Chemical and Instrumental Testing of Cement-Based Materials Leading to the Reconstitution of Their Substrate Composition

Teresa Szymura

doi:10.56583/br.1038

Published : 2015-01-09

Vol. 12 No. 3 (2014)

Chemical and Instrumental Testing of Cement-Based Materials Leading to the Reconstitution of Their Substrate Composition

Teresa Szymura

DOI: https://doi.org/10.56583/br.1038

Abstract

The article discusses testing of cement-based materials with the application of chemical analyses as well as of classical techniques according to the Polish standards: PN-EN 196–2:2006: “Methods for cement testing – Part 2: Chemical analysis of cement” and PN-EN 1744–1 “Tests for chemical properties of aggregates. Chemical analysis”. The obtained testing results have been verified by means of instrumental methods using X-ray fluorescence spectroscopy (XRF) for materials with certified reference samples. In other cases interpolation techniques have been applied. Estimated substrate composition of the produced cement-based materials has been calculated based on the material balance using a computer program. Final results have been calculated as an arithmetic mean of all possible solutions that meet boundary conditions. Joint application of both the mentioned methods to reconstitute substrate composition of cement-based materials has yielded results that approach the originally applied real composition at the maximum difference of a few percent.

Keywords:

concrete, portlandite, calcium silicate hydrate (C-S-H), mixture proportion, X-ray diffraction (XRD)

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Szymura, T. (2015). Chemical and Instrumental Testing of Cement-Based Materials Leading to the Reconstitution of Their Substrate Composition. Regional Barometer. Analyses & Prognoses, 12(3), 67–75. https://doi.org/10.56583/br.1038

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