ASTM G180 - 13 Standard Test Method for Corrosion Inhibiting Admixtures for Steel in Concrete by Polarization Resistance in Cementitious Slurries

ASTM G180 - 13

Standard Test Method for Corrosion Inhibiting Admixtures for Steel in Concrete by Polarization Resistance in Cementitious Slurries

Active Standard ASTM G180 | Developed by Subcommittee: G01.14

Book of Standards Volume: 03.02

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Significance and Use

4.1 This test method provides a means for assessing corrosion-inhibiting concrete admixtures.

4.2 This test method is useful for development of admixtures intended to reduce corrosion of reinforcing steel in concrete.

4.3 This test method is useful in determining the corrosivity of admixtures toward steel reinforcing if the admixture sample is compared to a control without admixtures.

4.4 Good performance, a reduction in corrosion rate versus chloride alone by at least one order of magnitude in this test, is a strong indication that an admixture is a corrosion inhibitor. However, poor performance requires additional testing to determine if the admixture improves corrosion resistance.

4.5 This test method shall not be used to predict performance in the field.

4.6 The filtering process makes this test not suitable for the evaluation of emulsions.

1. Scope

1.1 This test method covers a procedure for determining the effects of chemical admixtures on the corrosion of metals in concrete. This test method can be used to evaluate materials intended to inhibit chloride-induced corrosion of steel in concrete. It can also be used to evaluate the corrosivity of admixtures by themselves or in a chloride environment. This test is not applicable for emulsions.

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 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C150 Specification for Portland Cement

C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

D632 Specification for Sodium Chloride

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

G3 Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing

G5 Reference Test Method for Making Potentiodynamic Anodic Polarization Measurements

G59 Test Method for Conducting Potentiodynamic Polarization Resistance Measurements

ICS Code

ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

UNSPSC Code

UNSPSC Code 41114604(Corrosion testers); 30111900(Concrete reinforcement hardware)

Referencing This Standard

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DOI: 10.1520/G0180-13

Citation Format

ASTM G180-13, Standard Test Method for Corrosion Inhibiting Admixtures for Steel in Concrete by Polarization Resistance in Cementitious Slurries, ASTM International, West Conshohocken, PA, 2013, www.astm.org