Thermo XRD-analysis of two aged cement pastes
โ Scribed by E. T. Stepkowska; J. M. Blanes; A. Justo; M. A. Aviles; J. L. Perez-Rodriguez
- Book ID
- 106444346
- Publisher
- Springer Netherlands
- Year
- 2005
- Tongue
- English
- Weight
- 1021 KB
- Volume
- 80
- Category
- Article
- ISSN
- 0022-5215
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
This report describes our efforts to analyze cement pastes for triethanolamine. This analysis can be efficiently accomplished after short hydration times (ca. 3 min. ) by gas chromatography or infrared spectroscopy. Only trace amounts of the amine are detected, however, after 24 hours of hydration.
Triethanolamine (TEA) in hardened cement paste has been analyzed by infrared spectrophotometry. The technique is sensitive for the qualitative detection of small amounts of TEA. However, the percent recovery is very much concentration dependent and, until the reproducibility of the method has been
Two-dimensional nuclear magnetic resonance relaxation correlation studies of cement pastes have been performed on a unilateral magnet, the Surface GARField. Through these measurements, the hydration process can be observed by monitoring the evolution of porosity. Characteristic relaxation time distr