Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete

Importancia y uso:

4.1 The amount of acid-soluble chloride in most hydraulic-cement systems is equal to the total amount of chloride in the system. However, some organic substances that may be introduced into mortar or concrete contain chloride that is initially acid-insoluble that can eventually ionize and thus become acid-soluble or water-soluble after a period of exposure in the very alkaline cement system.

4.2 Sulfides are known to interfere with the determination of chloride content. Blast-furnace slag aggregates and cements contain sulfide sulfur in concentrations that can cause such interference and produce erroneously high test results. Treatment with hydrogen peroxide, as discussed in Test Methods C114, is used to eliminate such interference.

4.3 There are aggregates that contain chloride that is not available for corrosion. Such chloride will be detected by the use of this method.4

Subcomité:

C09.69

Referida por:

C1582_C1582M-24, C1556-22, G0109-23, C1524-20, C1384-23

Volúmen:

04.02

Número ICS:

91.100.10 (Cement. Gypsum. Lime. Mortar), 91.100.30 (Concrete and concrete products)