Study of Quantitative Accuracy of Phase Composition of Mortar Using Heavy Liquid Separation and XRD/Rietveld Analysis

Abstract

This report was investigated about accuracy of phase composition of cement and cement hydrates in mortar samples when the heavy liquid separation was applied as sample preparation and then the samples were determined by XRD/Rietveld analysis using the internal standard method. Amount of amorphous phase as a part of hardened cement pastes in mortar samples with the heavy liquid separation were compared to mortar samples without the heavy liquid separation and hardened cement paste samples. As a result, it is found that the heavy liquid separation improved accuracy of phase composition of cement and cement hydrates mortar samples.