Solidification of hazardous substances‐a TGA and FTIR study of Portland cement containing metal nitrates
- 1 August 1989
- journal article
- research article
- Published by Taylor & Francis in Journal of Environmental Science and Health, Part A
- Vol. 24 (6) , 589-602
- https://doi.org/10.1080/10934528909375504
Abstract
Type I Portland cement samples containing the soluble nitrates of the priority pollutant metals chromium, lead, barium, mercury, cadmium and zinc have been investigated using thermogravimetric and fourier—transform infrared techniques (including diffuse reflectance). The major vibrational bands and thermal stability of the carbonate, sulfate, silicate, water and nitrate species are tabulated and discussed in comparison to uncontaminated Portland cement. The solubility and volatility of mercury in cement and the effect of metal nitrate concentration on the silicate condensation process is discussed. Although results suggest that retardation of cement setting by Zn and Pb salts occurs by limiting hydration, the chemistry of the two processes is distinctly different.This publication has 12 references indexed in Scilit:
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