ASTM C1202-22e1
(Test Method)Standard Test Method for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
Standard Test Method for Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration
SIGNIFICANCE AND USE
4.1 This test method covers the laboratory evaluation of the electrical conductance of concrete samples to provide a rapid indication of their resistance to chloride ion penetration. In most cases the electrical conductance results have shown good correlation with chloride ponding tests, such as AASHTO T259, on companion slabs cast from the same concrete mixtures (Refs 1-5).
4.2 This test method is suitable for evaluation of materials and material proportions for design purposes and research and development.
4.3 Sample age has significant effects on the test results, depending on the type of concrete and the curing procedure. Most concretes, if properly cured, become progressively and significantly less permeable with time.
4.4 This test method was developed originally for evaluations of alternative materials, but in practice its use has evolved to applications such as quality control and acceptance testing. Factors such as ingredient materials used in concrete mixtures and the method and duration of curing test specimens affect the results of this test (see Note 1). When this method is used for mixture qualification and acceptance testing, it is imperative that the curing procedures and the age at time of testing be clearly specified.
Note 1: When using this test for determining acceptability of concrete mixtures, statistically-based criteria and test age for prequalification, or for acceptance based on jobsite samples, should be stated in project specifications. Acceptance criteria for this test should consider the sources of variability affecting the results and ensure balanced risk between supplier and purchaser. The anticipated exposure conditions and time before a structure will be put into service should be considered. One approach to establishing criteria is discussed in Ref (6).
4.5 Table X1.1 in Appendix X1 provides a qualitative relationship between the results of this test and the chloride ion penetrability of concrete.
4.6 Care should b...
SCOPE
1.1 This test method covers the determination of the electrical conductance of concrete to provide a rapid indication of its resistance to the penetration of chloride ions. This test method is applicable to types of concrete where correlations have been established between this test procedure and long-term chloride ponding procedures such as those described in AASHTO T 259. Examples of such correlations are discussed in Refs (1-5).2
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation: C1202 − 22
Standard Test Method for
Electrical Indication of Concrete’s Ability to Resist Chloride
1
Ion Penetration
This standard is issued under the fixed designation C1202; 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.
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ε NOTE—Equation 2’s legend was editorially corrected in June 2022.
1. Scope* 2. Referenced Documents
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1.1 This test method covers the determination of the elec- 2.1 ASTM Standards:
trical conductance of concrete to provide a rapid indication of
C31/C31M Practice for Making and Curing Concrete Test
its resistance to the penetration of chloride ions. This test
Specimens in the Field
method is applicable to types of concrete where correlations C42/C42M Test Method for Obtaining and Testing Drilled
have been established between this test procedure and long-
Cores and Sawed Beams of Concrete
term chloride ponding procedures such as those described in
C192/C192M Practice for Making and Curing ConcreteTest
AASHTO T 259. Examples of such correlations are discussed
Specimens in the Laboratory
2
in Refs (1-5).
C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
1.2 The values stated in SI units are to be regarded as
C802 Practice for Conducting an Interlaboratory Test Pro-
standard. No other units of measurement are included in this
gram to Determine the Precision of Test Methods for
standard.
Construction Materials
1.3 The text of this standard references notes and footnotes
C1542/C1542M Test Method for Measuring Length of Con-
which provide explanatory material. These notes and footnotes
crete Cores
(excluding those in tables and figures) shall not be considered
2.2 AASHTO Standard:
as requirements of the standard.
T 259 Method of Test for Resistance of Concrete to Chlo-
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1.4 This standard does not purport to address all of the
ride Ion Penetration
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Summary of Test Method
priate safety, health, and environmental practices and deter-
3.1 This test method consists of monitoring the amount of
mine the applicability of regulatory limitations prior to use.
electricalcurrentpassedthrough50 mmthickslicesof100 mm
1.5 This international standard was developed in accor-
nominal diameter cores or cylinders during a 6 h period. A
dance with internationally recognized principles on standard-
potential difference of 60Vdc is maintained across the ends of
ization established in the Decision on Principles for the
the specimen, one of which is immersed in a sodium chloride
Development of International Standards, Guides and Recom-
solution, the other in a sodium hydroxide solution. The total
mendations issued by the World Trade Organization Technical
charge passed, in coulombs, has been found to be related to the
Barriers to Trade (TBT) Committee.
resistance of the specimen to chloride ion penetration.
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This test method is under the jurisdiction of ASTM Committee C09 on
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Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
C09.66 on Concrete’s Resistance to Fluid Penetration. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved April 1, 2022. Published May 2022. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1991. Last previous edition approved in 2019 as C1202 – 19. DOI: the ASTM website.
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10.1520/C1202-22E01. Methods of Sampling and Testing, 1986, available from American Association
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The boldface numbers in parentheses refer to a list of references at the end of of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW,
this standard. Suite 249, Washington, DC 20001, http://www.transportation.org.
*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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C1202 − 22
4. Significance and Use values, that is, lower resistance to chloride ion penetration,
than from tests on identical concrete mixtures (controls)
4.1 This test method covers the laboratory evaluation of the
without calcium nitrite. However, long-term chloride ponding
electrical conductance of
...
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