A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-resolution synchrotron powder diffraction analysis of ordinary Portland cements: Phase coexistence of alite
The mineralogical composition of four commercial and NIST RM-8488 Portland clinkers have been analysed by Rietveld methodology using high-resolution synchrotron X-ray powder diffraction data. Alite phase coexistence has been observed in four patterns. White Portland clinkers show a single alite or a very small amount of a second alite with smaller volume due to higher magnesium content. Grey Portland clinkers show a much pronounced alite phase coexistence which has been related to higher magnesium contents. Details about these analyses are given. Furthermore, the full mineralogical composition (including the non-diffracting content) has been determined from the overestimation of the added standard, alpha-Al2O3, in the Rietveld analyses. White clinkers contain (similar to)15 wt.% of non-diffracting content while this fraction is much smaller in grey clinkers, (similar to)7 wt.%.
High-resolution synchrotron powder diffraction analysis of ordinary Portland cements: Phase coexistence of alite
The mineralogical composition of four commercial and NIST RM-8488 Portland clinkers have been analysed by Rietveld methodology using high-resolution synchrotron X-ray powder diffraction data. Alite phase coexistence has been observed in four patterns. White Portland clinkers show a single alite or a very small amount of a second alite with smaller volume due to higher magnesium content. Grey Portland clinkers show a much pronounced alite phase coexistence which has been related to higher magnesium contents. Details about these analyses are given. Furthermore, the full mineralogical composition (including the non-diffracting content) has been determined from the overestimation of the added standard, alpha-Al2O3, in the Rietveld analyses. White clinkers contain (similar to)15 wt.% of non-diffracting content while this fraction is much smaller in grey clinkers, (similar to)7 wt.%.
High-resolution synchrotron powder diffraction analysis of ordinary Portland cements: Phase coexistence of alite
De La Torre, Angeles G. (author) / Losilla, Enrique R. (author) / Cabeza, Aurelio (author) / Aranda, Miguel A.G. (author)
2005
5 Seiten, 15 Quellen
Conference paper
English
| Elsevier | 1979
Phase identification of alite in portland cement clinker
| Elsevier | 1981
Microwave clinkering of ordinary and colored Portland cements
| Tema Archive | 1996