ASTM C1218/C1218M − 15 Standard Test Method for Water-Soluble Chloride in Mortar and Concrete

ASTM C1218/C1218M − 15 Standard Test Method for Water-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 water soluble under the conditions of test.

1.2 The text of this standard references notes and footnotes that provide explanatory information. These notes and footnotes shall not be considered as requirements of this standard.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as a standard.

Within the text, the inch-pound units are shown in brackets.

The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other.

ASTM C1218/C1218M − 15 Standard Test Method for Water-Soluble Chloride in Mortar and Concrete

Significance and Use
3.1 Water-soluble chloride, when present in sufficient amount, is capable of leading to initiation or acceleration of the corrosion of metals, such as steel, embedded in or contacting a cement system such as mortar, grout, or concrete.

Thus, its determination shall be required to evaluate the potential of a cement system for undergoing such reactions or to investigate cement systems where such reaction has already occurred.