ASTM C1202 − 12 Standard Test Method for Electrical Indication of Concretes Ability to Resist Chloride Ion Penetration

ASTM C1202 − 12 Standard Test Method for Electrical Indication of Concretes Ability to Resist Chloride Ion Penetration

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.

ASTM C1202 − 12 Standard Test Method for Electrical Indication of Concretes Ability to Resist Chloride Ion Penetration

Summary of Test Method
3.1 This test method consists of monitoring the amount of electrical current passed through 50-mm thick slices of 100-mm nominal diameter cores or cylinders during a 6-h period.

A potential difference of 60 V dc 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.