheresponsibilityoftheuser
NOTE 2—These aggregates generally produce concrete having a density
3 3
of this standard to establish appropriate safety and health from 45 to 90 lb/ft (720 to 1440 kg/m ), the thermal conductivity of
2
which may be expected to range from 1.05 to 3.00 BTU·in/h·ft · °F (0.15
practices and determine the applicability of regulatory limita-
to 0.43 W/m·K).
tions prior to use.
3.2 The aggregate shall be composed predominantly of
2. Referenced Documents
lightweight cellular and granular inorganic material.
2
2.1 ASTM Standards:
4. Physical Properties
C29/C29M Test Method for Bulk Density (“Unit Weight”)
4.1 Insulating Properties—The thermal insulating proper-
ties of concrete made from the lightweight aggregate under test
1
shall conform to the following limits:
This specification is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
Maximum Average 28-Day Maximum Average
C09.21 on Lightweight Aggregates and Concrete.
Oven-Dry Thermal Conductivity,
Current edition approved Nov. 1, 2009. Published December 2009. Originally 3 2
Bulk Density, lb/ft Btu·in/h·ft ·°F
approved in 1954. Last previous edition approved in 2007 as C332 – 07. DOI: 3
(kg/m ) (W/m·K)
10.1520/C0332-09.
50 (800) 1.50 (0.22)
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
90 (1440) 3.00 (0.43)
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.2 Grading—The grading shall conform to the require-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
ments shown in Table 1.
*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
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C332−09
TABLE 1 Grading Requirements for Lightweight Aggregates for Insulating Concrete
Nominal Percentages (Mass) Passing Sieves Having Square Openings
Size
19.0-mm 12.5-mm 9.5-mm 4.75-mm 2.36-mm 1.18-mm 600-µm 300
...
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:C332–07 Designation: C332 – 09
Standard Specification for
1
Lightweight Aggregates for Insulating Concrete
This standard is issued under the fixed designation C332; 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*
1.1 This specification covers lightweight aggregates intended for use in concrete not exposed to the weather, in which the prime
consideration is the thermal insulating property of the resulting concrete.
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 With regard to sieve size and the size of aggregate as determined by the use of testing sieves, the values in inch-pound units
are shown for the convenience of the user; however, the standard sieve designation shown in parentheses is the standard value as
stated in Specification E11.
1.3.1With regard to other units of measure, the values stated in inch-pound units are to be regarded as standard.
1.3.1 With regard to other units of measure, 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.
1.4 The following precautionary caveat pertains only to the test method portion, Section 6, of the specification: 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C29/C29M Test Method for Bulk Density (Unit Weight) and Voids in Aggregate
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
D75 Practice for Sampling Aggregates
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Classification
3.1 Two general types of lightweight aggregate are covered by this specification as follows:
3.1.1 Group I—Aggregates prepared by expanding products such as perlite or vermiculite.
3 3
NOTE 1—These aggregates generally produce concrete having a density from 15 to 50 lb/ft (240 to 800 kg/m ), the thermal conductivity of which may
2
be expected to range from 0.45 to 1.50 Btu·in/h·ft ·°F (0.065 to 0.22 W/m·K).
3.1.2 Group II—Aggregates prepared by expanding, calcining, or sintering products such as blast-furnace slag, clay, diatomite,
fly ash, shale, or slate; and aggregates prepared by processing natural materials, such as pumice, scoria, or tuff.
3 3
NOTE 2—These aggregates generally produce concrete having a density from 45 to 90 lb/ft (720 to 1440 kg/m ), the thermal conductivity of which
2
may be expected to range from 1.05 to 3.00 BTU·in/h·ft · °F (0.15 to 0.43 W/m·K).
3.2 The aggregate shall be composed predominantly of lightweight cellular and granular inorganic material.
1
This specification is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.21 on
Lightweight Aggregates and Concrete.
Current edition approved July 15, 2007. Published August 2007. Originally approved in 1954. Last previous edition approved in 1999 as C332–99. DOI:
10.1520/C0332-07.
Current edition approved Nov. 1, 2009. Published December 2009. Originally approved in 1954. Last previous edition approved in 2007 as C332 – 07. DOI:
10.1520/C0332-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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
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C332 – 09
4. Physical Properties
4.1 Insulating Proper
...
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