ASTM C1262-98

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: 09-Nov-1998
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.03 - Concrete Masonry Units and Related Units

Relations

• Replaced By: ASTM C1262-98e1 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
• Effective Date: 10-Nov-1998

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: C 1262 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
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.
strength and absorption values by themselves have been shown by
1. Scope *
research to not be reliable indicators of durability, they have been shown
1.1 This test method covers the resistance to freezing and
to be good reference values for units manufactured from a given set of
thawing manufactured concrete masonry and related concrete
materials.
units. Units are tested either in water or in a saline solution
5. Apparatus
depending on the intended use of the units in actual service.
5.1 Freezing-and-Thawing Apparatus:
NOTE 1—Concrete masonry and related concrete units include units
5.1.1 In the event that a chamber or chambers are used to
such as hollow and solid concrete masonry units, concrete brick, segmen-
tal retaining wall units, concrete pavers, and concrete roof pavers. subject the specimens to the specified freezing or thawing
cycles, or both, the chamber or chambers shall be capable of
1.2 This standard does not purport to address all of the
maintaining the air temperature throughout the chamber within
safety concerns, if any, associated with its use. It is the
the specified test ranges when measured at any given time. If
responsibility of the user of this standard to establish appro-
the apparatus operates automatically, it must be able to provide
priate safety and health practices and determine the applica-
reproducible cycles within the specified temperature require-
bility of regulatory limitations prior to use.
ments.
2. Referenced Documents 5.1.2 The apparatus includes a non-rigid plastic container
for each test specimen and test specimen supports as illustrated
2.1 ASTM Standards:
in Fig. 1. The containers shall be of sufficient size to provide a
C 140 Test Methods of Sampling and Testing Concrete
1 1
2 minimum of ⁄8 in. (3 mm) and a maximum of 1 ⁄2 in. (38 mm)
Masonry Units
water surrounding the specimen. Test specimen supports to
C 1093 Practice for the Accreditation of Testing Agencies
1
2
hold the specimen above the container bottom shall be two ⁄8
for Unit Masonry
1
6 ⁄24 in. (3 6 1 mm) rods of a solid noncorrosive, nonabsorp-
C 1209 Terminology of Concrete Masonry Units and Re-
2
tive material (brass, plastic, etc.). The container shall be flat
lated Units
enough that when the specimen coupon is set on the support
1
3. Terminology rods the specimen shall not deviate from level by more than ⁄16
in. (2 mm) from one end of the specimen to the opposite end.
3.1 Terminology defined in Terminology C 1209 shall apply
5.2 Temperature-Measuring Equipment—Thermometers,
for this test method.
resistance thermometers, or thermocouples, capable of measur-
4. Significance and Use
ing the temperature at various points within the test chamber to
within 2°F (1°C).
4.1 The procedure described in this test method is intended
5.3 Scales—Scales for weighing full-size specimens shall
to determine the effects of freezing and thawing on concrete
have a capacity of at least 50 % greater than the weight of the
units in the presence of water or saline solution.
largest specimen tested and shall be accurate to at least 1 g
4.2 The procedure is not intended to provide a quantitative
(0.002 lb). Scales for weighing the filter paper and specimen
measure of the length of service that may be expected from a
residue (spall), as required in 8.2.3, shall be accurate to at least
specific type of concrete unit.
0.2 g (0.0005 lb).
NOTE 2—The testing laboratory performing this test method should be
evaluated in accordance with Practice C 1093.
6. Sampling
NOTE 3—Compressive strength and absorption tests should be per-
6.1 Selection of Test Specimens—Select whole units repre-
formed on different but representative specimens. While compressive
sentative of the lot from which they are selected. The units
shall be free from visible cracks or structural defects.
1
This test method is under the jurisdiction of ASTM Committee C-15 on
6.2 Number of Specimens—Select five units for freezing
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units.
and thawing tests. If compression and absorption tests are to be
Current edition approved Nov. 10, 1998.
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