Validation of a method for the extraction and quantification of water-soluble chloride in cement by ion chromatography

C. Daniel, A. R. Dablio, R. Damian, M. Lagmay, J. A. Valdueza, J. E. Guerrero, M. A. Principe

Abstract

Chloride is a corrosive anion that can attack steel and other metal embedded materials in concrete structures leading to its degradation. Chloride in concrete may come from the materials used for making concrete such as cement. Hence, it is important to have a reliable method for determining chloride in cement, in this case the water-soluble chloride which is representative of chloride that may pose corrosion risk. In this study, ASTM C1218/C1218M-20 was used as a guide for sample extraction and the water-soluble chloride was later quantified by ion chromatography. Validation of this method from extraction to instrumental determination was conducted by assessment of the linear range, detection limit, precision, and trueness. It was found that the method was suitable for the determination of water-soluble chloride content in cement.

Keywords

Water-soluble chloride, cement, method validation

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IMEKO-TC11-2023-07.pdf

DOI

10.21014/tc11-2023.07

IMEKO TC

TC11 - Measurement in Testing, Inspection and Certification

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