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ASTM C1262-98e1

(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
09-Nov-1998
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 C1262-98 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
Effective Date
10-Nov-1998
Replaced By
ASTM C1262-05 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
Effective Date
01-Feb-2005

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ASTM C1262-98e1 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete UnitsASTM C1262-98e1 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Manufactured Concrete Masonry Units and Related Concrete Units
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ASTM C1262-98e1 - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation:C1262–98
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
e NOTE—A temperature conversion error was corrected in Paragraph 8.2.1 editorially in April 2002.
NOTE 2—The testing laboratory performing this test method should be
1. Scope *
evaluated in accordance with Practice C 1093.
1.1 This test method covers the resistance to freezing and
NOTE 3—Compressive strength and absorption tests should be per-
thawing manufactured concrete masonry and related concrete
formed on different but representative specimens. While compressive
units. Units are tested either in water or in a saline solution
strength and absorption values by themselves have been shown by
depending on the intended use of the units in actual service. 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
NOTE 1—Concrete masonry and related concrete units include units
materials.
such as hollow and solid concrete masonry units, concrete brick, segmen-
tal retaining wall units, concrete pavers, and concrete roof pavers.
5. Apparatus
1.2 This standard does not purport to address all of the
5.1 Freezing-and-Thawing Apparatus:
safety concerns, if any, associated with its use. It is the
5.1.1 In the event that a chamber or chambers are used to
responsibility of the user of this standard to establish appro-
subject the specimens to the specified freezing or thawing
priate safety and health practices and determine the applica-
cycles, or both, the chamber or chambers shall be capable of
bility of regulatory limitations prior to use.
maintaining the air temperature throughout the chamber within
the specified test ranges when measured at any given time. If
2. Referenced Documents
the apparatus operates automatically, it must be able to provide
2.1 ASTM Standards:
reproducible cycles within the specified temperature require-
C 140 Test Methods of Sampling and Testing Concrete
ments.
2
Masonry Units
5.1.2 The apparatus includes a non-rigid plastic container
C 1093 Practice for the Accreditation of Testing Agencies
for each test specimen and test specimen supports as illustrated
2
for Unit Masonry
in Fig. 1. The containers shall be of sufficient size to provide a
C 1209 Terminology of Concrete Masonry Units and Re- 1 1
minimum of ⁄8 in. (3 mm) and a maximum of 1 ⁄2 in. (38 mm)
2
lated Units
water surrounding the specimen. Test specimen supports to
1
hold the specimen above the container bottom shall be two ⁄8
3. Terminology
1
6 ⁄24 in. (3 6 1 mm) rods of a solid noncorrosive, nonabsorp-
3.1 Terminology defined inTerminology C 1209 shall apply
tive material (brass, plastic, etc.). The container shall be flat
for this test method.
enough that when the specimen coupon is set on the support
1
rodsthespecimenshallnotdeviatefromlevelbymorethan ⁄16
4. Significance and Use
in. (2 mm) from one end of the specimen to the opposite end.
4.1 The procedure described in this test method is intended
5.2 Temperature-Measuring Equipment—Thermometers,
to determine the effects of freezing and thawing on concrete
resistance thermometers, or thermocouples, capable of measur-
units in the presence of water or saline solution.
ing the temperature at various points within the test chamber to
4.2 The procedure is not intended to provide a quantitative
within 2°F (1°C).
measure of the length of service that may be expected from a
5.3 Scales—Scales for weighing full-size specimens shall
specific type of concrete unit.
have a capacity of at least 50 % greater than the weight of the
largest specimen tested and shall be accurate to at least 1 g
(0.002 lb). Scales for weighing the filter paper and specimen
1
This test method is under the jurisdiction of ASTM Committee C15 on
residue (spall), as required in 8.2.3, shall be accurate to at least
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units.
0.2 g (0.0005 lb).
Current edition approved Nov. 10, 1998. Published March 1999. Originally
published as C 1262–94. Last previous edition C 1262–97.
2
Annual Book of ASTM Standards, Vol 04.05.
*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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