A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Electron microscopic examination of hydrothermally treated bentonite clay
Abstract Water-saturated Na bentonite clay with a bulk density of 2 g/cm3 was autoclaved at 150 and 200°C for up to 0.5 years and then left to rest under confined conditions at room temperature for several weeks. Transmission electron microscopy with elemental micro-analysis was applied to study hydrothermally induced changes, which were found to have the form of particle reorganization and, at 200°C, release and precipitation of silica. The precipitations are suspected to be hydrated amorphous silica gels. The microstructural alteration, which was more obvious at 200°C than at 150°C, involved regrouping of previously dispersed and expanded stacks of montmorillonite flakes to yield dense branches of interwoven, contracted stacks separated by large voids.
Electron microscopic examination of hydrothermally treated bentonite clay
Abstract Water-saturated Na bentonite clay with a bulk density of 2 g/cm3 was autoclaved at 150 and 200°C for up to 0.5 years and then left to rest under confined conditions at room temperature for several weeks. Transmission electron microscopy with elemental micro-analysis was applied to study hydrothermally induced changes, which were found to have the form of particle reorganization and, at 200°C, release and precipitation of silica. The precipitations are suspected to be hydrated amorphous silica gels. The microstructural alteration, which was more obvious at 200°C than at 150°C, involved regrouping of previously dispersed and expanded stacks of montmorillonite flakes to yield dense branches of interwoven, contracted stacks separated by large voids.
Electron microscopic examination of hydrothermally treated bentonite clay
Pusch, Roland (author) / Güven, Necip (author)
Engineering Geology ; 28 ; 303-314
1989-04-04
12 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2009
Alumina-silica rich clay brick waste in hydrothermally treated cement-based construction products
| British Library Conference Proceedings | 2009
Bentonite clay : environmental properties and applications
| TIBKAT | 2015
Bentonite Migration in Geosynthetic Clay Liners
| British Library Conference Proceedings | 1998