An alternative approach to assessing pore solution composition and resistivity.

What is it about?

This paper explored the use of XRF as an alternative technique to determine the chemical composition of expressed pore solutions. This method could potentially enable cement manufactures to use a tool already at their disposal to provide more information about the cementitious pore solution and its properties, such as the chemical composition and resistivity, for numerous applications and at a lower cost and testing time than conventional methods.

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Why is it important?

XRF testing equipment is available to many cement manufacturers and research laboratories. The use of XRF to measure pore solution composition could provide accurate information about the chemical composition. XRF has an advantage when compared to other methods due to time required to perform the measurement and corresponding cost. When comparing preparation and testing time between XRF and a commonly used method, such as ICP-AES, testing time is reduced from 50 minutes per sample for ICP-AES to 8 minutes per sample for XRF. This method could extend the applications for XRF and could potentially be implemented in industry.

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