Analysis of cement pastes for triethanolamine

This report describes our efforts to analyze cement pastes for triethanolamine. This analysis can be efficiently accomplished after short hydration times ($\text{ca.}$ 3 min.) by gas chromatography or infrared spectroscopy. Only trace amounts of the amine are detected, however, after 24 hours of hydration. The infrared spectrum of the material extracted after 24 hours of hydration is different from that of the amine, suggesting that triethanolamine - cement reactions occur during hydration.