ASTM C1202-12
(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
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).
This test method is suitable for evaluation of materials and material proportions for design purposes and research and development.
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.
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.
Table X1.1 in Appendix X1 provides a qualitative relationship between the results of this test and the chloride ion penetrability of concrete.
Care should be taken in interpreting results...
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.
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 and health practices and determine the applicability of regulatory limitations prior to use. ^REFERENCE:
ASTM Standards:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
AASHTO Standard:
T 259 Method of Test for Resistance of Concrete to Chloride Ion Penetration
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Designation: C1202 − 12
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.
1. Scope* C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
1.1 This test method covers the determination of the elec-
2.2 AASHTO Standard:
trical conductance of concrete to provide a rapid indication of
T 259 Method of Test for Resistance of Concrete to Chlo-
its resistance to the penetration of chloride ions. This test
4
ride Ion Penetration
method is applicable to types of concrete where correlations
have been established between this test procedure and long-
3. Summary of Test Method
term chloride ponding procedures such as those described in
AASHTO T 259. Examples of such correlations are discussed 3.1 This test method consists of monitoring the amount of
2
in Refs 1-5. electrical current passed through 50-mm thick slices of
100-mm nominal diameter cores or cylinders during a 6-h
1.2 The values stated in SI units are to be regarded as
period. A potential difference of 60 V dc is maintained across
standard. No other units of measurement are included in this
the ends of the specimen, one of which is immersed in a
standard.
sodium chloride solution, the other in a sodium hydroxide
1.3 The text of this standard references notes and footnotes
solution. The total charge passed, in coulombs, has been found
which provide explanatory material. These notes and footnotes
to be related to the resistance of the specimen to chloride ion
(excluding those in tables and figures) shall not be considered
penetration.
as requirements of the standard.
4. Significance and Use
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 This test method covers the laboratory evaluation of the
responsibility of the user of this standard to establish appro-
electrical conductance of concrete samples to provide a rapid
priate safety and health practices and determine the applica-
indication of their resistance to chloride ion penetration. In
bility of regulatory limitations prior to use.
most cases the electrical conductance results have shown good
correlation with chloride ponding tests, such as AASHTO
2. Referenced Documents
T259, on companion slabs cast from the same concrete
3
2.1 ASTM Standards: mixtures (Refs 1-5).
C31/C31M Practice for Making and Curing Concrete Test
4.2 This test method is suitable for evaluation of materials
Specimens in the Field
and material proportions for design purposes and research and
C42/C42M Test Method for Obtaining and Testing Drilled
development.
Cores and Sawed Beams of Concrete
4.3 Sample age has significant effects on the test results,
C192/C192M Practice for Making and Curing ConcreteTest
depending on the type of concrete and the curing procedure.
Specimens in the Laboratory
Most concretes, if properly cured, become progressively and
significantly less permeable with time.
1
This test method is under the jurisdiction of ASTM Committee C09 on
4.4 This test method was developed originally for evalua-
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
tionsofalternativematerials,butinpracticeitsusehasevolved
C09.66 on Concrete’s Resistance to Fluid Penetration.
to applications such as quality control and acceptance testing.
Current edition approved Feb. 1, 2012. Published March 2012. Originally
approved in 1991. Last previous edition approved in 2010 as C1202 – 10. DOI:
Factors such as ingredient materials used in concrete mixtures
10.1520/C1202-12.
andthemethodanddurationofcuringtestspecimensaffectthe
2
The boldface numbers in parentheses refer to the list of references at the end of
this standard.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Methods of Sampling and Testing, 1986, American Association of State
Standards volume information, refer to the standard’s Document Summary page on Highway and Transportation Officials, 444 N. Capitol St., NW, Washington, DC
the ASTM website. 20001.
*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
---------------------- Page: 1 ----------------------
C1202 − 12
results of this test (See Note 1). When this method is used for 6.1.1 Sep
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C1202–10 Designation:C1202–12
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.
1. 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.
2
Examples of such correlations are discussed in Refs 1-5.
1.2The values stated in inch-pound units are to be regarded as the standard, except where SI units are given first followed by
inch-pound units in parentheses. The values given in parentheses are for information only.
1.3
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
3
2.1 ASTM Standards:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C42/C42M Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.66 on
Concrete’s Resistance to Fluid Penetration.
Current edition approved Feb. 1, 2010.2012. Published March 2010.2012. Originally approved in 1991. Last previous edition approved in 20092010 as
C1202–09.C1202–10. DOI: 10.1520/C1202-102.
2
The boldface numbers in parentheses refer to the list of references at the end of this standard.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
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.
1
---------------------- Page: 1 ----------------------
C1202–12
2.2 AASHTO Standard:
4
T 259 Method of Test for Resistance of Concrete to Chloride Ion Penetration
3. Summary of Test Method
3.1 This test method consists of monitoring the amount of electrical current passed through 2-in. (51-mm) 50-mm thick slices
of 4-in. (102-mm)100-mm nominal diameter cores or cylinders during a 6-h period.Apotential difference of 60Vdc is maintained
across the ends of the specimen, one of which is immersed in a sodium chloride solution, the other in a sodium hydroxide solution.
The total charge passed, in coulombs, has been found to be related to the resistance of the specimen to chloride ion penetration.
4. 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 asAASHTO 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
...
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