Neue Verbindungen im System CaO/SiO2/CaCl2/H2O |
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Authors: | H. Stade D. Heidemann B. Wallis |
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Abstract: | New Compounds in the System CaO/SiO2/CaCl2/H2O The hydrothermal formation of novel calcium silicate hydrates of compositions 5 CaO · 2 SiO2 · CaCl2 · 4 H2O, 5 CaO · 2 SiO2 · CaCl2 · 2 H2O and 4 CaO · 2 SiO2 · CaCl2 · H2O from Ca3SiO5 and mixtures of CaO and SiO2, respectively, in presence of calciumchloride at 200°–350 °C is described. From molybdate-reaction, 29Si MAS NMR, DTA and TG measurements it is concluded that these compounds are based on disilicate anions and are to be interpreted as calcium hydroxide disilicate chlorides. |
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Keywords: | Calcium silicate chloride hydrate 29Si MAS NMR, DTA, TG. |
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