ASTM C1152/C1152M-97
(Test Method)Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
SCOPE
1.1 This test method provides procedures for the sampling and analysis of hydraulic-cement mortar or concrete for chloride that is acid soluble under the conditions of test. In most cases, acid-soluble chloride is equivalent to total chloride.
1.2 This standard does not purport to address the safety problems 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.
1.3 The values stated in inch-pound units are to be regarded as standard in those cases where such values are given, except for sieve sizes.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: C 1152/C 1152M – 97
Standard Test Method for
Acid-Soluble Chloride in Mortar and Concrete
This standard is issued under the fixed designation C 1152/C 1152M; 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 C 1084 Test Method for Portland-Cement Content of Hard-
2 ened Hydraulic-Cement Concrete
1.1 This test method provides procedures for the sampling
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
and analysis of hydraulic-cement mortar or concrete for
poses
chloride that is acid soluble under the conditions of test. In
most cases, acid-soluble chloride is equivalent to total chloride.
3. Significance and Use
1.2 The text of this standard references notes and footnotes
3.1 The amount of acid-soluble chloride in most hydraulic-
that provide explanatory information. These notes and foot-
cement systems is equal to the total amount of chloride in the
notes shall not be considered as requirements of this standard.
system. However, some organic substances that may be intro-
1.3 This standard does not purport to address all of the
duced into mortar or concrete contain chloride that is initially
safety concerns, if any, associated with its use. It is the
acid-insoluble that can eventually ionize and thus become
responsibility of the user of this standard to establish appro-
acid-soluble or water-soluble after a period of exposure in the
priate safety and health practices and determine the applica-
very alkaline cement system.
bility of regulatory limitations prior to use.
3.2 Sulfides are known to interfere with the determination of
1.4 The values stated in either SI units or inch-pound units
chloride content. Blast-furnace slag aggregates and cements
are to be regarded separately as standard. Within the text, the
contain sulfide sulfur in concentrations that can cause such
inch-pound units are shown in brackets. The values stated in
interference and produce erroneously high test results. Treat-
each system are not exact equivalents; therefore, each system
ment with hydrogen peroxide, as discussed in Test Methods
shall be used independently of the other.
C 114, is used to eliminate such interference.
2. Referenced Documents
4. Apparatus
2.1 ASTM Standards:
4.1 Sampling Equipment
C 42 Test Method for Obtaining and Testing Drilled Cores
3 4.1.1 The apparatus required for obtaining samples by
and Sawed Beams of Concrete
coring or sawing is described in Test Method C 42.
C 114 Test Methods for Chemical Analysis of Hydraulic
4 4.1.2 Use the following apparatus for sampling by drilling
Cement
(pulverization):
C 670 Practice for Preparing Precision and Bias Statements
3 4.1.2.1 Rotary Impact Drill and drill or pulverizing bits of
for Test Methods for Construction Materials
sufficient diameter to provide a representative sample of
C 702 Practice for Reducing Field Samples of Aggregate to
3 sufficient size for testing.
Testing Size
4.1.2.2 Spoon or other suitable means to remove pulverized
C 823 Practice for Examination and Sampling of Hardened
3 sample material from drill hole without contamination.
Concrete in Constructions
4.1.2.3 Sample Containers capable of maintaining samples
in an uncontaminated state.
This test method is under the jurisdiction of ASTM Committee C-9 on Concrete 4.2 Sample Processing Apparatus—The apparatus required
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.69 on
for processing samples shall be chosen for its suitability for the
Miscellaneous Tests.
purposes of the investigation, and frequently includes a con-
Current edition approved Jan. 10, 1997. Published March 1997. Originally
crete saw and one or more pulverizers.
published as C 1152 – 90. Last previous edition C 1152 – 90.
This test method is based on a report by Clear, K. C., and Harrigan, E. T.,
4.2.1 Samples more than 25 mm (1 in.) in maximum
“Sampling and Testing for Chloride Ion in Concrete,” Report No. FHWA-RD77-85,
dimension shall be reduced in size by use of a jaw crusher or
Federal Highway Administration, Washington, DC, Aug. 1977 (Available as PB
275-428/AS National Technical Information Services).
Annual Book of ASTM Standards, Vol 04.02.
4 5
Annual Book of ASTM Standards, Vol 04.01. Annual Book of ASTM Standards, Vol 14.02.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1152/C 1152M
broken into smaller pieces by hammering carefully to avoid 8. Procedure
loss of smaller pieces.
8.1 Select a sample having a mass of approximately 10 g.
4.2.2 Crush particles less than 25 mm (1 in.) in maximum
Determine the mass of the sample to the nearest 0.01 g and
dimension using a rotating puck grinding apparatus, or by
introduce into a 250-mL beaker. Use the reference method for
using a disk pulverizer, or mortar and pestle operated to restrict
chloride given in Test Methods C 114.
to negligible levels the loss of fine particles.
4.2.3 Sieve, 850-μm [No. 20], which shall comply with
9. Calculation
Specification E 11.
9.1 Calculate percent chloride by mass of mortar or con-
4.3 The apparatus required for the chloride determination
crete, by the reference method for chloride given in Test
step is given as the reference method for chloride in Test
Methods C 114.
Methods C 114.
9.2 Other useful measures of chloride concentration can be
4.4 Glazed Paper—Paper to which fine particles do not
obt
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