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ASTM C1262-05

(Test Method)

Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units

Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units

SCOPE
1.1 This test method covers the resistance to freezing and thawing manufactured concrete masonry and related concrete units. Units are tested either in water or in a saline solution depending on the intended use of the units in actual service.
Note 1—Concrete masonry and related concrete units include units such as hollow and solid concrete masonry units, concrete brick, segmental retaining wall units, concrete pavers, and concrete roof pavers.
1.2 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.

General Information

Status
Historical
Publication Date
31-Jan-2005
ICS
91.080.40 - Concrete structures
Technical Committee
C15 - Manufactured Masonry Units
Drafting Committee
C15.03 - Concrete Masonry Units and Related Units
Current Stage
Ref Project

Relations

Replaces
ASTM C1262-98e1 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
Effective Date
01-Feb-2005
Replaced By
ASTM C1262-05a - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
Effective Date
15-May-2005

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ASTM C1262-05 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete UnitsASTM C1262-05 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
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ASTM C1262-05 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C1262–05
Standard Test Method for
Evaluating the Freeze-Thaw Durability of Manufactured
1
Concrete Masonry 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 4.2 The procedure is not intended to provide a quantitative
measure to determine an expected length of service for a
1.1 This test method covers the resistance to freezing and
specific type of concrete unit.
thawing manufactured concrete masonry and related concrete
units. Units are tested either in water or in a saline solution
NOTE 2—The testing laboratory performing this test method should be
depending on the intended use of the units in actual service. evaluated in accordance with Practice C 1093.
NOTE 3—Compressive strength and absorption tests should be per-
NOTE 1—Concrete masonry and related concrete units include units
formed on different but representative specimens. While compressive
such as hollow and solid concrete masonry units, concrete brick, segmen-
strength and absorption values by themselves have been shown by
tal retaining wall units, concrete pavers, and concrete roof pavers.
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
1.2 This standard does not purport to address all of the
materials.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Apparatus
priate safety and health practices and determine the applica-
5.1 Freezing-and-Thawing Apparatus:
bility of regulatory limitations prior to use.
5.1.1 In the event that a chamber or chambers are used to
2. Referenced Documents subject the specimens to the specified freezing or thawing
2
cycles, or both, the chamber or chambers shall be capable of
2.1 ASTM Standards:
maintaining the air temperature throughout the chamber within
C 140 Test Methods of Sampling and Testing Concrete
the specified test ranges when measured at any given time. If
Masonry Units and Related Units
the apparatus operates automatically, it must be able to provide
C 1093 Practice for the Accreditation of Testing Agencies
reproducible cycles within the specified temperature require-
for Unit Masonry
ments.
C 1209 Terminology of Concrete Masonry Units and Re-
5.1.2 The apparatus includes a non-rigid plastic container
lated Units
for each test specimen and test specimen supports as illustrated
3. Terminology
in Fig. 1. The containers shall be of sufficient size to provide a
1 1
minimum of ⁄8 in. (3 mm) and a maximum of 1 ⁄2 in. (38 mm)
3.1 Terminology defined inTerminology C 1209 shall apply
water (or saline solution) surrounding the specimen. Test
for this test method.
specimen supports to hold the specimen above the container
1 1
4. Significance and Use
bottom shall be two ⁄8 6 ⁄24 in. (3 6 1 mm) rods of a solid
noncorrosive, nonabsorptive material (brass, plastic, etc.). The
4.1 The procedure described in this test method is intended
container shall be flat enough that when the specimen coupon
to determine the effects of freezing and thawing on concrete
is set on the support rods the specimen shall not deviate from
units in the presence of water or saline solution.
1
level by more than ⁄16 in. (2 mm) from one end of the
specimen to the opposite end.
1
This test method is under the jurisdiction of ASTM Committee C15 on
5.2 Temperature-Measuring Equipment—Thermometers,
Manufactured Masonry Units and is the direct responsibility of Subcommittee
resistance thermometers, or thermocouples, capable of measur-
C15.03 on Concrete Masonry Units and Related Units.
ing the temperature at various points within the test chamber to
Current edition approved Feb. 1, 2005. Published April 2005. Originally
e1
approved in 1994. Last previous edition approved in 1998 as C 1262–98 .
within 2°F (1°C).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.3 Scales—Scales for weighing full-size specimens shall
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
have a capacity of at least 50 % greater than the weight of the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. largest specimen tested and shall be accurate to at least 1 g
*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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