ASTM C1262-08

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Designation:C1262–08
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* 4. Significance and Use
1.1 This test method covers the resistance to freezing and 4.1 The procedure described in this test method is intended
thawing of dry-cast segmental retaining wall (SRW) units and to determine the effects of freezing and thawing on SRW and
related concrete units. Units are tested in a test solution that is related units in the presence of water or saline solution.
either water or 3 % saline solution depending on the intended 4.2 The procedure is not intended to provide a quantitative
use of the units in actual service. measure to determine an expected length of service for a
specific type of concrete unit.
NOTE 1—Related concrete units include units such as hollow and solid
concrete masonry units, concrete brick, and concrete roof pavers.
NOTE 2—The testing laboratory performing this test method should be
evaluated in accordance with Practice C 1093.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
5. Apparatus
conversions to SI units that are provided for information only
5.1 Freezing-and-Thawing Apparatus:
and are not considered standard.
5.1.1 In the event that a chamber or chambers are used to
1.3 This standard does not purport to address all of the
subject the specimens to the specified freezing or thawing
safety concerns, if any, associated with its use. It is the
cycles, or both, the chamber or chambers shall be capable of
responsibility of the user of this standard to establish appro-
maintaining the air temperature throughout the chamber within
priate safety and health practices and determine the applica-
the specified test ranges when measured at any given time. If
bility of regulatory limitations prior to use.
the apparatus operates automatically, it must be able to provide
reproducible cycles within the specified temperature require-
2. Referenced Documents
ments.
2
2.1 ASTM Standards:
5.1.2 The apparatus includes a non-rigid plastic container
C 140 Test Methods for Sampling and Testing Concrete
for each test specimen and test specimen supports as illustrated
Masonry Units and Related Units
in Fig. 1. The containers shall be of sufficient size to provide a
C 1093 Practice for Accreditation of Testing Agencies for
1 1
minimum of ⁄8 in. (3 mm) and a maximum of 1 ⁄2 in. (38 mm)
Masonry
test solution surrounding the specimen. The container shall
C 1209 Terminology of Concrete Masonry Units and Re-
have a tightly fitting lid to reduce evaporation. Test specimen
lated Units
supports to hold the specimen above the container bottom shall
1 1
be ⁄8 6 ⁄24 in. (3 6 1 mm) rods of a solid noncorrosive,
3. Terminology
nonabsorptive material (brass, plastic, etc.). Support the speci-
3.1 Terminology defined inTerminology C 1209 shall apply
men in both the longitudinal and transverse directions (see
for this test method.
Note 3). The container shall be flat enough that when the
specimen coupon is set on the support rods the specimen shall
1
1
This test method is under the jurisdiction of ASTM Committee C15 on
not deviate from level by more than ⁄16 in. (2 mm) from one
Manufactured Masonry Units and is the direct responsibility of Subcommittee
end of the specimen to the opposite end.
C15.03 on Concrete Masonry Units and Related Units.
Current edition approved July 1, 2008. Published July 2008. Originally approved
NOTE 3—Examples of longitudinal and transverse support configura-
in 1994. Last previous edition approved in 2007 as C 1262 – 07.
tions include placing the supports in I, Z, or box configurations.
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
5.2 Temperature-Measuring Equipment:
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.
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C1262–08
selves have been shown by research to not be reliable indicators of
durability, they have been shown to be good reference values for units
manufactured from a given set of materials.
6.3 Identification—Mark each freezing–
...