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Preliminary investigations of the phase composition and fine pore structure of super-critically carbonated cement pastes
Super-critical carbonation of cement-based materials can lead to significant improvements in their properties. Preliminary investigations suggested that processing should be aimed at producing a matrix material with minimal amounts of Ca(OH)2, anhydrous material and C-S-H gel along with a controlled pore structure. Using 29.Si MAS NMR and TGA as the principal investigative techniques it has been shown that moisture content during carbonation is a major factor in determining the phase composition and pore structure of the resulting matrix. Of the drying regimes studied, 60% DOD gave the greatest amount of conversion to calcium carbonate and silica gel.
Preliminary investigations of the phase composition and fine pore structure of super-critically carbonated cement pastes
Super-critical carbonation of cement-based materials can lead to significant improvements in their properties. Preliminary investigations suggested that processing should be aimed at producing a matrix material with minimal amounts of Ca(OH)2, anhydrous material and C-S-H gel along with a controlled pore structure. Using 29.Si MAS NMR and TGA as the principal investigative techniques it has been shown that moisture content during carbonation is a major factor in determining the phase composition and pore structure of the resulting matrix. Of the drying regimes studied, 60% DOD gave the greatest amount of conversion to calcium carbonate and silica gel.
Preliminary investigations of the phase composition and fine pore structure of super-critically carbonated cement pastes
Vorläufige Untersuchung der Phasenzusammensetzung und der Porenfeinstruktur von überkritisch carbonisierten Zementpasten
Short, N.R. (Autor:in) / Brough, A.R. (Autor:in) / Seneviratne, A.M.G. (Autor:in) / Purnell, P. (Autor:in) / Page, C.L. (Autor:in)
Journal of Materials Science ; 39 ; 5683-5687
2004
5 Seiten, 3 Bilder, 5 Tabellen, 8 Quellen
Aufsatz (Zeitschrift)
Englisch
| British Library Online Contents | 2004
The pore solution phase of carbonated cement pastes
| British Library Online Contents | 2005
The pore solution phase of carbonated cement pastes
| Tema Archiv | 2005
The pore solution phase of carbonated cement pastes
| Elsevier | 2004
The pore solution phase of carbonated cement pastes
| Online Contents | 2005