Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigations of the hydration behaviour of high reactive pure cement phases
Several high reactive pure phases of calcium silicates, calcium aluminates and other pure cement phases, such as dicalcium silicate (C2S), tricalcium silicate (C3S), monocalcium aluminate (CA), Mayenite (C12A7), tricalcium aluminate (C3A), Brownmillerite (C4AxF(2-x)), Gehlenite 2CaOAl203-Si02 (C2AS), Ye'elimite 4CaO-3Al2O3-SO3 (C4A3S) and Pleochroite Ca20Al(32-2x)Mg(x)Si(x)O68 were synthesized using different synthesis methods. To understand and investigate phase forming of these single phases different low temperature synthesis methods (self-propagating combustion synthesis, sol-gel synthesis and polymeric precursor processes) were performed. The hydration reactions of pure cement phases at early hydration times were investigated at ambient temperatures by heat flow calorimetry, X-ray diffraction and cryo-transfer scanning electron microscopy. Due to the different synthesis procedures, different hydration reactions and microstructures can be shown and the hydration behaviour at early times can be clearly understood.
Investigations of the hydration behaviour of high reactive pure cement phases
Several high reactive pure phases of calcium silicates, calcium aluminates and other pure cement phases, such as dicalcium silicate (C2S), tricalcium silicate (C3S), monocalcium aluminate (CA), Mayenite (C12A7), tricalcium aluminate (C3A), Brownmillerite (C4AxF(2-x)), Gehlenite 2CaOAl203-Si02 (C2AS), Ye'elimite 4CaO-3Al2O3-SO3 (C4A3S) and Pleochroite Ca20Al(32-2x)Mg(x)Si(x)O68 were synthesized using different synthesis methods. To understand and investigate phase forming of these single phases different low temperature synthesis methods (self-propagating combustion synthesis, sol-gel synthesis and polymeric precursor processes) were performed. The hydration reactions of pure cement phases at early hydration times were investigated at ambient temperatures by heat flow calorimetry, X-ray diffraction and cryo-transfer scanning electron microscopy. Due to the different synthesis procedures, different hydration reactions and microstructures can be shown and the hydration behaviour at early times can be clearly understood.
Investigations of the hydration behaviour of high reactive pure cement phases
Untersuchung des Hydratationsverhaltens von hochreaktiven, reinen Zementphasen
Raab, Bastian (Autor:in) / Pöllmann, Herbert (Autor:in)
2010
20 Seiten, 26 Bilder, 5 Tabellen, 66 Quellen
Aufsatz (Konferenz)
Englisch
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