ASTM C1262-08a
(Test Method)Standard Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units
Standard Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units
SIGNIFICANCE AND USE
The procedure described in this test method is intended to determine the effects of freezing and thawing on SRW and related units in the presence of water or saline solution.
The procedure is not intended to provide a quantitative measure to determine an expected length of service for a specific type of concrete unit.
Note 2—The testing laboratory performing this test method should be evaluated in accordance with Practice C 1093.
SCOPE
1.1 This test method covers the resistance to freezing and thawing of dry-cast segmental retaining wall (SRW) units (see Specification C 1372) and related concrete units. Units are tested in a test solution that is either water or 3 % saline solution depending on the intended use of the units in actual service.
Note 1—Related concrete units include units such as hollow and solid concrete masonry units, concrete brick, and concrete roof pavers.
1.2 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.
1.3 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:C1262–08a
Standard Test Method for
Evaluating the Freeze-Thaw Durability of Dry-Cast
1
Segmental Retaining Wall Units and Related Concrete Units
This standard is issued under the fixed designation C1262; 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* 3. Terminology
1.1 This test method covers the resistance to freezing and 3.1 Terminology defined in Terminology C1209 shall apply
thawing of dry-cast segmental retaining wall (SRW) units (see for this test method.
Specification C1372) and related concrete units. Units are
4. Significance and Use
tested in a test solution that is either water or 3 % saline
solution depending on the intended use of the units in actual 4.1 The procedure described in this test method is intended
to determine the effects of freezing and thawing on SRW and
service.
related units in the presence of water or saline solution.
NOTE 1—Related concrete units include units such as hollow and solid
4.2 The procedure is not intended to provide a quantitative
concrete masonry units, concrete brick, and concrete roof pavers.
measure to determine an expected length of service for a
1.2 The values stated in inch-pound units are to be regarded
specific type of concrete unit.
as standard. The values given in parentheses are mathematical
NOTE 2—The testing laboratory performing this test method should be
conversions to SI units that are provided for information only
evaluated in accordance with Practice C1093.
and are not considered standard.
1.3 This standard does not purport to address all of the
5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Freezing-and-Thawing Chamber—Use a chamber that
responsibility of the user of this standard to establish appro-
has:
priate safety and health practices and determine the applica-
5.1.1 Forced air circulation,
bility of regulatory limitations prior to use.
5.1.2 Aprogrammable air-temperature controller capable of
automatically performing at least two freezing and thawing
2. Referenced Documents
cycles per 24-h period during testing,
2
2.1 ASTM Standards:
5.1.3 A temperature range of at least –10 to 100°F (–24 to
C140 Test Methods for Sampling and Testing Concrete
38°C), and
Masonry Units and Related Units
5.1.4 The capability of maintaining the air temperature
C1093 Practice for Accreditation of Testing Agencies for
throughout the chamber within the specified temperature
Masonry
ranges for the duration of the test cycle.
C1209 Terminology of Concrete Masonry Units and Re-
5.2 Containers—Use containers that are:
3
lated Units
5.2.1 Made of non-rigid plastic,
C1372 Specification for Dry-Cast Segmental Retaining
5.2.2 Of sufficient size to contain each test specimen and
Wall Units
specimen supports as illustrated in Fig. 1,
1
5.2.3 Of sufficient size to provide a minimum of ⁄8 in. (3
1
mm) and a maximum of 1 ⁄2 in. (38 mm) of test solution
1
This test method is under the jurisdiction of ASTM Committee C15 on
surrounding the sides of the specimen,
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units.
5.2.4 Supplied with a tightly-fitting lid to reduce evapora-
Current edition approved Nov. 1, 2008. Published December 2008. Originally
tion, and
approved in 1994. Last previous edition approved in 2008 as C1262 – 08. DOI:
5.2.5 Flat enough so that the specimen will not deviate from
10.1520/C1262-08A.
1
2
level by more than ⁄16 in. (2 mm) from one end of the
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
specimen to the opposite end when placed on the support rods.
Standards volume information, refer to the standard’s Document Summary page on
5.3 Specimen Supports—Support the specimen above the
the ASTM website.
3 container bottom. Use supports that are:
Withdrawn. The last approved version of this historical standard is referenced
1 1
on www.astm.org. 5.3.1 Rods having dimensions of ⁄8 6 ⁄24 in. (3 6 1 mm),
*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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C1262–08a
correlation among the properties. If this is not possible, then
obtain compressive strength and absorption specimens from
different units manufactured in the same production lot as the
freeze-thaw specimens.Take compressive strength and absorp-
tion specimens in accordance with Test Metho
...
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:C1262–08 Designation:C1262–08a
Standard Test Method for
Evaluating the Freeze-Thaw Durability of Dry-Cast
1
Segmental Retaining Wall Units and Related Concrete Units
This standard is issued under the fixed designation C 1262; 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*
1.1 This test method covers the resistance to freezing and thawing of dry-cast segmental retaining wall (SRW) units (see
Specification C 1372) and related concrete units. Units are tested in a test solution that is either water or 3 % saline solution
depending on the intended use of the units in actual service.
NOTE 1—Related concrete units include units such as hollow and solid concrete masonry units, concrete brick, and concrete roof pavers.
1.2 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.
1.3 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:
C 140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C 1093 Practice for Accreditation of Testing Agencies for Masonry
C 1209Terminology of Concrete Masonry Units and Related Units Terminology of Concrete Masonry Units and Related Units
C 1372 Specification for Dry-Cast Segmental Retaining Wall Units
3. Terminology
3.1 Terminology defined in Terminology C 1209 shall apply for this test method.
4. Significance and Use
4.1 The procedure described in this test method is intended to determine the effects of freezing and thawing on SRWand related
units in the presence of water or saline solution.
4.2 The procedure is not intended to provide a quantitative measure to determine an expected length of service for a specific
type of concrete unit.
NOTE 2—The testing laboratory performing this test method should be evaluated in accordance with Practice C 1093.
5. Apparatus
5.1 Freezing-and-Thawing Apparatus :
5.1.1In the event that a chamber or chambers are used to subject the specimens to the specified freezing or thawing cycles, or
both, the chamber or chambers shall be capable of maintaining the air temperature throughout the chamber within the specified
testrangeswhenmeasuredatanygiventime.Iftheapparatusoperatesautomatically,itmustbeabletoprovidereproduciblecycles
within the specified temperature requirements.
5.1.2The apparatus includes a non-rigid plastic container for each test specimen and test specimen supports as illustrated in
Freezing-and-Thawing Chamber —Use a chamber that has:
5.1.1 Forced air circulation,
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC15onManufacturedMasonryUnitsandisthedirectresponsibilityofSubcommitteeC15.03onConcrete
Masonry Units and Related Units.
Current edition approved JulyNov. 1, 2008. Published JulyDecember 2008. Originally approved in 1994. Last previous edition approved in 20072008 as C 1262 – 078.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
C1262–08a
5.1.2 Aprogrammable air-temperature controller capable of automatically performing at least two freezing and thawing cycles
per 24-h period during testing,
5.1.3 A temperature range of at least –10 to 100°F (–24 to 38°C), and
5.1.4 The capability of maintaining the air temperature throughout the chamber within the specified temperature ranges for the
duration of the test cycle.
5.2 Containers—Use containers that are:
5.2.1 Made of non-rigid plastic,
5.2.2 Of sufficient size to contain each test specimen and specimen supports as illustrated in Fig. 1. The containers shall be of
1
sufficient size to provide a mini
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