AASHTO T 332-07(2011)

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Standard Method of Test for

Determining Chloride Ions

in Concrete and Concrete

Materials by Specific Ion Probe

AASHTO Designation: T 332-07 (2011)1

American Association of State Highway and Transportation Officials

444 North Capitol Street N.W., Suite 249

Washington, D.C. 20001

TS-3c T 332-1 AASHTO

Standard Method of Test for

Determining Chloride Ions in Concrete and

Concrete Materials by Specific Ion Probe

AASHTO Designation: T 332-07 (2011)1

1. SCOPE

1.1. This method covers the procedures for determining acid-soluble chloride ions in concrete and

concrete mix ingredients.

1.2. The age of concrete, mortar, or hydrated portland cement at the time of sampling will have an

effect on the acid-soluble chloride ion content. Therefore, unless early age studies are desired,

it is recommended that the material be well cured and at least 28 days of age before sampling.

1.3. This standard may involve hazardous materials, operations, and equipment. This standard does

not purport to address all of the safety concerns associated with its use. It is the responsibility of

the user of this procedure to establish appropriate safety and health practices and to determine

the applicability of regulatory limitations prior to use.

2. REFERENCED DOCUMENTS

2.1. AASHTO Standards:

 M 92, Wire-Cloth Sieves for Testing Purposes

 M 231, Weighing Devices Used in the Testing of Materials

 T 260, Sampling and Testing for Chloride Ion in Concrete and Concrete Raw Materials

2.2. ASTM Standards:

 D1193, Standard Specification for Reagent Water

 E1, Standard Specification for ASTM Liquid-in-Glass Thermometers

3. SUMMARY OF TEST METHOD

3.1. A 3.0-g drilled concrete powder sample is digested in 20 mL of an acid digestion solution and

stabilized by the addition of 80 mL of a stabilizing solution. Millivolt readings, taken for the

sample solution using a specific chloride ion probe, are converted mathematically into equivalent

total percent chloride content or chloride content in kg/m3 (lb/yd3) of concrete.

4. INTERFERENCES

4.1. The operational response of the specific ion electrode is subject to interference by the presence of

OH–, S2–, Br–, I–, and CN– in the measured solution and is based on the electrode manufacturer’s

allowable chloride interference ratio.

TS-3c T 332-2 AASHTO

4.2. Sulfides are known to interfere with the determination of chloride in solution. This test procedure

is, therefore, unsuitable for determining the chloride content of concrete containing mineral

aggregates containing significant quantities of pyrite.

5. SIGNIFICANCE AND USE

5.1. This method provides a rapid means of sampling and testing for total chloride ions in concrete in

the field.

6. APPARATUS

6.1. Impact Hammer—A heavy-duty rotary impact hammer with a drilling stop gauge is used.

See Figures 1 through 3.

Figure 1—Overall View of the Drilling Stop Gauge to Be Mounted on the Impact Hammer

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摘要：

AASHTO T 332-07(2011) 是美标沥青材料测试标准，专注于通过动态剪切流变仪测定沥青结合料在高温与中温条件下的流变特性。该标准为道路工程提供关键数据支持，帮助评估沥青的抗车辙与抗疲劳性能，适用于公路设计、质量控制及科研场景。文档于2007年首次发布，2011年确认有效，是国际路面施工与材料检测领域的重要参考依据。

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AASHTO T 332-07(2011)

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